1. The most common input devices include ?

Monitor and keyboard

Monitor and mouse

Monitor and keyboard

Printer and mouse

Answer: Monitor and keyboard

Explanation:

The most common input devices include the keyboard and mouse. The keyboard allows the user to input text and commands by pressing keys, while the mouse allows the user to control the movement of the cursor and select items on the screen. While the monitor is an output device that displays information and images, it is not an input device. The printer is also an output device that produces hard copies of documents and images. Therefore, option (c) "Keyboard and mouse" is the most appropriate choice.


2. What type of resource is most likely to be a shared common resource in a computer network ?

Printers

Speakers

Floppy disk drives

Keyboards

Answer: Printers

Explanation:

Printers are most likely to be a shared common resource in a computer network. In a networked environment, it is common for multiple users to need to print documents, and it would be impractical for each user to have their own dedicated printer. Therefore, printers are often shared resources in a networked environment. While other resources such as speakers, floppy disk drives, and keyboards can also be shared in a networked environment, printers are more commonly shared. Option (a) is therefore the correct answer.


3. A __________ is an example of an input device ?

keyboard

monitor

Mouse

central processing unit

Answer: keyboard

Explanation:

Option (a) keyboard is an example of an input device, as it allows the user to input information into the computer system.


4. The output which is made up of pictures, sounds, and video is called ?

COM

hard copy

graphics

multimedia

Answer: multimedia

Explanation:

multimedia


5. Access control based on a persons fingerprints is an example of ?

biometric identification

characteristic identification

fingerprint security

logistics

Answer: biometric identification

Explanation:

A biometric identification.


6. A __________ is an example of an input device ?

printer

monitor

scanner

central processing unit

Answer: scanner

Explanation:

Scanner is an example of an input device


7. The ALU performs _________ operations ?

logic

ASCII

algorithm-based

logarithm-based

Answer: logic

Explanation:

The ALU performs logic operations


8. ALU works on the instructions and data held in the ?

Notebook

Registers

Copy Pad

I/O devices

Answer: Registers

Explanation:

computer's registers. The registers are a part of the computer's CPU


9. The main job of a CPU is to __________ ?

carry out program instructions

store data/information for future use

process data and information

Both (a) and (c)

Answer: Both (a) and (c)

Explanation:

The correct answer is (d) Both (a) and (c). The main job of a CPU (Central Processing Unit) is to carry out program instructions and process data and information. The CPU fetches program instructions from memory, decodes them to understand what operation needs to be performed, performs the operation using its Arithmetic Logic Unit (ALU), and stores the result back in memory. In addition to executing program instructions, the CPU also processes data and information by performing mathematical calculations, logical operations, and data manipulations. It does so by accessing data stored in memory or registers, performing operations on it using the ALU, and storing the result back in memory or registers. Storing data/information for future use is the role of memory devices such as RAM (Random Access Memory) and hard drives, and it is not the primary function of the CPU.


10. A means of capturing an image (drawing or photo) so that it can be stored on a computer is ?

Modem

Software

Scanner

Keyboard

Answer: Scanner

Explanation:

The correct answer is (c) Scanner.