AI News, BOOK REVIEW: Difference between revisions of "What is a computer?"
- On 4. oktober 2018
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Difference between revisions of "What is a computer?"
computer is an electronic device that takes input such as numbers, text, sound, image, animations, video, etc., processes it, and converts it into meaningful information that could be understood, presenting the changed input (processed input) as output.
All numbers, text, sound, images, animations, and video used as input are called data, and all numbers, text, sound, images, animations, and video returned as output are called information. Input
basic computer consists of 4 components: an input device , a CPU, output devices, and memory.
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Peripheral device, also known as peripheral, computer peripheral,input-output device, or input/output device, any of various devices (including sensors) used to enter information and instructions into a computer for storage or processing and to deliver the processed data to a human operator or, in some cases, a machine controlled by the computer.
Another direct-entry mechanism is the optical laser scanner (e.g., scanners used with point-of-sale terminals in retail stores) that can read bar-coded data or optical character fonts.
Output equipment includes video display terminals, ink-jet and laser printers, loudspeakers, headphones, and devices such as flow valves that control machinery, often in response to computer processing of sensor input data.
Most auxiliary storage devices—as, for example, CD-ROM and DVD drives, flash memory drives, and external disk drives also double as input/output devices (see computer memory).
Even devices such as smartphones, tablet computers, and wearable devices like fitness trackers and smartwatches can be considered as peripherals, albeit ones that can function independently.
What is the difference between an input and output device?
An input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing.
Input devices only allow for input of data to a computer and output devices only receive the output of data from another device.
Most devices are only input devices or output devices, as they can only accept data input from a user or output data generated by a computer.
In the lower half of the image, the computer sends, or outputs, data to a printer, which will print the data onto a piece of paper, also considered output.
- On 23. september 2021
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