Hardware concepts
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A computer system consists of a central processing unit (CPU) that controls input and output devices and performs arithmetic and logical operations. The CPU contains a control unit that directs the flow of data and an arithmetic logical unit that performs calculations. Memory in a computer system includes both primary memory like ROM and RAM that is directly accessible by the CPU, as well as secondary memory like hard disks, pen drives, CDs, and DVDs for long-term storage.
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The document defines and describes the main parts of a computer including the CPU, mouse, keyboard, monitor, printer, scanner, CD, and hard disk. The CPU is described as the "brains" that processes information. A mouse has a ball on the bottom and two buttons used for clicking. A keyboard is used for typing like a typewriter. A monitor is the screen used to view the computer. A printer and scanner are used to copy pictures. A CD holds information that can be accessed by the computer. A hard disk also stores information for the computer.
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The document discusses the main components of a computer system including the central processing unit, primary storage devices like RAM and ROM, secondary storage devices like hard disks and tapes, as well as input devices such as keyboards and mice and output devices such as monitors, printers, and speakers.
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The document summarizes some key parts of a computer:
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The document defines and describes the main parts of a computer including the CPU, mouse, keyboard, monitor, printer, scanner, CD, and hard disk. The CPU is described as the "brains" that processes information. A mouse has a ball on the bottom and two buttons used for clicking. A keyboard is used for typing like a typewriter. A monitor is the screen used to view the computer. A printer and scanner are used to copy pictures. A CD holds information that can be accessed by the computer. A hard disk also stores information for the computer.
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The document summarizes some key parts of a computer:
The keyboard is the main input device used to type text and numbers. The motherboard is the central circuit board that connects the main computer components. The mouse is a pointing device used to control movement on the screen and features buttons for user input. The monitor displays images and outputs from the computer. A sound card converts digital audio data to sound that can be played through speakers.
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The document defines and describes several common computer hardware components:
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- A keyboard uses an arrangement of buttons to input characters, numbers, and commands through mechanical or electronic switches corresponding to symbols.
- A mouse detects two-dimensional motion relative to its surface and uses motion to move a pointer, allowing for fine control of a graphical user interface.
- A motherboard is the central circuit board that connects and houses the basic components of a computer system.
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The document defines and describes several common computer hardware components:
- A monitor displays images generated by computers without producing a permanent record and comprises a display device, circuitry, and enclosure, using either LCD or CRT technology.
- A keyboard uses an arrangement of buttons to input characters, numbers, and commands through mechanical or electronic switches corresponding to symbols.
- A mouse detects two-dimensional motion relative to its surface and uses motion to move a pointer, allowing for fine control of a graphical user interface.
- A motherboard is the central circuit board that connects and houses the basic components of a computer system.
- A CPU or processor can execute computer programs and is the electronic circuit at the core of a computer
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The monitor displays images generated by computers without producing a permanent record. The keyboard uses an arrangement of buttons to input letters, numbers, and commands through mechanical or electronic switches. The motherboard is the central circuit board that connects the main computer components. The mouse is a pointing device that detects two-dimensional motion and translates it to move a pointer on the screen.
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The document summarizes several common computer hardware components in 3-5 sentences each:
- A monitor displays images generated by computers without producing a permanent record, comprising a display device, circuitry, and enclosure. Modern monitors use LCD while older used CRT.
- A keyboard uses an arrangement of buttons to input letters, numbers, and commands through mechanical or electronic switches corresponding to symbols. Special key combinations input actions or commands.
- A mouse detects two-dimensional motion to move a pointer on screen allowing fine control of GUIs, physically consisting of an object held in the hand with buttons or wheels for additional control.
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A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data (input), process the data according to specified rules, produce information (output), and store the information for future use.
I hope this will help you to gain more knowledge about computer . ENJOY!!!
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The document defines the basic parts of a computer including the tower, motherboard, CPU, RAM, ROM, and input and output devices. The motherboard is the backbone that connects all other parts, the CPU is the brain that tells other parts what to do, and RAM is the temporary memory while ROM is the permanent memory. The objective is to teach students basic computer terminology per state standards.
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The document describes four common computer parts:
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- The printer produces physical copies of electronic documents.
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Input devices such as keyboards, touch screens, and webcams allow users to enter data into a computer. Output devices like speakers, printers, and monitors are used to display or output the data from the computer by producing sound, printing copies, or showing pictures made of pixels on a screen. Common input devices are keyboards for entering text, touch screens for selecting options, and webcams for capturing video, while common output devices include speakers for audio, printers for hard copies, and monitors for visual display of information.
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How to use abstract classes?
Purpose of abstract class
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Examples
Characteristics explained
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The document provides information about classes and objects in Java. It discusses what a class is, class naming conventions, members of a class including fields and methods, declaring objects, allocating memory to objects using the new keyword, instance variables, instance methods, and some examples. Specifically:
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- Members of a class include fields (properties) and methods (behaviors). Fields can be primitives or references, methods define object interactions.
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This document provides statistics and information about various aspects of India such as its states, union territories, climate, geology, soils, industries, power projects, wildlife, agriculture, and tourism attractions. It includes tables listing states and union territories with their capitals and literacy rates. It also describes India's climate zones, natural vegetation types, soil types, drainage basins, minerals, forests, irrigation sources, and more.
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India is the 7th largest country in the world located in South Asia. It has a population of over 1 billion people and has a diverse climate and terrain that includes mountains, deserts, and coastal plains. The majority of the population practices Hinduism but there are also significant populations of Muslims, Christians, Sikhs, Buddhists, and Jains. Hindi and English are the official languages although over 1,600 other languages are spoken. The economy is based around agriculture, software development, machinery, textiles, and other major industries. Transportation within India is primarily via railroads, roads, and an extensive merchant marine and air transport system.
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Black Money in India.
Black money refers to funds earned through illegal or underground economic activities that are untaxed. India generates the most black money in the world at $1,456 billion, mostly through corruption, tax evasion, and money laundering. Much of this black money is stored in Swiss bank accounts and moved using hawala networks. Recovering black money could repay India's foreign debt 24 times over and boost the economy tremendously by adding to GDP. However, black money also fuels poverty, inflation, and hinders development. Measures like amnesty schemes, simplifying tax laws, and increasing enforcement could help reduce the generation of black money.
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Indian black money refers to undisclosed funds and income earned through illegal means that have not been taxed. Estimates suggest over Rs. 7,280,000 crores of Indian money is deposited in foreign banks, especially Swiss banks. While exact numbers are unknown, Swiss banking officials say Indians are among the largest depositors of illegal foreign money in Switzerland. In 2010, India revised tax agreements with Switzerland to facilitate investigations into black money held in Swiss accounts. A whistleblower provided Wikileaks with a list of famous Indians alleged to have stashed money from activities like mining, stock market manipulation, and drug dealing in Swiss banks since the 1970s.
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Corruption involves wrongdoing by those in power through illegitimate or unethical means, often involving bribery. Common forms of corruption include bribery, embezzlement, abuse of power, and favoritism. Globalization has increased corruption risks but also opportunities to address it. Governments and anti-corruption agencies can curb corruption by ensuring transparency, accountability, and an independent judiciary combined with a free press.
India PPT
India is located in South Asia between Pakistan, China, and Nepal. It has over 1 billion people and is the largest democracy in the world. India has a long history dating back 5,000 years and was home to ancient civilizations like the Indus Valley Civilization. It is very diverse with over 300 languages and many major religions coexisting. Some of India's most notable contributions are yoga, Ayurveda, the number zero, and being the birthplace of Buddhism, Hinduism, Jainism, and Sikhism. India celebrates many festivals and has rich cultural traditions like classical dance, music, art, and architecture.
Solar power.ppt
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- Advantages of solar power in Pakistan include a free power source, no pollution, and suitability for remote areas, while disadvantages are high initial costs and reliance on sunlight.
- Several solar power plants currently operate in Pakistan and the government is promoting expansion through land allocation projects.
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Solar energy is energy from the sun that can be converted into thermal or electric energy. Thermal energy from the sun is used for heating while electric energy uses photovoltaic cells to produce electricity. The document discusses the history of solar energy development and provides examples of practical solar energy applications today such as solar panels, vehicles, street lights, and water pumps. It also outlines the advantages of solar energy being renewable, sustainable, and reducing environmental impacts compared to fossil fuels. The high upfront costs of solar energy systems and dependence on sunlight availability are mentioned as disadvantages.
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The document discusses basic computer components and how they work together. It describes that all computers have the same basic components of input, processing, and output. The main components are the CPU (brain), memory (RAM and ROM), secondary storage (disks, CDs), and peripheral devices for input/output. The CPU contains the ALU for calculations and logic, and the control unit which directs instructions. Memory is used for temporary storage of data and instructions being processed, while secondary storage holds larger amounts of data for later use. Information flows from input devices to memory to the CPU and back out to output devices.
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This document provides an overview of the key components of a typical desktop computer system, including the keyboard, monitor, CD/DVD drive, hard disk, RAM, motherboard, CPU, and optional components like a scanner. It describes the basic functions and specifications of these components.
Motherboard
This document provides an overview of the key components found on a computer motherboard. It discusses the types of motherboards, including ATX, baby AT and dual-processor boards. The main components described are the CPU, RAM, ROM BIOS, CMOS memory, ports and expansion slots. RAM is used to temporarily store programs and data, while ROM contains startup instructions. CMOS memory requires a small amount of power to retain settings like time and disk information. The CPU processes data and coordinates other components via the data bus and RAM. Ports and interface cards provide connections to peripheral devices.
สรุปบทที่ 3 องค์ประกอบคอมพิวเตอร์
This document discusses the basic components of a computer system and various input and output devices. It outlines the main units of a computer including the input, output, processing, and memory units. It then describes different types of input devices such as keyboards, mice, scanners, microphones, and cameras. It also discusses various output devices like monitors, printers, and speakers. The document concludes by explaining different roles in the IT field including programmers, software engineers, network administrators, and computer center managers.
وحدة الذاكرة الرئيسة Main memory
Main memory includes ROM, RAM, and cache memory. ROM stores permanent instructions for starting up the computer and is non-volatile, while RAM is volatile and stores active programs and data. Cache memory is high-speed memory between the CPU and RAM that stores frequently used data to improve processing speed.
ส่วนประกอบของคอมพิวเตอร์
(1) The document discusses various components of a desktop computer system including the CPU, main memory (RAM), display card, hard drive, CD/DVD drive, printer, modem, network card, case, mouse, keyboard, speaker, scanner, webcam, floppy drive, power supply, CPU fan, and joystick.
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RAM/ROM and its TYPES
RAM is the primary memory of a computer that can access any memory cell directly. The two main types are DRAM and SRAM. DRAM (dynamic RAM) is commonly used in computers and needs to be refreshed to retain data. It stores each bit in a storage cell with a capacitor and transistor. ROM is a permanent, non-volatile memory that usually cannot be written to by the user. The main types are PROM, EPROM, EEPROM and flash memory.
Computer memory
Primary memory, also called main memory or volatile memory, is directly accessible to the CPU and includes RAM and ROM. RAM is temporary memory that loses its contents when power is lost, while ROM permanently stores essential programs and instructions. Secondary memory, also called external storage, includes hard drives and solid state drives and provides significantly more storage than primary memory but is not directly accessible by the CPU. Memory is classified and its functions are explained.
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The document summarizes the different types of computer memory. It describes primary memory (RAM and ROM) and secondary storage. RAM is volatile and temporarily stores active data and programs, while ROM is non-volatile and stores permanent instructions. RAM types include SRAM and DRAM, while ROM types are PROM, EPROM, and EEPROM. Secondary storage is non-volatile and stores long-term data at a lower cost than primary memory.
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This document discusses different types of computers and their components. It covers analog computers, digital computers, and hybrid computers. It then describes various computer components including the central processing unit, memory types like RAM, hard disks, and input/output devices. Specific computer types are outlined such as mainframes, mini computers, microcomputers, and personal computers. The document provides details on computer cases, motherboards, CPUs, memory modules, and storage devices.
Memory
This document discusses different types of computer memory. It explains that memory can be volatile, like RAM, or non-volatile, like ROM. RAM is used for temporary storage and access by the CPU, while ROM permanently stores essential startup programs. The document outlines the main types of ROM (PROM, EPROM, EEPROM) and RAM (SDRAM, DDR RAM, DDR2 RAM). It provides details on how each type works and its applications in computer systems.
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The document describes two multi-core chip architectures: the Intel Single Chip Cloud Computer with 48 x86 cores, and the Tilera Tile-Gx100 with 100 MIPS cores. It also details the architecture of a scalable multi-core system that connects multiple processor cores through on-chip networks to external memory controllers and I/O interfaces. The system uses field-programmable gate arrays to provide scalability and customization of both the core complexes and system functions.
Ch5
The document discusses different types of computer memory used in embedded systems. It describes the basic concepts of memory including read/write ability and storage permanence. Common memory types are described such as ROM, RAM, EEPROM, and flash memory. Details are provided on each type's write ability, storage permanence, typical uses, and example technologies. Memory hierarchy and concepts like cache are also mentioned.
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The document provides an overview of the main components of a computer system. It describes the central processing unit (CPU) and its functions of fetch, decode, execute, memory, and write back. It also discusses the motherboard, main memory (RAM), monitor, video graphics card, CD/DVD drive, hard drive, printer, modem, network card, computer case, mouse, keyboard, speakers, and scanner. It provides brief descriptions of each component and some examples.
Types of memory 10 to11
The document discusses the different types of memories used in computers. It describes primary memory, also called internal or semiconductor memory, which includes RAM and ROM that are used for short-term storage of data currently being processed. It also describes secondary or external magnetic memory, such as hard disks, that are used for long-term and bulk storage of data. RAM is volatile and loses data when powered off, while ROM is non-volatile and retains data permanently.
Types of memory
The document discusses the different types of memories used in computers. It describes primary memory, also called internal or semiconductor memory, which includes RAM and ROM that are used for short-term storage of data currently being processed. Secondary memory, also called external or magnetic memory, includes hard disks and floppy disks that provide long-term and bulk storage of data. RAM is volatile memory while ROM is non-volatile. Specific types of RAM include DRAM and SRAM, and specific types of ROM include PROM, EPROM, and EEPROM.
Types of memory
The document discusses the different types of memories used in computers, including primary memory (RAM and ROM), secondary memory (magnetic disks), and optical memory. Primary memory is semiconductor memory located directly in the CPU that is used for temporary storage of actively used data and programs. It includes volatile RAM and non-volatile ROM. Secondary memory is located outside the CPU and is used for bulk storage of data, including magnetic hard disks and floppy disks.
Computers Architecture1
This document summarizes different components of a basic computer system. It describes the central processing unit (CPU) as carrying out computer program instructions. It defines computer memory and its two main types: RAM and ROM. RAM is volatile memory that loses data when power is removed, while ROM is non-volatile and contains the BIOS and boot programs. It also outlines common input devices like keyboards and pointing devices, and output devices like printers and monitors that allow interaction with the computer. Peripherals are described as attached devices that expand the computer's functionality.
Introduction to parts of Computer(Computer Fundamentals)
This document provides an introduction to the main internal and external parts of a computer. It discusses the monitor, mouse, keyboard, chassis, motherboard, power supply, hard drive, floppy drive, CD/DVD drive, RAM, ROM, microprocessor, expansion cards, ports, slots, and chipset. It provides details on the purpose and basic functioning of each part.
Similar to Hardware concepts (20)
Introduction to parts of Computer(Computer Fundamentals)
Introduction to parts of Computer(Computer Fundamentals)
Hardware concepts
- 1. Computer System CPU I/O Memory Control Unit (CU) Input Devices- Output Devices- Primary Secondary Arithmetic Logical Unit (ALU) Keyboard Monitor ROM RAM Hard Disk Scanner Printer Pen Drive ROM DRAM(dynamic RAM) Mouse Speaker CD PROM(programmable SRAM(static RAM) ROM) Joystick Plotter DVD EPROM(erasable PROM) Bar Code Reader Projector Floppy EEPROM(electrically EPROM)