Computer 1 test prep
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Analog computers represent data on a continuous scale, while digital computers use discrete binary digits (bits) to represent data as either 0 or 1. Digital computers take input data, process it, and provide output. Common input devices include keyboards, mice, scanners, cameras, and microphones, while common output devices include monitors, printers, projectors, televisions, and speakers. Computers can be configured for individual, group, or specialized uses.
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Digital literacy 1 a basic terms powerpoint
This document provides definitions and explanations of basic computer hardware and software terms. It discusses what a computer is and the basic components of the information processing cycle, including input, processing, storage, and output. It then defines and describes common input devices like keyboards, mice, scanners, and microphones. Output devices covered include monitors, printers, speakers, and projectors. The document also discusses storage devices, peripherals, and some other basic computer terms.
Usage of computer hardware
The document discusses various computer hardware input and output devices. It describes input devices like keyboards, mice, scanners and biometric devices that allow data to enter the computer. It also covers output devices such as printers, monitors, projectors and plotters that allow the computer to display or print data out. The document provides examples of specific types of input and output hardware and their uses.
Input output device
This document discusses input and output devices for computers. It describes various input devices like keyboards, mice, scanners and microphones that allow data and programs to enter a computer. It also covers output devices like printers, monitors and plotters that allow computers to display and print data in human-readable form. Printers are divided into impact and non-impact types. The document provides details on the functioning and uses of different I/O devices.
A basic terms power point
This document provides an overview of basic computer terms and components. It defines a computer as an electronic device that can manipulate, store, retrieve and process data. It then explains the basic concepts of hardware, software, input, processing, storage, output, and peripherals. The document also describes and provides examples of common input devices like keyboards, mice, scanners, and microphones. It discusses output devices such as monitors, printers, speakers and projectors. The summary concludes by noting that the document provides definitions and examples of basic computer terms and components.
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This document discusses different types of computer devices, including input devices like keyboards, mice, and scanners that allow data and instructions to enter the system. It also covers output devices like monitors and printers that display or print processed data from the computer. Storage devices are also mentioned. Input devices translate user input into a form the computer can understand using device drivers, while output devices take processed data and present it in a human-readable format like graphics, text, or audio. A variety of input and output device types are listed along with their features and uses.
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Input devises
Input devices capture information from the external environment and translate it into a format that can be processed by computers. Common input devices include keyboards, pointing devices like mice, game controllers, scanners, styluses, microphones, digital cameras, and webcams. Keyboards are the most widely used input device and come in different types like wireless and portable keyboards. Pointing devices include mice, trackballs, touchpads, and pointing sticks which are used to choose and enter commands. Game controllers are mainly used for playing games while scanners, styluses, microphones, digital cameras, and webcams serve as specialized input devices.
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Digital literacy 1 a basic terms powerpoint
This document provides definitions and explanations of basic computer hardware and software terms. It discusses what a computer is and the basic components of the information processing cycle, including input, processing, storage, and output. It then defines and describes common input devices like keyboards, mice, scanners, and microphones. Output devices covered include monitors, printers, speakers, and projectors. The document also discusses storage devices, peripherals, and some other basic computer terms.
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Peripheral devices are external hardware devices attached to a computer that are either input or output devices. Input devices receive signals or data into the system and include keyboards, mice, webcams, barcode readers, image scanners, and touch screens. Output devices send signals or data from the computer and include display devices like computer monitors, LCD projectors, and printers.
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evolution of computers
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EVOLUTION OF COMPUTER
1. Information technology refers to the use of computers and software to manage information, including storing, protecting, processing, transmitting, and retrieving information.
2. The history of information technology spans from early writing systems to modern computers. Key developments include the abacus, mechanical calculators, punch cards, mainframe computers, and personal computers.
3. Modern information technology is digital and based on integrated circuits and microprocessors. Advances like graphical user interfaces, operating systems, and the internet have driven the widespread use of personal computers and mobile devices.
Evolution of a computer 2
This document provides a brief history of the evolution of computers from the 1930s to present day. It describes some of the earliest electronic digital computers like the ABC and Z3 and how they were used. It then outlines the development of Colossus, the Mark I, ENIAC, and EDVAC and notes technological advances like stored programs. Later sections discuss the first commercial computer UNIVAC I and large systems like SAGE. The document concludes by mentioning the development of transistors, microprocessors, GUIs, and advances like Deep Blue, virtual reality, robots like ASIMO, and the future of computing.
Progress of Computers
Early computers were mechanical machines created by inventors like Leonardo Da Vinci to help with calculations. Through the 1800s and early 1900s, mechanical calculators and tabulating machines were developed to help mathematicians and clerks with complex calculations. The first modern electronic computers then emerged in the 1940s, including ENIAC which was made of vacuum tubes. The 1950s saw the development of smaller mainframe computers using transistors instead of tubes. By the 1970s, microcomputers for personal use emerged like the MITS Altair and IBM PC, using magnetic disks and chips. Today's computers have further miniaturized into portable laptops and hybrid tablet computers.
Evolution & History of Computers
The document traces the evolution of computers from early mechanical calculating devices like the abacus to modern electronic computers. It discusses the development of semi-automatic mechanical calculators in the 17th-19th centuries built by pioneers like Pascal, Leibniz, and Babbage. The first general purpose programmable computer was Babbage's Analytical Engine in the 1830s. Electronic computers emerged in the 1940s like ENIAC and EDVAC using vacuum tubes. Transistors were introduced in the 1950s ushering in smaller, faster computers. Integrated circuits from the 1960s led to yet smaller personal computers. The evolution continues with artificial intelligence as the next frontier.
The evolution of computers
This document summarizes the evolution of computers from the 17th century to modern times in four generations:
1) Mechanical generation (1642-1945) featuring early mechanical calculators and computers like the Pascaline, Difference Engine, and Analytical Engine.
2) Vacuum tube generation (1945-1955) including pioneering computers like Colossus, ENIAC, EDVAC, and UNIVAC I that used vacuum tubes and were programmed via switches or cables.
3) Transistor generation (1955-1965) when transistors replaced vacuum tubes, enabling smaller size and lower power. Computers included the TX-0 and IBM 7090.
4) Integrated circuit
102 Evolution of computers
A well- illustrated presentation on the Evolution of computers based on the U.C.E Computer Studies Syllabus.
Analog and Digital Computers
There are two main types of computers: analog computers and digital computers. Analog computers represent and manipulate data using continuously variable aspects like voltage, while digital computers use discrete binary digits. An example of an analog computer is an educational model from 1960 that used electrical, mechanical, and hydraulic components to model problems. In contrast, digital computers like mainframes represent data using binary and can only be in two states, requiring many transistors for precise values. The key difference is that analog computers perform calculations in parallel using continuous variables like voltage, while digital computers work sequentially in discrete steps using binary digits.
02. History - Evolution of Computers
The document summarizes the evolution of computers from ancient counting devices like the abacus to modern computers. It describes early mechanical calculating devices developed by Napier, Pascal, and Leibniz. Punched cards were introduced in the 18th century to control looms. Babbage designed analytical engines in the 1800s but they were never completed. The first digital computers like ENIAC, EDVAC, EDSAC and UNIVAC used vacuum tubes. The microprocessor was invented in 1969, leading to personal computers in the 1970s. Modern computers integrate all components into a single chip called a system on chip.
History Of Computer
As early as the 17th century, mathematicians were working to build machines that could perform basic math functions like addition and multiplication. In 1804, Charles Babbage designed the difference engine, an early general purpose computer with a mechanical memory. Generations of computers are defined by their underlying technology: first used vacuum tubes (1940s), second used transistors (1950s), third used integrated circuits (1960s), fourth used microprocessors (1970s), and fifth aims to use artificial intelligence, with some applications like voice recognition in use today.
GENERATIONS OF COMPUTER
The document discusses the five generations of computers from the first to fifth generation. [1] The first generation used vacuum tubes and were very large in size. [2] The second generation used transistors and were smaller with magnetic storage. [3] The third generation used integrated circuits and were smaller still with multiple users accessing remote terminals.
Evolution Of The Computers
The document discusses the evolution of computers over five generations from the 1940s to present day. Early computers used vacuum tubes which generated a lot of heat and frequently burnt out. The second generation saw the introduction of transistors which were smaller, needed no warmup, and consumed less energy. The third generation used integrated circuits and silicon chips, making computers smaller and cheaper. The fourth generation included the microprocessor and personal computers. Current and future fifth generation computers utilize more advanced technologies like robotics, virtual reality, and language translation programs.
Presentation on output device
This document provides an overview of different types of computer output devices. It begins by defining an output device as an electromechanical device that accepts data from a computer and translates it into a form suitable for users. Output is classified as either soft-copy, which is temporary, or hard-copy, which provides permanent output. The document then describes various output devices including monitors, printers, plotters, projectors, and voice response systems. It provides details on the purpose and functioning of each type of output device.
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This document discusses analog and digital input/output for basic computer design. It explains how to use digital and analog output and input through functions like digitalWrite, digitalRead, analogRead and analogWrite. It also covers digital input modes like pullup input and how analog to digital converters are used to read analog voltages and return values from 0 to 1023.
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An input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing. Depending on the interaction, a device can be both, referred to as an input/output or I/O device.
For example, as you can see in the top half of the image, a keyboard sends electrical signals, which are received by the computer (input). Those signals are then interpreted by the computer and displayed on the monitor as text (output). In the lower half of the image, the computer sends data to a printer, which will print the data onto a piece of paper (output).
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An output device can receive data from another device, but it cannot send data to another device. Examples of an output device include a computer monitor, projector, and speakers, which can receive data (output) from the computer, but they cannot send information (input) to the computer.
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This document provides definitions and explanations of basic computer hardware and software terms. It discusses what a computer is and the basic components involved in information processing, including input, processing, storage, and output. It then defines and describes common input devices like keyboards, mice, scanners, and microphones. Output devices covered include monitors, printers, speakers, and projectors. The document also discusses storage devices, peripherals, and some other specialized hardware like graphics tablets, biometric devices, and plotters.
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This document discusses PC hardware related to imaging and sound devices. It covers scanner and digital camera technology, how to install and troubleshoot these devices. It also discusses sound technology including sound cards, speakers and configuring sound in Windows. Topics include selecting devices based on features, installing hardware and troubleshooting common issues.
A input output device
This document discusses computer input and output devices. It describes various input devices like keyboards, mice, scanners and microphones that allow data and instructions to enter a computer. It also covers output devices such as monitors, printers and plotters that display or print data in human-readable form. Printers are divided into impact and non-impact types. The document provides details on the functioning and uses of different I/O devices.
Input and output devices
This document discusses various input and output devices used with computers. Output devices described include displays, speakers, DVD/CD drives, headsets, printers, plotters, and projectors. Input devices covered are mice, keyboards, digital cameras, scanners, microphones, light pens, graphics tablets, and barcode scanners. Each device is briefly described in terms of its function and purpose.
Input output painted
The document discusses various computer input and output devices. It describes common input devices like keyboards, mice, microphones, digital cameras, and scanners that allow a user to enter data into a computer. It also outlines output devices such as monitors, speakers, and different types of printers that display information from the computer for the user.
Multimedia Technology and its Application
This document provides an overview of key elements of multimedia including text, graphics, digital audio, and video. It discusses formatting and file types, obtaining and editing various media types, and calculating file sizes. The document also covers authoring tools, describing different categories of tools and factors to consider when selecting an authoring paradigm.
Multimedia Input Devices
This document discusses different types of multimedia input devices, including devices for hand input like pens, touch screens, and game controllers. It also covers optical input devices like bar code readers and image scanners, as well as audio-visual input devices such as microphones for speech recognition and video cameras. Input devices allow users to interact with computers and multimedia by entering text, images, audio, and video in digital form.
Unit 1 two part hw sw os app sw
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Lec # 06 Computer Hardware (IO Devices)-1.pptx
The document discusses various computer hardware components, including input and output devices. It describes common input devices like keyboards, mice, scanners, microphones, and webcams. It also discusses output devices such as monitors, printers, speakers, and projectors. The document provides details on how these devices work and their functions in inputting data and instructions into a computer or outputting the results of processing.
Multimedia
This slide gives a brief discussion of the multimedia. This is based on Anita Goel's Computers Fundamentals.
You can have a clear vision of the devices, video, audio and animations.
1unit two input output
Here are the answers to the questions:
1. The main input devices are:
- Keyboard - Used to type text and commands into the computer.
- Mouse - A pointing device used to control the movement of the cursor on screen and select items.
- Microphone - Used for speech recognition to input voice commands.
- Digital camera - Used to take photos and input images into the computer by connecting the camera.
- Scanner - Used to digitally input images and text into the computer.
2. The primary output devices are:
- Monitor - The main visual output device that displays text, graphics, videos on screen. Common types are CRT and LCD.
- Printer - Produces physical
Input and output devices
The document discusses various common input and output devices for computers. It defines input devices as those that provide data and commands to the computer, like mice, keyboards, microphones, and scanners. Output devices are those that display or print computer data in a human readable form, such as monitors, printers, speakers, and projectors. For each device type, it provides a brief description of its function and role as either an input or output component in processing and presenting digital information.
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This document discusses input and output devices and how to configure them. It covers common input devices like keyboards, mice, cameras and microphones. Output devices discussed include monitors, printers and speakers. It also describes how operating systems handle input/output and how device drivers are used to support specific hardware features. The document provides information on installing drivers in Windows, Mac and Linux systems.
14. Computer Systems Output Devices
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Microphone (Veronica P. Sta. Monica)
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Grade9_Unit 1.pdf
The document summarizes the basic components of a computer system. It discusses that a computer system consists of hardware, software, and liveware. It describes the major hardware components including input devices like keyboards and mice, processing devices like the CPU, output devices like monitors and printers, and storage devices like hard disks. It also discusses the different types of software including operating systems, utility software, and application software. Finally, it covers liveware which refers to the users of the computer system.
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The document discusses various types of computer output devices. It describes monitors, printers, speakers, and other devices. It provides details on different monitor technologies like LCD, plasma, and CRT. It also explains different printer types such as inkjet, laser, and dot matrix printers. Other output devices covered include projectors, interactive whiteboards, and accessories for games. The document emphasizes that output devices are critical for users to experience and interact with processed data from a computer.
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Computer 1 test prep
- 1. Analog Computing Analog computers measure data on a scale with many values
- 2. Digital Computers • Work with data with a fixed value • Bits = 0 or 1
- 3. Digital Computers Smallest unit = Bit
- 4. Digital Computers Bit Bit Bit Bit Bit Bit Bit Bit = Byte
- 5. Digital Computers Smallest unit = Bit Bit is short for binary digit
- 6. Input Processing Output Storage
- 7. Input = Raw Data entered into a computer
- 9. Input Device - Types Text Audio Graphic Video Keyboard Mouse Scanner Digital Video Camera Digital Camera Microphone Barcode Reader Webcam Touch Screen OCR Scanner Joystick
- 10. Inputting Sound Sound Card • Changes sound from audio to digital • Processes the sound • Reverses process and turns sound back to analog form
- 11. Inputting Still Images Scanner • A lot like a fax machine • Converts pictures to digital files that a computer can read • OCR – Optical Character Recognition Converts image of text to editable text
- 12. Inputting Still Images Digital Camera • Takes image from the lens and makes a digital file readable by a computer • Has a memory card for storage
- 13. Inputting Video Digital Video Camera • Records moving images in digital form • Video Card changes analog video to digital form
- 14. Output Displays results of processing Text Audio Graphic Video
- 15. Output Devices Hardware Can be peripherals
- 16. Output
- 17. 4 Output Device - Types Text Audio Graphic Video Monitor Monitor Monitor Printer Printer Projector Television Headphones Speakers
- 18. Specialized Output Devices • Circuit board • Changes data into electrical currents and send them to the monitor • VRAM is video memory that processes only video Video Adapter
- 19. Specialized Output Devices • Has 2 LCD panels • Sends video images to computer • Virtual reality • CAVE is a virtual reality room Headsets
- 20. Specialized Output Devices • Lets computer read text files aloud • Allows computer to create music Speech Synthesis Software MIDI
- 21. Group Computing • Supercomputers – largest Used by large corporations • Servers Large corporations Small business • Mainframes Mostly Government
- 22. Individual Computing • Workstations Robust and powerful PC used for complex work architects and engineers • Desktop computers • Laptop Computers • Tablets & Smart Phones
- 23. What is Input? • Data words, numbers, images • Software Instructions Performs a job • User Commands Clicking an icon in a software program • Responses Answering a question asked by software
- 24. What is Output? • Results of processing Text Graphics Sound Video
- 25. What Output Device? • Text • Graphics • Video • Audio Monitor Monitor Printer Monitor Printer Television Projector Headphones Speakers