1. Which term refers to the physical components of a computer system ?
Correct : C
Explanation: Hardware is the physical parts of a computer system that enable functions like input, output, storage, communication, and processing. Hardware includes the case, central processing unit, random access memory, monitor, mouse, keyboard, computer data storage, graphics card, sound card, speakers, and motherboard.
2. The first generation of computers used which components for processing and storage ?
Correct : B
Explanation: Vaccum tube is used in 1st generation computers. A vacuum tube is an electronic device that controls electric current flow in a high vacuum between electrodes. Vacuum tubes are also called electron tubes, valves, or tubes.
3. The Arithmetic and Logic Unit of computer respond to command coming from _
Correct : B
Explanation: A control unit (CU) is a component of a computer's central processing unit (CPU) that directs and coordinates the operation of all other parts of the computer. It manages the flow of instructions and data between various components.
4. The saving of data and instruction to make them available for later use is a job of :
Correct : D
Explanation: Storage Unit is responsible for storing instruction and make them availabe for use later.
5. Data entered into computer through keyboard and mouse is an example of :
Correct : D
Explanation: Direct input mean a device, such as a keyboard, used to insert data directly into a computerized system.
6. Which among the following is not a pointing device ?
Correct : B
Explanation: A digitizer is a device that receives, processes, and records analog information in digital form. For example, a digital camera is a digitizer because it converts analog light information into a digital picture.
7. Computer's basic architecture was developed by
Correct : A
Explanation: The basic architecture of a computer was developed by John von Neumann, a mathematician and physicist. The von Neumann architecture, also known as the von Neumann model or Princeton Architecture, is the foundation of modern computer design.
8. Which of the following technology was used in third generation computers ?
Correct : D
Explanation: Integrated circuits (ICs) were first used in the third generation of computers, which lasted from 1964–1971. The IC was invented by Jack Kilby.
9. Which of the following is not an input device ?
Correct : C
Explanation: Monitor is a output device which is used to display the information on it.
10. The CPU of a computer is made up of the following components :
Correct : A
Explanation: CPU consists of an arithmetic and logic unit (ALU), a control unit, and various registers.
11. IP address stands for :
Correct : A
Explanation : An Internet Protocol (IP) address is a unique numerical identifier for every device or network that connects to the internet.
12. Which component of a computer is responsible for executing arithmetic and logic operations ?
Correct : C
Explanation: The ALU performs simple addition, subtraction, multiplication, division, and logic operations.
13. The first mechanical computer designed by Charles Babbage was called ?
Correct : B
Explanation: Analytical Engine, generally considered the first computer, designed and partly built by the inventor Charles Babbage in the 19th century.
14. Speed of third generation computers was measured in
Correct : C
Explanation: Third-generation computers had speeds of around 100 nanoseconds. They were smaller, faster, and more efficient than transistor computers.
15. Artificial intelligence is an example of
Correct : D
Explanation: Artificial intelligence (AI) is the intelligence of machines and software, as opposed to humans and animals. It is a field of study in computer science that develops and studies intelligent machines.
16. A _____ is a large and expensive computer capable of performing scientific and business applications.
Correct : C
Explanation: A supercomputer is a large and expensive computer that is capable of performing scientific and business applications.
17. Analog computer works on the supply of
Correct : D
Explanation: Analog computers work on the supply of continuous electrical pulses. These continuous pulses enable analog computers to perform real-time calculations.
18. Seismograph is an example of
Correct : A
Explanation: A seismograph is an example of an analog computer. Analog computers work on continuous electrical pulses.
19. What is the primary function of a Central Processing Unit (CPU) ?
Correct : C
Explanation: CPU is the brain of computer where all or most of calculations take place. It consists of an arithmetic and logic unit (ALU), a control unit, and various registers.
20. What is the role of the BIOS (Basic Input/Output System) in a computer ?
Correct : D
Explanation: BIOS (basic input/output system) is the program a computer's microprocessor uses to start the computer system after it is powered on.