The document discusses the evolution of computers from their early invention to modern times. It describes how early computers were large, expensive machines only affordable to institutions and the wealthy, while modern computers are small, affordable devices ubiquitous in everyday life and business. The core components of computers like the CPU, RAM, hard drives and other parts are also explained.
Computer application appreciation unit iAndreaTugwell
This document provides an overview of computers including their history, components, functions, advantages, disadvantages and impact on society. It discusses the three generations of computers from the first generation in 1937 using vacuum tubes to today's third generation using integrated circuits. The functions of computers including input, output, storage, and processing are described. Advantages include speed, accuracy and cost effectiveness while disadvantages include viruses, online crimes and reduced job opportunities. The widespread adoption of computers has changed how we shop, communicate and access information.
The document outlines a computer appreciation course, including an introduction to using Windows XP, Microsoft Office programs, and the internet. It covers the basic components of a computer system including hardware, software, and human users. It describes the central processing unit, memory, storage devices, input/output devices, and how to perform basic tasks like starting up a computer, using applications, and shutting down. The goal is for students to understand computer systems and be able to perform basic operations.
The document provides an introduction to computers including:
1. The full form of computer is defined as commonly operated machine particularly used for technology education and research.
2. Computers are electronic devices that receive input, process data, and provide output. They are classified based on size, data handling abilities, and functionality.
3. The basic components of a computer system are described as the input, output, memory, and central processing unit.
Computer Tutorial Lesson Powerpoint Presentation - For Student and Teacher - ...Red Red
computercandys.com is a computer tutorial site, with lectures and references on computer technology such as computer unit, multimedia and networking, covering most aspects of computer hardware and software.
YT channel:
https://www.youtube.com/c/redtech101
Website:
https://www.computercandys.com
computer tutorial for everyone.
https://redcomputerscience.blogspot.com
A computer is a machine that can be programmed to manipulate symbols according to a set of instructions. Modern computers are electronic and digital, with hardware components like the CPU, memory, mass storage, and input/output devices, as well as software. Computers can be classified based on their size and power as personal computers, workstations, minicomputers, mainframes, or supercomputers. Personal computers are small, single-user machines that are now commonly based on Intel microprocessors and used for tasks like word processing, games, and internet browsing.
Batra Computer Centre is An ISO certified 9001:2008 training Centre in Ambala.
We Provide Best Basic Computer Training in Ambala. BATRA COMPUTER CENTRE provides best training in C, C++, S.E.O, Web Designing, Web Development and So many other courses are available.
This document is a module on computer hardware that discusses:
1) The evolution of computers through five generations from the 1940s to present, defined by the processor technology used from vacuum tubes to microchips.
2) The types of computers including supercomputers, mainframes, minicomputers, microcomputers, and workstations defined by their size, power, and intended use.
3) Five activities for students including explaining computer generations, matching processor types to generations, introducing computer types, labeling a diagram of types, and presenting information on types.
The document provides an introduction to the basic concepts of computers including defining a computer, describing common computer hardware components like the CPU, memory, and storage devices, and explaining different types of computer software like operating systems, programming software, and applications. It also classifies computers by size from supercomputers to personal digital assistants and provides examples of common computer hardware and software components.
Computer application appreciation unit iAndreaTugwell
This document provides an overview of computers including their history, components, functions, advantages, disadvantages and impact on society. It discusses the three generations of computers from the first generation in 1937 using vacuum tubes to today's third generation using integrated circuits. The functions of computers including input, output, storage, and processing are described. Advantages include speed, accuracy and cost effectiveness while disadvantages include viruses, online crimes and reduced job opportunities. The widespread adoption of computers has changed how we shop, communicate and access information.
The document outlines a computer appreciation course, including an introduction to using Windows XP, Microsoft Office programs, and the internet. It covers the basic components of a computer system including hardware, software, and human users. It describes the central processing unit, memory, storage devices, input/output devices, and how to perform basic tasks like starting up a computer, using applications, and shutting down. The goal is for students to understand computer systems and be able to perform basic operations.
The document provides an introduction to computers including:
1. The full form of computer is defined as commonly operated machine particularly used for technology education and research.
2. Computers are electronic devices that receive input, process data, and provide output. They are classified based on size, data handling abilities, and functionality.
3. The basic components of a computer system are described as the input, output, memory, and central processing unit.
Computer Tutorial Lesson Powerpoint Presentation - For Student and Teacher - ...Red Red
computercandys.com is a computer tutorial site, with lectures and references on computer technology such as computer unit, multimedia and networking, covering most aspects of computer hardware and software.
YT channel:
https://www.youtube.com/c/redtech101
Website:
https://www.computercandys.com
computer tutorial for everyone.
https://redcomputerscience.blogspot.com
A computer is a machine that can be programmed to manipulate symbols according to a set of instructions. Modern computers are electronic and digital, with hardware components like the CPU, memory, mass storage, and input/output devices, as well as software. Computers can be classified based on their size and power as personal computers, workstations, minicomputers, mainframes, or supercomputers. Personal computers are small, single-user machines that are now commonly based on Intel microprocessors and used for tasks like word processing, games, and internet browsing.
Batra Computer Centre is An ISO certified 9001:2008 training Centre in Ambala.
We Provide Best Basic Computer Training in Ambala. BATRA COMPUTER CENTRE provides best training in C, C++, S.E.O, Web Designing, Web Development and So many other courses are available.
This document is a module on computer hardware that discusses:
1) The evolution of computers through five generations from the 1940s to present, defined by the processor technology used from vacuum tubes to microchips.
2) The types of computers including supercomputers, mainframes, minicomputers, microcomputers, and workstations defined by their size, power, and intended use.
3) Five activities for students including explaining computer generations, matching processor types to generations, introducing computer types, labeling a diagram of types, and presenting information on types.
The document provides an introduction to the basic concepts of computers including defining a computer, describing common computer hardware components like the CPU, memory, and storage devices, and explaining different types of computer software like operating systems, programming software, and applications. It also classifies computers by size from supercomputers to personal digital assistants and provides examples of common computer hardware and software components.
This document provides an overview of key topics related to introduction to computers including:
- Definitions of computer, types of computers categorized by size and power, and the evolution of computers through four generations.
- The basic elements of a computer system including hardware, peripheral devices, and software. Hardware consists of components like the CPU and memory while software includes operating systems and application programs.
- How data is represented digitally using binary digits and coding schemes and how it is processed into meaningful information.
- Key roles in a computer system including users, professionals who design and operate systems, and end-users who utilize computers for tasks.
This document provides information about a computer appreciation and training session presented by MOZEEK INTERNET EXPLOIT. It discusses advantages of computers such as accuracy, speed, storage capacity and being economical long-term. It also covers topics like computer components, operating systems, input/output devices, computer storage, viruses and anti-virus software.
This document provides an overview of different types of computers and computer components. It discusses microcomputers, desktops, laptops, tablets, smartphones, servers, workstations, minicomputers, and mainframe computers. It also describes computer hardware components like processors, memory, storage, monitors, printers, and speakers. The document outlines computer software, programming languages, compilers, interpreters, booting, file systems, and multimedia. It provides examples of number systems, data conversion between decimal and binary. It also discusses ASCII, Unicode, and includes documentation for Microsoft Word, Excel and PowerPoint 2010. Finally, it lists potential assignments related to using computers.
The document provides an introduction to computers and digital technology. It defines computers and their basic functions. It explores the history of digital technology and how computers have evolved from large mainframe computers to today's personal computers. It also provides an overview of different types of computers, software, operating systems, and how computers connect to networks and the Internet.
Subject Outline
introduction to Information communication and technology
1.Introduction to ICT
2.Basic building blocks of a computer
3.Hardware system of a computer
4.Software system of a computer
5.Computing algorithms
6.Computer networks
7.Computer security
This document provides an overview of the key topics and objectives covered in Chapter 1 of Discovering Computers 2012. It defines what a computer is, describes the five main components, and discusses advantages and disadvantages of computer use. It also defines networks and the Internet, distinguishes between system and application software, and identifies different categories of computers and users. Finally, it discusses how computers are used in various sectors of society like education, healthcare, science and more.
A computer is an electronic device that takes in data from input devices, processes the data, and provides meaningful output. It was pioneered by Charles Babbage. Computers can store large amounts of data, perform complex calculations quickly and accurately, and work for long periods without tiring. Generations of computers progressed from using vacuum tubes to transistors to integrated circuits and now microprocessors. The CPU processes input data and provides output. Common input devices include keyboards, mice, and cameras, while common output devices are monitors, printers, and speakers.
The document provides definitions and descriptions of common computer system hardware components related to input and output. It defines input as anything inserted into a system to activate or modify a process, such as data from input devices. It then describes common input devices like mice, joysticks, webcams, and USB ports. It also defines output as anything exiting a system to activate or modify a process, and describes common output devices like printers, monitors, and keyboards that display or record the results of processed data.
The document is the first chapter of a textbook on computer fundamentals. It introduces computers by defining them as electronic devices that can perform high-speed calculations and process data. It describes the characteristics of computers and how they have evolved over several generations from early mechanical calculators and vacuum tube-based machines to today's personal computers, servers and supercomputers. The chapter also outlines the key hardware and software technologies of each generation of computers.
Understanding of Computer | Introduction | Computer In Business
Hello,
I am Saad Hasan from Begum Rokeya University, Rangpur.
All the Information of this slide is collected from "Fundamentals of Computer" written by E Balagurusamy. Any one can use for his presentations.
>>>>> If You Need Me to Create Slide for You,then You can find me through this link : https://www.linkedin.com/in/saadh393/
The document provides information about computers including definitions, characteristics, capabilities, limitations, types according to size, technology, purpose, and capacity. It discusses the history of computers from Charles Babbage to modern computers. It also describes the different components of a computer system including input devices, output devices, memory, the central processing unit, and software.
This document provides an overview of mobile hardware devices and networking concepts. It discusses different types of computers including desktops, laptops, tablets, and handheld devices. It also covers basic computer hardware components like the system unit, storage devices, input/output devices, and networking components. Additionally, it defines different types of computer networks including personal area networks, local area networks, wide area networks, and more. It also discusses mobile device architectures, security concerns for mobile devices, and the roles of device owners and information owners.
This document provides an overview of key computer concepts including the five components of a computer, advantages and disadvantages of computer use, definitions of terms like data, information, and networks. It describes different categories of computers from personal to supercomputers and embedded systems. Various types of computer users are defined from home to enterprise levels. The document concludes by outlining many societal applications of computers in fields such as education, finance, government, healthcare, science, publishing, travel and manufacturing.
The document provides information on several key events and developments in the United States during the 1920s. It discusses the 16th and 17th Amendments, women's suffrage movement leader Susan B. Anthony, changes for women after WWI, the 19th Amendment granting women's right to vote, the prosperity of the 1920s, the Scopes Monkey Trial, Prohibition, the impact of the automobile, mass culture including movies and radio, fashion and music of the Jazz Age, American writers of the period, the Harlem Renaissance, heroes of the 1920s like Babe Ruth and Charles Lindbergh, Coolidge's presidency, installment buying and the booming stock market.
The document provides perspectives from different cases on why the United States got involved in World War I. It includes perspectives from citizens, government officials, submarine commanders, survivors of attacks, and those in business and finance who saw economic opportunities from American involvement. Students are asked to review the perspectives and draw their own conclusion on why the U.S. entered the war based on the evidence presented.
1) Dr. Adam Richards works in a makeshift clinic in a refugee camp in eastern Burma to treat the nearly 4,000 displaced people who live there. 2) The refugees have been forced from their land by the Burmese military government and many suffer from malaria and other illnesses due to lack of access to healthcare. 3) Dr. Richards and local medics work to diagnose and treat malaria and other diseases in difficult conditions, trekking through the jungle to reach remote villages to save lives.
This document summarizes the political and economic conditions in the Chesapeake colonies between the 1640s-1670s. It describes the profitable tobacco industry that attracted immigrants seeking independence and land ownership. However, as tobacco prices fell and settlers moved further west, tensions rose with Native Americans over land. The document also outlines the hierarchical political system and the use of indentured servitude, where most English immigrants worked as servants for years in exchange for passage to America.
Gunmen stormed the Westgate shopping mall in Nairobi, Kenya on September 21, 2013, killing over 50 people and injuring many others. Photographer Goran Tomasevic documented the attack and its aftermath, capturing images of terrified shoppers fleeing the scene, armed police searching for the gunmen, and the injured and dead inside and outside the mall. The Somali terrorist group Al-Shabaab claimed responsibility for the mass shooting, which was the deadliest attack in Kenya in 15 years.
The document summarizes a memorial sculpture called "Tear Drop" located in Bayonne, New Jersey that was gifted by the Russian people to the United States to honor the victims of the 9/11 terrorist attacks and the 1993 World Trade Center bombing. The 100-foot tall steel and bronze sculpture was designed by Russian artist Zurab Tsereteli and depicts a large teardrop inside of an abstract structure. It is located along the waterfront within view of the Statue of Liberty and where the World Trade Center towers once stood. The sculpture seeks to pay tribute to the lives lost from terrorist attacks and stand in solidarity against terrorism.
1. Researchers at several universities created the fastest quantum computer bit yet by using lasers to initialize and manipulate the quantum state of an electron trapped in a semiconductor quantum dot at gigahertz speeds.
2. An article identifies the 8 most dangerous consumer technologies being brought into workplaces, such as instant messaging, webmail, camera phones, and Skype, and discusses how companies can balance security, productivity, and personal use of these technologies.
3. Travelport plans to roll out a new travel agency desktop in early 2009 that will provide access to Sabre and Amadeus booking systems and enable targeted advertising to agents based on bookings, with various pricing models for advertising, transactions, and subscriptions.
I do not have a strong opinion on these complex historical issues. Reasonable people can disagree on how to balance the rights and interests of indigenous peoples, settlers, and governments during the period of westward expansion in the United States.
This document provides an overview of key topics related to introduction to computers including:
- Definitions of computer, types of computers categorized by size and power, and the evolution of computers through four generations.
- The basic elements of a computer system including hardware, peripheral devices, and software. Hardware consists of components like the CPU and memory while software includes operating systems and application programs.
- How data is represented digitally using binary digits and coding schemes and how it is processed into meaningful information.
- Key roles in a computer system including users, professionals who design and operate systems, and end-users who utilize computers for tasks.
This document provides information about a computer appreciation and training session presented by MOZEEK INTERNET EXPLOIT. It discusses advantages of computers such as accuracy, speed, storage capacity and being economical long-term. It also covers topics like computer components, operating systems, input/output devices, computer storage, viruses and anti-virus software.
This document provides an overview of different types of computers and computer components. It discusses microcomputers, desktops, laptops, tablets, smartphones, servers, workstations, minicomputers, and mainframe computers. It also describes computer hardware components like processors, memory, storage, monitors, printers, and speakers. The document outlines computer software, programming languages, compilers, interpreters, booting, file systems, and multimedia. It provides examples of number systems, data conversion between decimal and binary. It also discusses ASCII, Unicode, and includes documentation for Microsoft Word, Excel and PowerPoint 2010. Finally, it lists potential assignments related to using computers.
The document provides an introduction to computers and digital technology. It defines computers and their basic functions. It explores the history of digital technology and how computers have evolved from large mainframe computers to today's personal computers. It also provides an overview of different types of computers, software, operating systems, and how computers connect to networks and the Internet.
Subject Outline
introduction to Information communication and technology
1.Introduction to ICT
2.Basic building blocks of a computer
3.Hardware system of a computer
4.Software system of a computer
5.Computing algorithms
6.Computer networks
7.Computer security
This document provides an overview of the key topics and objectives covered in Chapter 1 of Discovering Computers 2012. It defines what a computer is, describes the five main components, and discusses advantages and disadvantages of computer use. It also defines networks and the Internet, distinguishes between system and application software, and identifies different categories of computers and users. Finally, it discusses how computers are used in various sectors of society like education, healthcare, science and more.
A computer is an electronic device that takes in data from input devices, processes the data, and provides meaningful output. It was pioneered by Charles Babbage. Computers can store large amounts of data, perform complex calculations quickly and accurately, and work for long periods without tiring. Generations of computers progressed from using vacuum tubes to transistors to integrated circuits and now microprocessors. The CPU processes input data and provides output. Common input devices include keyboards, mice, and cameras, while common output devices are monitors, printers, and speakers.
The document provides definitions and descriptions of common computer system hardware components related to input and output. It defines input as anything inserted into a system to activate or modify a process, such as data from input devices. It then describes common input devices like mice, joysticks, webcams, and USB ports. It also defines output as anything exiting a system to activate or modify a process, and describes common output devices like printers, monitors, and keyboards that display or record the results of processed data.
The document is the first chapter of a textbook on computer fundamentals. It introduces computers by defining them as electronic devices that can perform high-speed calculations and process data. It describes the characteristics of computers and how they have evolved over several generations from early mechanical calculators and vacuum tube-based machines to today's personal computers, servers and supercomputers. The chapter also outlines the key hardware and software technologies of each generation of computers.
Understanding of Computer | Introduction | Computer In Business
Hello,
I am Saad Hasan from Begum Rokeya University, Rangpur.
All the Information of this slide is collected from "Fundamentals of Computer" written by E Balagurusamy. Any one can use for his presentations.
>>>>> If You Need Me to Create Slide for You,then You can find me through this link : https://www.linkedin.com/in/saadh393/
The document provides information about computers including definitions, characteristics, capabilities, limitations, types according to size, technology, purpose, and capacity. It discusses the history of computers from Charles Babbage to modern computers. It also describes the different components of a computer system including input devices, output devices, memory, the central processing unit, and software.
This document provides an overview of mobile hardware devices and networking concepts. It discusses different types of computers including desktops, laptops, tablets, and handheld devices. It also covers basic computer hardware components like the system unit, storage devices, input/output devices, and networking components. Additionally, it defines different types of computer networks including personal area networks, local area networks, wide area networks, and more. It also discusses mobile device architectures, security concerns for mobile devices, and the roles of device owners and information owners.
This document provides an overview of key computer concepts including the five components of a computer, advantages and disadvantages of computer use, definitions of terms like data, information, and networks. It describes different categories of computers from personal to supercomputers and embedded systems. Various types of computer users are defined from home to enterprise levels. The document concludes by outlining many societal applications of computers in fields such as education, finance, government, healthcare, science, publishing, travel and manufacturing.
The document provides information on several key events and developments in the United States during the 1920s. It discusses the 16th and 17th Amendments, women's suffrage movement leader Susan B. Anthony, changes for women after WWI, the 19th Amendment granting women's right to vote, the prosperity of the 1920s, the Scopes Monkey Trial, Prohibition, the impact of the automobile, mass culture including movies and radio, fashion and music of the Jazz Age, American writers of the period, the Harlem Renaissance, heroes of the 1920s like Babe Ruth and Charles Lindbergh, Coolidge's presidency, installment buying and the booming stock market.
The document provides perspectives from different cases on why the United States got involved in World War I. It includes perspectives from citizens, government officials, submarine commanders, survivors of attacks, and those in business and finance who saw economic opportunities from American involvement. Students are asked to review the perspectives and draw their own conclusion on why the U.S. entered the war based on the evidence presented.
1) Dr. Adam Richards works in a makeshift clinic in a refugee camp in eastern Burma to treat the nearly 4,000 displaced people who live there. 2) The refugees have been forced from their land by the Burmese military government and many suffer from malaria and other illnesses due to lack of access to healthcare. 3) Dr. Richards and local medics work to diagnose and treat malaria and other diseases in difficult conditions, trekking through the jungle to reach remote villages to save lives.
This document summarizes the political and economic conditions in the Chesapeake colonies between the 1640s-1670s. It describes the profitable tobacco industry that attracted immigrants seeking independence and land ownership. However, as tobacco prices fell and settlers moved further west, tensions rose with Native Americans over land. The document also outlines the hierarchical political system and the use of indentured servitude, where most English immigrants worked as servants for years in exchange for passage to America.
Gunmen stormed the Westgate shopping mall in Nairobi, Kenya on September 21, 2013, killing over 50 people and injuring many others. Photographer Goran Tomasevic documented the attack and its aftermath, capturing images of terrified shoppers fleeing the scene, armed police searching for the gunmen, and the injured and dead inside and outside the mall. The Somali terrorist group Al-Shabaab claimed responsibility for the mass shooting, which was the deadliest attack in Kenya in 15 years.
The document summarizes a memorial sculpture called "Tear Drop" located in Bayonne, New Jersey that was gifted by the Russian people to the United States to honor the victims of the 9/11 terrorist attacks and the 1993 World Trade Center bombing. The 100-foot tall steel and bronze sculpture was designed by Russian artist Zurab Tsereteli and depicts a large teardrop inside of an abstract structure. It is located along the waterfront within view of the Statue of Liberty and where the World Trade Center towers once stood. The sculpture seeks to pay tribute to the lives lost from terrorist attacks and stand in solidarity against terrorism.
1. Researchers at several universities created the fastest quantum computer bit yet by using lasers to initialize and manipulate the quantum state of an electron trapped in a semiconductor quantum dot at gigahertz speeds.
2. An article identifies the 8 most dangerous consumer technologies being brought into workplaces, such as instant messaging, webmail, camera phones, and Skype, and discusses how companies can balance security, productivity, and personal use of these technologies.
3. Travelport plans to roll out a new travel agency desktop in early 2009 that will provide access to Sabre and Amadeus booking systems and enable targeted advertising to agents based on bookings, with various pricing models for advertising, transactions, and subscriptions.
I do not have a strong opinion on these complex historical issues. Reasonable people can disagree on how to balance the rights and interests of indigenous peoples, settlers, and governments during the period of westward expansion in the United States.
The document summarizes key events and social changes in the United States during the 1920s. It discusses the controversial trial of Italian immigrants Sacco and Vanzetti who were executed despite claims of innocence. It also describes the resurgence of the Ku Klux Klan and widespread anti-immigrant sentiment. The document outlines women's changing social roles and fashion during the decade as well as the Scopes trial over teaching evolution in schools. It provides context on prohibition and the rise of organized crime figures like Al Capone who profited greatly from illegal alcohol during this era.
USA- Boston Marathon bombing - April 15,2013vinhbinh2010
Two explosions occurred near the finish line of the Boston Marathon on April 15, 2013, killing 3 people and injuring over 170. Photos and videos from the scene show injured spectators and runners being aided by bystanders and emergency responders in the immediate aftermath. In the following days, people left flowers, candles and signs at a memorial near the bombing site to honor the victims. Investigations into the attack began as people expressed shock and solidarity.
The document discusses the history of early electronic data processing and computer generations. It describes the Mark 1, the first fully automatic digital computer completed in 1944. It then discusses the ENIAC, the first general-purpose electronic computer developed between 1943-1946 which used 18,000 vacuum tubes. Finally, it introduces the EDVAC, the first computer designed to be stored-programmed, employing binary arithmetic and developed by John von Neumann.
A design methodology and a language framework which contributes to providing a solid, scalable framework for developing next-generation silicon-based systems.
The document discusses the political and geographical factors that led different British colonies in North America to unite and form the country of Canada. It notes that the colonies varied greatly in size, with the largest being Quebec and the smallest being Prince Edward Island. The document also examines why English and French were chosen as the official languages, given the diverse ethnic and linguistic backgrounds of Canadians at the time.
- Take That was formed in 1990 by Nigel Martin-Smith as a British boy band centered around singer-songwriter Gary Barlow. The band initially achieved success in the UK with hits like "It Only Takes a Minute" before breaking through globally in the 1990s.
- Robbie Williams left the band in 1995 due to drug abuse and the band continued as a four-piece before officially disbanding in 1996. They reunited in 2005 and achieved renewed success with albums like Beautiful World and singles like "Patience".
- Take That has had an influential career spanning three decades, with nine number one singles in the UK and over 50 million records sold worldwide, establishing themselves as one of the most successful boy bands in history
The document summarizes the English colonization of North America, focusing on Virginia, New England, and Carolina. It describes the founding and early struggles of Jamestown in Virginia in 1607. It then discusses the Puritan pilgrims who founded Plymouth in 1620 and larger Puritan migration to Massachusetts Bay in the 1630s. The document also outlines the establishment of Carolina in the 1670s, the division into North and South Carolina, and the development of the plantation system focused on rice and indigo production by the 1760s.
Liberating lives: Invisible Australians and biographical networksTim Sherratt
This document describes the life of Charlie Allen, a man born in Sydney in 1896 to an Australian mother and Chinese father. At age 13, Charlie's father took him to China and left him there for 6 years. When Charlie returned to Australia in 1915, he struggled to enlist in the military due to his mixed heritage. The document notes that details about Charlie's life are known through archival records, including immigration documents. It discusses how examining individual lives through biographical narratives can provide different insights than viewing people only as part of archival systems.
The document discusses the history of the Panama Canal, beginning with the Spanish colonization of Panama in the early 1500s. It describes how the Spanish built a road called El Camino Real across the isthmus to transport gold and silver from South America to ships headed for Spain. Over time, the Spanish developed a system using the Chagres River to transport goods between the Caribbean and Pacific coasts. The California Gold Rush in 1848 increased traffic across Panama as prospectors sought a quicker route to California. This led to the development of steamship lines to facilitate transportation across the isthmus.
This document provides summaries of Alma Daskalaki's portfolio projects from 2010. It includes summaries of 3 academic projects from her 1st, 2nd, and final years of study:
1) "Notes at Your Fingerprints" - An educational toy that teaches music notation placement through an interlocking mechanism.
2) A water timer project that counts 4 minutes using falling ping pong balls powered only by the potential energy of 1 liter of water.
3) A group project for DePuy involving the design of an "acoustic inserter" providing surgeons feedback during hip implant insertion and innovative packaging for implants.
Henry II appointed his friend Thomas Becket as Archbishop of Canterbury. However, their friendship soured when Becket refused to help Henry reform the church courts to be under the king's authority. Tensions escalated and Becket fled to France. Upon their reconciliation, Becket excommunicated Henry's supporters, angering Henry. Four knights heard Henry's angry words "Who will rid me of this troublesome priest?" and murdered Becket in Canterbury Cathedral. Henry later denied intending for Becket to be killed.
This document summarizes the evolution of computers from their early invention to modern computers today. It discusses Wilhelm Schockard inventing the first calculating machine in 1623 and Konrad Zuse inventing the first programmable computer in 1941. Early computers were large, slow, expensive and could only perform simple tasks. The document then outlines the basic components of modern computers like the CPU, RAM, hard drive, motherboard, video card and optical drives. It concludes by discussing important networking certifications like A+, Network+, CCNA, and CCNP and their associated salaries.
The document summarizes the three stages of computing and components of a computer. It discusses the five generations of computers from first to fifth generation, describing the technology used in each. It then provides an overview of the major internal and external hardware components of a computer, including the central processing unit, memory, storage devices, input/output devices, and other supporting hardware. Software is defined as the programs that provide instructions to the CPU.
The document provides an introduction and overview of computers, including their history from mechanical calculators to current generations, components such as the system unit, input/output/storage devices, and categories including personal computers, servers, and supercomputers. It discusses the evolution of computers and components in each generation as well as the basic functions, parts, and uses of the modern computer system.
Ch 1 introduction and 2 computer software 1rjsuthar56
The document summarizes the evolution of computers over five generations from the 1950s to present:
- The first generation used punched cards for input and vacuum tubes for memory and storage. High-level programming languages were developed.
- The second generation replaced vacuum tubes with transistors, enabling faster and more reliable computers. Timesharing allowed multiple users to access mainframe computers remotely via terminals.
- The third generation saw the development of integrated circuits and microprocessors, allowing for smaller computers. Networks like ARPANET, the precursor to the Internet, were established.
- The fourth generation featured microcomputers powered by microprocessors like the Intel 8080. The IBM PC launched in 1981, popularizing the use of microcomputers
This document provides an overview of computer fundamentals and concepts. It begins with definitions of a computer as a device that accepts input, processes data, stores data, and produces output. It then discusses the evolution of computers through different generations from vacuum tubes to transistors to integrated circuits. The document also covers classifications of computers such as mainframes, minicomputers, microcomputers, supercomputers, and servers based on factors like size, cost, and performance. It provides examples for each generation and type of computer. The document concludes with general applications and capabilities of computers.
The document provides a syllabus for an Agri-Informatics course. The theory section covers topics like operating systems, MS Office applications, databases, computer programming, e-agriculture, geospatial technology, and decision support systems. The practical section involves using software like MS Word, Excel, and Access, as well as introducing programming languages and hands-on experience with crop simulation models, nutrient computation tools, and decision support systems. Students will also learn about computer hardware, file management, and geospatial technology.
This document discusses different types of input and output devices used with computers. It describes keyboards, mice, touch screens, scanners, microphones, and other pointing devices as common input methods. Output devices mentioned include computer monitors in CRT, LCD, and LED varieties, printers, speakers, magnetic storage like hard drives and floppy disks, optical discs, flash memory, and online/cloud storage. The document provides examples and brief explanations of these various computer peripherals and storage technologies.
The document provides an overview of computer systems including:
1) It describes the main components of a computer system including hardware, software, firmware, and users.
2) It explains the evolution of computers from early mechanical calculating devices to modern electronic computers.
3) It outlines the four generations of computers and how they progressed from using vacuum tubes to integrated circuits.
The document defines and describes different types of computers based on their size, power, and intended uses. It discusses personal computers, workstations, minicomputers, mainframes, and supercomputers. It also covers different form factors for personal computers including desktop models, tower models, notebooks, subnotebooks, handhelds, palmtops, and PDAs. The key characteristics and components of all computers are also outlined.
The document discusses the key elements of a computer system, including hardware, software, peopleware, and data. It provides details on common computer parts like the system unit, motherboard, CPU, memory, ports, storage devices, input devices, output devices, and communication devices. It also defines software, operating systems, and gives examples of MS-DOS and Windows. The overall topic is the components that make up a basic computer system.
This document provides an overview of computer architecture. It discusses how computer architecture is the science of selecting and interconnecting hardware components to meet functional, performance and cost goals. The document then explains key concepts like instruction sets, components of computers like processors and memory, and design goals for architectures like performance, cost and reliability. It also covers the evolution of computer technologies over generations from mechanical to vacuum tube-based systems to today's integrated circuits.
The document defines a computer and describes its basic functions of input, storage, processing, and output. It then discusses and provides examples of various input devices like keyboards, mice, microphones, and digital cameras. Processing devices mentioned include the CPU, GPU, sound card, NIC, and motherboard. Output devices include monitors, printers, headphones, and speakers. Storage devices include hard disk drives, floppy disk drives, CDs/DVDs, and flash drives. The document also covers types of computers like supercomputers, mainframes, and microcomputers as well as transmission media used to transmit data like wired, wireless, radio waves, and infrared. Finally, it describes the major internal and external parts of a
The document provides an overview of the basic components of a computer system, including hardware, software, and peopleware. It describes the major internal hardware components such as the system unit, motherboard, CPU, memory, power supply, storage devices, and ports. It also discusses input devices like keyboards, mice, and scanners, as well as output devices including monitors, printers, and speakers. The document defines system software and application software. It concludes by stating that peopleware refers to the people involved in operating computer systems.
Unit 1 one part introduction to computersNeha Kurale
This document provides an introduction to computers, including:
- The definition and features of computers such as speed, accuracy, memory.
- An overview of computer generations from vacuum tubes to modern computers.
- The basic components of a computer system including the CPU, memory, storage, and input/output devices.
- A brief history of early computers and pioneers like Babbage and their contributions to the development of modern computers.
Computers can be categorized into five generations based on the underlying technology used. The first generation used vacuum tubes, the second used transistors, the third used integrated circuits, the fourth used microprocessors, and the fifth generation and beyond involves artificial intelligence. Each generation brought improvements in size, speed, reliability and capabilities. Computers have evolved from room-sized machines capable of solving one problem at a time, to devices that can fit in the palm of the hand and have vastly more processing power.
A computer is an electronic device that can manipulate, store, retrieve and process data for more useful information. It is programmable to respond to specific instructions. The mainframe is considered the heart of a computer network, allowing hundreds to work on the same data at once in a cold, dry environment. Supercomputers perform massive calculations like weather forecasting or engineering design. Minicomputers were less important as PCs grew more powerful, originally developed for tasks tying up mainframes like engineering calculations.
The document outlines a week-long introductory computer course, including theory and practical sessions on system familiarization, software classification, and DOS commands. It then provides definitions and overviews of computers, including their primary functions of storing, processing, and transferring data. The document discusses the five generations of computers and types of computers like supercomputers, mainframes, and microcomputers. It also covers the parts of a computer like the motherboard, memory, processor, hard drive, and input/output devices.
The document discusses computer hardware components including the central processing unit (CPU). The CPU is described as the "brain" of the computer that converts input data into output information by performing compiled instructions. The main functions of the CPU are described as fetching instructions from memory, decoding them, and executing them. Specific components of the CPU like the program counter, address bus, data bus, and arithmetic logic unit are mentioned in the context of their roles in processing instructions.
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
Generating privacy-protected synthetic data using Secludy and MilvusZilliz
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
Boost your website's visibility with proven SEO techniques! Our latest blog dives into essential strategies to enhance your online presence, increase traffic, and rank higher on search engines. From keyword optimization to quality content creation, learn how to make your site stand out in the crowded digital landscape. Discover actionable tips and expert insights to elevate your SEO game.
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfChart Kalyan
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...Tatiana Kojar
Skybuffer AI, built on the robust SAP Business Technology Platform (SAP BTP), is the latest and most advanced version of our AI development, reaffirming our commitment to delivering top-tier AI solutions. Skybuffer AI harnesses all the innovative capabilities of the SAP BTP in the AI domain, from Conversational AI to cutting-edge Generative AI and Retrieval-Augmented Generation (RAG). It also helps SAP customers safeguard their investments into SAP Conversational AI and ensure a seamless, one-click transition to SAP Business AI.
With Skybuffer AI, various AI models can be integrated into a single communication channel such as Microsoft Teams. This integration empowers business users with insights drawn from SAP backend systems, enterprise documents, and the expansive knowledge of Generative AI. And the best part of it is that it is all managed through our intuitive no-code Action Server interface, requiring no extensive coding knowledge and making the advanced AI accessible to more users.
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
This presentation provides valuable insights into effective cost-saving techniques on AWS. Learn how to optimize your AWS resources by rightsizing, increasing elasticity, picking the right storage class, and choosing the best pricing model. Additionally, discover essential governance mechanisms to ensure continuous cost efficiency. Whether you are new to AWS or an experienced user, this presentation provides clear and practical tips to help you reduce your cloud costs and get the most out of your budget.
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
While computers have been around for decades their components inside keep evolving. In order to keep up with this evolving technology a Network Administrator will need to receive the proper certifications and training.
This topic is important to me because I feel that people do not know any of the history of how the computer was invented, what all of the components inside a computer do, and how much work goes into building and designing a new computer
http://www.dictionary.com A computer is just a device that you give it a set of instructions and it will perform the desired tasks that you told it to do. ALso, computers are also in everything that we have today in this day in age. Computers are in our watches, car, cell phones, etc.
In this section of the powerpoint I will be telling you the history of computers, and the people that invented them. http://laptops.webhostingoverview.com/wp-content/uploads/2007/06/176.jpg http://images.apple.com/macbookpro/images/design-hero20090915.jpg
William Schockard was born in 1592 in Germany he was a universal scientist, and a professor in astronomy. While he was in college he mainly researched mathematics, and astronomy. Schockard was also one of the first people to build a working calculating machine back in 1623. The calculating machine that he invented and built was designed to calculate astronomical tables. The machine that he built could only perform simple tasks such as add and subtract six digit numbers.
Konrad Zuse was not the inventor of the first computer, but he invented the first computer that was fully functional and programmable. Replicas only exist because Zuse’s original computer was destroyed when the allies bombed Berlin in 1943. All photos, and original documents of the machine were also destroyed. Some facts about his computer are that the original one consumed over 4000 watts of electricity, it took .8 seconds to add & 3 seconds to multiply, and it weighed over 2,200 pounds.
The picture to the left is a picture of Konrad Zuse, and the picture to the right is a replica of the Z3, Konrad Zuse’s invented. http://upload.wikimedia.org/wikipedia/commons/4/4c/Z3_Deutsches_Museum.JPG
Early computers were all hand built because there was not enough demand for them. The demand for the computer was not great because they were very expensive. It cost $666.66 ($2,500 adjusted for inflation 2009) for the Apple I that was introduced to the public in 1976. Also, the early computer could only perform simple tasks such as running a spreadsheet program. http://upload.wikimedia.org/wikipedia/commons/2/27/Apple_I.jpg
Many of the modern computers that are made today are designed to be lightweight, and be very cheap. Besides the advantages of having a small computer with the low cost and portability, there are many disadvantages when it comes to a small and cheap computer. Firstly with a small computer, since there is less space inside the computer the components become smaller and the electronics tend to become very hot and overheat fast. Also, when computers are becoming cheaper then the parts become more mass produced and then today’s computers are not are durable as they were 5 years ago. As technology evolves, then the computers that are made today are hundreds of times more powerful regarding processor speed. Also when computers were first available they consumed about 20,000 watts of electricity, and today computers can use as little as 30 watts of power http://i.dell.com/resize.aspx/inspiron-1012-right-black-standard-500/149 http://media.laptoplogic.com/data/news/images/2615/dell-new-inspirons.jp g
On April 4, 1975 Bill Gates founded the company Microsoft On April 1, 1975 Steve Jobs and Steve Wozniak founded the Apple Computer computer
Keeping a work environment clean is important because of many reasons. -when dusk gets between metal contacts, it could cause a device to not work properly -always use a antistatic mat and antistatic wrist strap because static electricity can short out electrical components causing them not to work.
Always unplug before servicing anything, because if you don’t, you could receive a potentially deadly shock. Also, some of the electronics that make up a computer retain energy when you unplug a computer, so first unplug the device, and wait a couple minutes. Unplugging a computer could also reduce energy costs, come of the components in a computer can still consume energy even when the computer is off.
It is always important to remove anything that is conductive from your hands and wrists because if you don’t you can get a electrical shock and you can short out electrical components.
Capacitors look like small batteries and they are deceiving because you cannot visibly tell if they are currently storing electricity. Some capacitors can store electricity for a period of time even when they are disconnected from a power source. To discharge a capacitor you should get a screw driver and touch the two leads, and then the capacitor is safe to touch or handle. http://rsk.imageg.net/graphics/product_images/pRS1C-2264681t98.jpg http://rsk.imageg.net/graphics/product_images/pRS1C-2266188t98.jpg http://rsk.imageg.net/graphics/product_images/pRS1C-2264549t98.jpg
Never service parts that are not designed to be serviced because they contain sensitive parts that are not made to be touched. Some parts are not designed to be serviceable because parts are not available for the product, and some items can be serviced, but by only a qualified professional.
The CPU is commonly referred to as the brain of the computer because it is the place were most calculations of the computer take place. Also, the CPU is the most important element of a computer heattsink http://www.product-reviews.net/wp-content/userimages/2008/05/budget-45nm-penryn-cpu.jpg http://www.digitalworldtokyo.com/entryimages/2008/01/080130_CPU.jpg
Heat-sinks are very important because heat is one of electronics worst enemy. Because if a device overheats you could potentially destroy the computer. Heat-sinks operate off of the principle that it attaches to a device that is hot and it absorbs and dissipates the heat because it is cooler. The heat-sink then transfers the heat from the fins of the heat-sink to the air through a fan. http://www.dictionary.com http://www.build-your-own -computer.net/image-files/cpu-heatsink-basic.jpg http://www.electropages. com/articleImages/large/14307.jpg http://www.simplyheatsinks.com/simheat/B asics/Principle.aspx
RAM is a volatile type memory which means that it will lose all of its contents once power is lost to the chip, compared to a hard drive which keeps its contents stored even when the power is lost. RAM is a type of computer memory that stores all of your applications and files that are open on the computer. How RAM works is that when you open a application the computer loads the application from the hard drive to the RAM in which it runs from until you close the application. Why is having enough RAM important? RAM is important because the lack of RAM is usually the main bottle neck in computer performance Also, adding RAM to your computer can also be one of the “Cheapest” ways to speed up your computer.
A hard drive is a non-volatile type of storage that magnetically stores data on a platter or disk. The hard drive is also a important part to a computer because it stores all of the user date and information required to run a computer. Hard drives are very fragile because it has a precisely balanced disk and even the slightest bump can knock off its alignment. If the hard drive is damaged in any way you can permanently lose everything on the disk forever. Non-volatile memory is a type of memory that can store information even when it is powered off. http://globaltech-ow.com/Products/Storage%20devices/images/TTB.jpg http://img16.imageshack.us/i/1020064.jpg/
There are many advantages of having a solid state drive than a Hard drive. Solid state drives are 3-5 times faster than a hard drive, They are completely silent, they have a very high reliability because of the lack of moving parts, they use less power (this is key for laptops), and in a SSD there is twice the data density than a hard drive. SOme disadvantages of SSD’s are more expensive than a hard drive (.10 per gigabyte for a hard drive and 2.00 per gigabyte for a SSD), and they will wear out after about 2,000,000 write cycles. http://compreviews.about.com/od/storage/a/SSD.htm http://tathya.net/wp-content/uploads/2010/03/Soli dStateHardDrive.jpg http://laptoping.com/wp-content/transcend_SSD_32 GB.jpg
The motherboard is a computers primary circuit board that holds all of the computer chips and links them together. http://www.newegg.com/Product/ImageGallery.aspx?CurImage=13-130-234-TS&SpinSet=13-130-234-SS&ISList=13-130-234-234&Depa=0&WaterMark=1&Description=MSI%20G31TM-P21%20LGA%20775%20Intel%20G31%20Micro%20ATX%20Intel%20Motherboard
A video is important to a computer because without one you would not be able to display any graphics that the computer is trying to display. Also, video cards come in two different types: separate expansion cards, and video cards that are imbedded into the motherboard. The main difference between the two types of video cards is that the separate cards are better because they are faster than the ones that come with the motherboard. http://students.apsweb.org/~amunguia/hardware/video%20card.jpg http://upload.wikimedia.org/wikipedia/commons/c/c5/Gpu-connect ions.png
http://www.cybercafelatino.com/wp-content/uploads/2010/02/Sound-Card.jpg http://www.wisegeek.com/what-is-a-sound-card.htm http://142.22.38.253/kn owledgeroot/uploads/image/sound_card.jpg Sound c ards can be built into the motherboard, but usual ly they are disabled for a better quality add-on sound card. T he sound cards that are built into the motherboard are for people who are the “average” user, but the add-on card is more for professional sound editing or people that want surpurb sound quality. Sound cards can range in price from $15-$400.
http://en.wikipedia.org/wiki/File:Asus_CD-ROM_drive.jpg http://www.hardwarezone.com/img/data/articles/2005/1558 /optical_Drive.jpg Optical disk drives are important because they are the primarily media to install new programs or files to your computer.
A computer monitor is also the part of the computer that displays the graphics that are produced from a computer. There are two types of monitors that are widely used today. The two major types of monitors are the CRT monitor, & LCD monitor display monitor. All of these two monitors do the same thing, but in a different way. There are two other types of monitor but they are not widely used today. The first type is a Plasma monitor, and a Projection type monitor. Plasma monitors are not widely used because they are expensive, they are usually only available in sizes on 40 inches of bigger, and they are suspitable to screen burn in. ALso main people do not use projectors and a display monitor because they have a low screen resolution, and have very large screens. Projectors are mainly used for presenting or showing a movie to a large group of people. http://star-techcentral.com/archives/2007/5/29/prodit/Philips_1b.jpg http://www.samsung.com/us/system/consumer/product/2009/08/22/ls24kiz kfvza/2494SW_Front_Medium.jpg h h h
Screen burn in can cause irreversible damage to a computer screen. Screen burn in mostly occurs on Plasma monitors and CRT monitors, but any monitor is suspitable to screen burn in http://upload.wikimedia.org/wikipedia/commons/4/45/Screen_burn_screen_off.png http://en.wikipedia.org/wiki/File:Emerson-McDonalds_CNN_Burn-In.jpg