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This article mainly introduces whether the input and output devices in the computer are devices used to store programs and data. What is introduced in this article is very detailed and has a certain reference value. Interested friends must finish reading it!

Input and output devices are not devices used to store programs and data, storage devices are. The input device is the device that inputs data and information to the computer; the output device is the terminal device of the computer hardware system, which is used to display all kinds of calculation result data or information in the form of numbers, characters, images, sounds and so on. A storage device is a device for storing information.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

Input and output devices are not devices used to store programs and data, storage devices are.

The input and output device (IO device) is one of the key external devices of the data processing system, which can be used interactively with the computer ontology.

Input device

The input device is the device that inputs data and information to the computer, the bridge of communication between the computer and the user or other equipment, and one of the main devices for information exchange between the user and the computer system. The task of the input device is to send data, instructions and some logo information to the computer. Keyboard, mouse, camera, scanner, stylus, handwriting board, joystick, voice input device and so on all belong to input devices (Input Device). It is a device for people or externally to interact with the computer, which is used to input the original data and the programs that process the data into the computer.

The computer can receive all kinds of data, which can be either numerical data or non-numerical data, such as graphics, images, sound, etc., which can be input to the computer through different types of input devices for storage, processing and output. The input devices of computers can be divided into the following categories according to their functions:

● character input device: keyboard

● optical reading equipment: optical mark reader, optical character reader

● graphics input device: mouse, joystick, stylus

● image input equipment: digital camera, scanner, fax machine

● analog input device: language analog-to-digital conversion recognition system.

(such as photoelectric paper tape input device, card input device, optical character reader, magnetic tape input equipment, Chinese character input equipment, mouse, etc.) send data, programs and control information into the computer.

Output equipment

The output device (Output Device) is the terminal device of the computer hardware system, which is used to receive the output display, print, sound, control the operation of peripheral equipment and so on. It also shows all kinds of calculation result data or information in the form of numbers, characters, images, sounds and so on. The common output devices are display, printer, plotter, image output system, voice output system, magnetic recording equipment and so on.

Storage Devic

A storage device is a device used to store information, which is usually digitized and then stored in electrical, magnetic or optical media.

Common storage devices

1. Devices that use electric energy to store information, such as various kinds of memory, such as RAM, ROM, etc.

2. Devices that use magnetic energy to store information such as hard disk, floppy disk (obsolete), magnetic tape, core memory, magnetic bubble memory (bubble memory appeared in the 1970s, but failed to achieve commercial success when the price of hard disk fell sharply in the 1980s. ), USB flash drive

3. Devices that use optical means to store information, such as CD or DVD

4. Devices that use magneto-optical means to store information, such as MO (Magneto-Optical disk)

5. Devices that use other physical objects such as paper cards and paper tapes to store information, such as punch cards, punch straps, knots, etc.

6. Dedicated storage system: a special information system for data backup or disaster recovery, a device that uses high-speed network to store a large amount of data.

The above is all the contents of the article "are the input and output devices in the computer used to store programs and data?" Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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