1. __________ provides the means to move the pointer on the screen and give information to computer by clicking its buttons ?

Scanner

Mouse

Keyboard

Program

Answer: Mouse

Explanation:

Mouse


2. A hard copy of a document is __________ ?

printed on the printer

stored on a floppy

stored on a CD

stored in the hard disk

Answer: printed on the printer

Explanation:

A hard copy of a document is printed on the printer


3. Which of the following is considered an input device ?

Keyboard

Monitor

Floppy disk

Printer

Answer: Keyboard

Explanation:

Keyboard is considered an input device as it allows the user to input information into the computer system.


4. Scanner scans ?

Picture

Text

Both Picture and Text

Neither Picture Nor Text

Answer: Both Picture and Text

Explanation:

A scanner can scan both pictures and text. A scanner is an input device that can capture images and documents in various formats, including photographs, illustrations, and text documents. The scanner uses light sensors to detect the colors and patterns of the image or text and then converts that information into a digital format that can be saved and manipulated on a computer


5. Most of the commonly used personal computers/ laptops do not have a command key known as _________ ?

Turnover

Shift

Alter

Delete

Answer: Turnover

Explanation:

Turnover is not a command key found on personal computers/laptops. The commonly used command keys on personal computers/laptops are Shift, Alt, Ctrl, Delete, and Insert.


6. What is equipment used to capture information and commands ?

Output device

Input device

Storage device

Telecommunication device

Answer: Input device

Explanation:

An input device is the equipment used to capture information and commands from the user and send them to the computer. Examples of input devices include keyboard, mouse, touchpad, scanner, microphone, webcam, and joystick. These devices allow the user to interact with the computer and input data, commands, and instructions.


7. A CPU contains __________ ?

a card reader and a printing device

an analytical engine and a control unit

a control unit and an arithmetic logic unit

an arithmetic logic unit and a card reader

Answer: a control unit and an arithmetic logic unit

Explanation:

A CPU (Central Processing Unit) contains a control unit and an arithmetic logic unit. The control unit manages the flow of data and instructions within the CPU and between the CPU and other components of the computer system. The arithmetic logic unit performs arithmetic and logical operations on the data processed by the CPU. A CPU does not contain a card reader, printing device, or an analytical engine. Therefore, option (c) "a control unit and an arithmetic logic unit" is the correct answer.


8. The function of CPU is ?

to provide external storage of text

to communicate with the operator

to read, interpret and process the information and instruction

to provide a hard copy

Answer: to read, interpret and process the information and instruction

Explanation:

The function of CPU (Central Processing Unit) is to read, interpret and process the information and instructions provided to it by the user or a software program. Therefore, the correct option is (c) to read, interpret and process the information and instruction.


9. Which of the following could be digital input devices for computers ?

Digital camcorder

Microphone

Scanner

All of the above

Answer: All of the above

Explanation:

All of the above (Digital camcorder, Microphone, Scanner) could be digital input devices for computers.


10. The part of the CPU that accesses and decodes program instructions, and coordinates the flow of data among various system components is the ?

ALU

control unit

megahertz

motherboard

Answer: control unit

Explanation:

The correct answer is (b) control unit. The control unit is a component of the Central Processing Unit (CPU) that is responsible for accessing and decoding program instructions, and coordinating the flow of data among various system components. It is also responsible for controlling the operations of other parts of the CPU, such as the Arithmetic Logic Unit (ALU) and the registers.