1. Computers gather data, which means they allow users to __________ data ?

present

store

output

input

Answer: input

Explanation:

The correct answer is (d) input. Computers gather data by allowing users to input or enter data into the system. This can be done through various input devices such as a keyboard, mouse, microphone, scanner, or camera. Once the data is entered, the computer can then process and store the data for later use or output the data in a useful format such as text, images, or charts. Therefore, options (a), (b), (c), and (e) are incorrect, and the correct answer is option (d) input.


2. A desktop computer is also known as _________ ?

Palm Pilot

PC

laptop

mainframe

Answer: PC

Explanation:

The correct answer is (b) PC, which stands for Personal Computer. A desktop computer is a type of computer that is designed to be used on a desk or table and consists of a separate monitor, keyboard, and processing unit. It is a type of PC that is designed for use in a fixed location, rather than being portable like a laptop or handheld device like a Palm Pilot. Therefore, option (a), (c), and (d) are incorrect.


3. What is an embedded system ?

A program that comes wrapped in a box.

A program that is permanent part of a computer

A computer that is part of a larger computer

A computer and software system that controls a machine or appliance

Answer: A computer and software system that controls a machine or appliance

Explanation:

An embedded system is a computer and software system that controls a machine or appliance, and is typically designed for a specific function within a larger system. It is embedded within the device it controls and is not intended to be reprogrammed or updated by the end user.


4. Analog computer works on the supply of ?

continuous electrical pulses

Electrical pulses but not continuous

Magnetic strength

Physical strength

Answer: continuous electrical pulses

Explanation:

An analog computer works on the supply of continuous electrical pulses. Analog computers use continuous signals or measurements, such as electrical voltages, to represent and manipulate data. These signals can be amplified, filtered, and combined using analog circuits to perform mathematical operations and other computations. Unlike digital computers, which use discrete signals and binary logic to process data, analog computers are better suited for tasks that involve continuous, real-world phenomena such as physics, engineering, and control systems.


5. Which of the following is not the major function of a computer ?

Processing data into information

Storing data or information

Gathering data

None of these

Answer: None of these

Explanation:

The correct answer is (e) None of these.


6. Computers manipulate data in many ways, and this manipulation is called ?

upgrading

processing

batching

utilising

Answer: processing

Explanation:

The correct answer is (b) processing. Processing refers to the manipulation of data by a computer system to perform various operations and tasks. This can include performing calculations, sorting and organizing data, executing programs, and many other functions. Upgrading, batching, utilizing, and downloading are all related to various aspects of computer use, but they do not specifically refer to the manipulation of data. Therefore, options (a), (c), (d) are incorrect.


7. Compatibility in regard to computers refers to ?

the software doing the right job for the user

it being versatile enough to handle the job

the software being able to run on the computer

software running with other previously installed software

Answer: software running with other previously installed software

Explanation:

Compatibility in regard to computers refers to software running with other previously installed software.


8. Every computer has a(n) __________; many also have __________ ?

operating system; a client system

operating system; instruction sets

application programs; an operating system

operating system; application programs

Answer: operating system; application programs

Explanation:

Every computer has an operating system; many also have application programs.


9. The computer’s capability of distinguishing spoken words is called ?

voice analysis

speech acknowledgment

voice recognition

speech interpretation

Answer: voice recognition

Explanation:

The computer’s capability of distinguishing spoken words is called voice recognition.


10. Which of the following refers to the fastest, biggest and most, expensive computers ?

Notebooks

Personal Computers

Laptops

Supercomputers

Answer: Supercomputers

Explanation:

Supercomputers refer to the fastest, biggest, and most expensive computers. They are specifically designed to perform complex calculations at incredibly high speeds, making them ideal for scientific research, weather modeling, and other applications that require massive amounts of data processing.