components of computer

Question 1

3 important components of computer

Answer 1

Input Unit
Central Processing Unit(CPU)
Output Unit

Question 2

consists of input devices that are attached to the computer. These devices take input and convert it into binary language that the computer understands.

Answer 2

input unit

Question 3

called the brain of the computer. It first fetches instructions from memory and then interprets them so as to know what is to be done.

Answer 3

central processing unit

Question 4

performs mathematical calculations and makes logical decisions.

Answer 4

arithmetic and logic unit

Question 5

coordinates and controls the data flow in and out of the CPU, and also controls all the operations of ALU, memory registers, and also input/output units.

Answer 5

control unit

Question 6

consists of output devices that are attached to the computer. It converts the binary data coming from the CPU to human understandable form

Answer 6

output unit

Question 7

It refers to the physical and tangible components of the computer system.

Answer 7

hardware

Question 8

executes all the instructions and it is considered the brain of the computer system.

Answer 8

CPU

Question 9

It stores data and instructions before the execution and the processed data as well.

Answer 9

memoryy

Question 10

types of memory

Answer 10

internal (RAM, ROM)
external (secondary)

Question 11

It is a volatile type of memory referred to as Main Memory or Primary Memory.

Answer 11

random access memory

Question 12

contains permanently stored instructions that cannot be changed.

Answer 12

read-only memory

Question 13

Also known as Auxiliary Memory. It is a non-volatile type of memory that is responsible for keeping files permanently

Answer 13

secondary memory

Question 14

allows communication between the computer and its outside world via input and output devices.

Answer 14

Input and output devices

Question 15

It is an electronic circuit that sends data and messages between the other components.

Answer 15

bus

Question 16

It is an electronic circuit that sends data and messages between the other components.

Answer 16

ports

Question 17

It is an electronic circuit that sends data and messages between the other components.

Answer 17

expansion slots

Question 18

These are special temporary storage that quickly accepts, stores, and transfers data and instructions for immediate use.

Answer 18

registers

Question 19

it accepts or collects data and converts it into a form suitable for processing.

Answer 19

input hardware

Question 20

It is the most commonly used input device.

Answer 20

keyboard

Question 21

It consists of a keyboard, a video display screen, and a communication line to a mainframe computer.

Answer 21

terminals

Question 22

three types of terminal

Answer 22

Dumb
Smart
Intelligent

Question 23

terminal used only to input data to and receive information from a computer system

Answer 23

dumb

Question 24

terminal that can do input and output and has some limited processing capability.

Answer 24

smart

Question 25

a fledge microcomputer with a communication link.

Answer 25

intelligent terminal

Question 26

a pointing device that allows you to control an on-screen cursor

Answer 26

mouse

Question 27

the upside-down version of the mouse. A ball mounted in the box is rolled with the fingers to move the cursor.

Answer 27

trackball

Question 28

a video display screen that picks up input from the user through the touch of a finger.

Answer 28

joystick

Question 29

–It is a point-and-draw input device that allows you to draw directly on the screen.

Answer 29

lightpen

Question 30

a pen-like device with which the user “sketches” an image or puck.

Answer 30

digitizing pen

Question 31

a pen-like stylus to enter handwriting and marks into a computer.

Answer 31

pen-based systems

Question 32

It translates images of text, drawings, photos, and the like into forms of data that can be understood by the computer.

Answer 32

scanning devices

Question 33

photoelectric scanners that translate the bar code symbols into digital forms

Answer 33

bar code readers