Independent work. I term. Ict companies and organizations. Prepare a ppt presentation


Computer input and output devices



Yüklə 1,24 Mb.
səhifə21/23
tarix27.11.2022
ölçüsü1,24 Mb.
#70845
1   ...   15   16   17   18   19   20   21   22   23
Mustaqil ta'lim hemisga

Computer input and output devices.

Task 1. Look through the information about computer input and output devices and prepare a presentation about them. You can use given materials, if you want.
An input/output device, often known as an IO device, is any hardware that allows a human operator or other systems to interface with a computer. Input/output devices, as the name implies, are capable of delivering data (output) to and receiving data from a computer (input).
An input/output (I/O) device is a piece of hardware that can take, output, or process data. It receives data as input and provides it to a computer, as well as sends computer data to storage media as a storage output.
There are many IO Devices available, some of them are:

Input Devices

Keyboard


The keyboard is the most frequent and widely used input device for entering data into a computer. Although there are some additional keys for performing other operations, the keyboard layout is similar to that of a typical typewriter.
Generally, keyboards come in two sizes: 84 keys or 101/102 keys, but currently keyboards with 104 keys or 108 keys are also available for Windows and the Internet.



Types of Keys

  • Numeric Keys: It is used to enter numeric data or move the cursor. It usually consists of a set of 17 keys.

  • Typing Keys: The letter keys (A-Z) and number keys (09) are among these keys.

  • Control Keys: These keys control the pointer and the screen. There are four directional arrow keys on it. Home, End, Insert, Alternate(Alt), Delete, Control(Ctrl), etc., and Escape are all control keys (Esc).

  • Special Keys: Enter, Shift, Caps Lock, NumLk, Tab, etc., and Print Screen are among the special function keys on the keyboard.

  • Function Keys: The 12 keys from F1 to F12 on the topmost row of the keyboard.

Mouse


The most common pointing device is the mouse. The mouse is used to move a little cursor across the screen while clicking and dragging. The cursor will stop if you let go of the mouse. The computer is dependent on you to move the mouse; it won’t move by itself. As a result, it’s an input device. A mouse is an input device that lets you move the mouse on a flat surface to control the coordinates and movement of the on-screen cursor/pointer.The left mouse button can be used to select or move items, while the right mouse button when clicked displays extra menus.



Yüklə 1,24 Mb.

Dostları ilə paylaş:
1   ...   15   16   17   18   19   20   21   22   23




Verilənlər bazası müəlliflik hüququ ilə müdafiə olunur ©azkurs.org 2024
rəhbərliyinə müraciət

gir | qeydiyyatdan keç
    Ana səhifə


yükləyin