Computer

Total Questions: 50

11. C.P.U. consists of_________. [S.S.C. Online Graduation Level (T-1) 9.09.2016 (Shift-III)]

(a) Arithmetic and Logical unit and Register
(b) Arithmetic and Logical Unit, Register and Control Unit
(c) System Unit and Memory
(d) Hard Disk and Control Unit

Correct Answer: (b) Arithmetic and Logical Unit, Register and Control Unit

Solution:

C.P.U. (Central Processing Unit) consists of three main components:

Component	Function
Arithmetic Logic Unit (ALU)	Executes arithmetic and logical operations
Control Unit (CU)	Manages and coordinates the activities of the CPU
Registers	Temporarily stores data and instructions for quick access

Some sources may also mention additional supporting elements like the system clock, buses, and cache memory, but the core components of the CPU are the ALU, Control Unit, and Registers.

12. Which computer unit is considered the Computer's brain? [S.S.C. Online CHSL (T-1) 18.03.2020 (Shift-III)]

(a) Output Unit
(b) CPU
(c) Input Unit
(d) Memory Unit

Correct Answer: (b) CPU

Solution:The CPU is the brain of a computer, containing all the circuitry needed to process input, store data, and output results. The CPU is constantly following instructions from computer programs that tell it which data to process and how to process it. Without a CPU, we could not run programs on a computer.

13. Which of the following is also known as the brain of the computer? [S.S.C. Online CHSL (T-1) 11.01.2017 (Shift-11) S.S.C. JE Civil Exam 23.03.2021 (Shift-11) C.P.O. S.I. 5.06.2016 (Shift-1)]

(a) CPU
(b) ALU
(c) Keyboard
(d) Motherboard

Correct Answer: (a) CPU

14. Which of the following is a part of the central processing unit of a computer? [S.S.C. Online CHSL (T-I) 11.08.2021 (Shift-1)]

(a) Mouse
(b) Scanner
(c) Joystick
(d) Memory registers

Correct Answer: (d) Memory registers

Solution:A memory register or register is a type of computer memory used by the Central Processing Unit (C.P.U.) to quickly accept, store, and transfer data and instructions to be used immediately.

15. The speed of the Central Processing Unit (CPU) is measured in _________ which represents a CPU cycle. [S.S.C. Online CHSL (T-1) 18.03.2020 (Shift-II)]

(a) Kilobyte (KB)
(b) Hertz (Hz)
(c) Gigabyte (GB)
(d) Terabyte (TB)

Correct Answer: (b) Hertz (Hz)

Solution:The CPU is made up of three main components, the control unit, the immediate access store and the arithmetic and logic unit. The speed of a CPU is measured in hertz (Hz). The clock speed is measured in cycles per second, and one cycle per second is known as I hertz.

16. In a computer, which unit is responsible for processing data and is also called the electronic brain of the computer? [S.S.C. Online CHSL (T-I) 12.10.2020 (Shift-1)]

(a) Central Processing Unit (CPU)
(b) Keyboard
(c) Hard Disk
(d) RAM

Correct Answer: (a) Central Processing Unit (CPU)

Solution:The Central processing unit (CPU) also called the brain of computer, is responsible for processing data. In a computer the processor is the centre of activity. The processor, as we noted, is also called the central processing unit (CPU). The central processing unit consists of electronic circuits that interpret and execute program instructions, as well as communicate with the input, output, and storage devices.

17. Which of the following is an input device? [S.S.C. Online Stenographer 14.09.2017 (Shift-2)]

(a) Printer
(b) Headphones
(c) Monitor
(d) Scanner

Correct Answer: (d) Scanner

Solution:Among the given options, the scanner is an input device while the rest of the others are output devices. The scanner inserts data into the computer's memory in image form, which can be retrieved by the printer.

18. Which of the following is an input device that utilises a light-sensitive detector to select objects on a display screen? [S.S.C. Online CHSL (T-1) 18.03.2020 (Shift-II)]

(a) Optical Mark Recognition (OMR)
(b) Light Pen
(c) Magnetic Ink Character Recognition (MICR)
(d) Bar Code Reader

Correct Answer: (b) Light Pen

Solution:A Light Pen utilizes a light-sensitive detector to select objects on a display screen. A light pen is similar to a mouse, except with a light pen, you can move the pointer and select objects on the display screen by directly pointing to the objects with the pen.

19. The first programming language was ________ . [S.S.C. Online CHSL (T-1) 7.01.2017 (Shift-III)]

(a) Perl
(b) FORTRAN
(c) Visual Basic
(d) C

Correct Answer: (b) FORTRAN

Solution:FORTRAN is the first recognized programming language, which was designed by IBM for scientific computing purposes. John Backus developed Fortran, or Formula Translator, one of the first general-purpose, high-level computer programming languages.. FORTRAN is a short form of Formula Translation

20. Who created FORTRAN - the first high-level computer programming language? [S.S.C. Online CHSL (T-1) 11.08.2021 (Shift-III)]

(a) Marc Andreessen
(b) Larry Ellison
(c) John Backus
(d) Dan Bricklin

Correct Answer: (c) John Backus

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