Computer Knowledge

Computer Fundamentals and System Concepts

2,421 Questions

Computer fundamentals and system concepts questions cover core hardware components, operating systems, and historical computer milestones. Topics include the kernel, central processing unit, and basic computing terminology. These foundational questions are strictly essential for scoring well in computer knowledge sections.

Central processing unitComputer operating systemsSupercomputer milestonesSystem registry functionsKernel operationsAndroid applications

Computer Fundamentals and System Concepts Questions

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

The main units of central processing units are _________________________.

  1. arithmetic and logic unit, memory unit, input unit

  2. arithmetic and logic unit, memory unit, output unit

  3. arithmetic and logic unit, memory unit, control unit

  4. arithmetic and logic unit, memory unit, hardware unit
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Central processing unit is the main part of the computer hardware that actually processes data according to instructions it receives. It controls the flow of data by directing the data to enter the system, places the data into its memory, retrieves the same as and when needed and directs the output of data according to a set of stored instructions. It has three main units as: Arithmetic and Logic unit (ALU), Memory unit, Control unit.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

_______ unit is entrusted with the responsibility of controlling and coordinating the activities of all other units of the computer system.

  1. Arithmetic and logic

  2. Memory

  3. Control

  4. Central
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The control unit is entrusted with the responsibility of controlling and coordinating the activities of all other units of the computer system. Specifically, it performs the following functions:
a. Read instructions out of memory unit;
b. Decode such instructions;
c. set up the routing of data, through internal circuitry/wiring to the desired place at right time; and
d. Determine the input device from where to get next instructions after the instructions in hand has been executed.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

For, a set of instruction need to be made available to user in a human readable and understandable form computer system need ________________.

  1. input unit

  2. output unit

  3. central processing unit

  4. control unit
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

After processing the data, the information produced according to a set of instruction need to be made available to user in a human readable and understandable form. A computer system, therefore needs an output device to communicate such information to the user. Essentially, the output device is assigned the task of translating the processed data from machine coded form to a human readable form.  

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

Which of the following task done by Central processing unit?
a. Read instructions out of memory unit;
b. Encode such instructions;
c. Translating the processed data from human coded form to machine readable form.

  1. Only 1, 2

  2. Only 1, 3

  3. Only 2, 3

  4. All 1, 2, 3
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The control unit is entrusted with the responsibility of controlling and coordinating the activities of all other units of the computer system. Specifically, it performs the following functions:
a. Read instructions out of memory unit;
b. Decode such instructions;
c. set up the routing of data, through internal circuitry/wiring to the desired place at right time; and
d. Determine the input device from where to get next instructions after the instructions in hand has been executed.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

External devices like monitor also called ______.

  1. Central processing unit (CPU)

  2. Algorithmic and logic unit (ALU)

  3. Visual display unit (VDU)

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The output device is assigned the task of translating the processed data from machine coded form to a human readable form. The commonly used output devices include: external devices like monitor also called as Visual Display Unit (VDU), printer, graphic plotter for producing graphs etc.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

__________ is the brain of the computer.

  1. ALU

  2. VDU

  3. CPU

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Central processing unit is the main part of the computer hardware that actually processes data according to instructions it receives. It controls the flow of data by directing the data to enter the system, places the data into its memory, retrieves the same as and when needed and directs the output of data according to a set of stored instructions. Hence, CPU is also called as brain of computer.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

________ are among the earliest computerised systems catering to the requirements of large business enterprises.

  1. Central Processing Unit (CPU)

  2. Transaction Processing System (TPS)

  3. Arithmetic and Logic Unit (ALU)

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Transaction Processing Systems (TPS) are among the earliest computerised systems catering to the requirements of large business enterprises. The purpose of typical TPS is to record, process, validate and store transactions that occur in the various functional area of a business for subsequent retrieval and usage.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

An integrated set of specialized programmes that are meant to manage the resources of a computer and also facilitate its operation is called __________.

  1. utility programmes

  2. application software

  3. system software

  4. operating system
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An operating system is the primary system software that manages computer hardware and software resources, providing common services for computer programs.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

Operating system creates a necessary interface that is an interactive link between the ______ and the _________.

  1. user, computer software

  2. user, computer hardware

  3. data, computer software

  4. people, computer hardware
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The operating system serves as an intermediary between the user and the computer hardware, allowing users to interact with the machine without needing to understand low-level hardware operations.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

Connectivity is acknowledged as a _________ element of the computer system.

  1. fourth

  2. fifth

  3. sixth

  4. seventh
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In many standard information systems frameworks, the six elements are hardware, software, data, procedures, people, and connectivity (or network).

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

____________ is responsible for performing all the arithmetic computations such as addition, subtraction, division, multiplication and exponentiation.

  1. Memory unit

  2. Control unit

  3. Arithmetic and Logic unit

  4. Both a and b
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Arithmetic and Logic Unit (ALU) is the part of the CPU responsible for performing all mathematical calculations and logical operations.

Multiple choice elements of accounts overview of computerised accounting system accounting software concepts and types of computerized accounting system types of accounting software

Central processing unit has ________ main units.

  1. two

  2. three

  3. four

  4. five
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The three logical units that make up the central processing unit are the arithmetic and logic unit (ALU), main storage, and the control unit. Main storage retains active programs and data. It is relatively expensive, so secondary storage is used to store programs and data until they are needed in main storage.

Multiple choice business organisation and correspondence meaning and factors of business environment dimensions of business environment business environment and its dimensions business environment

Which of the following represent example of general, application and user controls activities, respectively,in the computer environment?

  1. Control over access to programs, computer exception reports, and manual checks of computer output

  2. Manual checks of computer output, control over access to programs and computer exception reports,

  3. computer exception reports, control over access to programs, and manual checks of computer output

  4. Manual checks of computer output, computer exception reports and control over access to programs
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Control over access to programs, computer exception reports, and manual checks of computer output represent example of general, application and user controls activities, respectively in the computer environment. All the computer-based activities are related with the computer environment.

Multiple choice

What is not a function of the CPU?

  1. Addition

  2. Allocating memory to applications

  3. Processing graphical information

  4. Storing data long-term
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The CPU performs arithmetic, logic, and control operations. Long-term data storage is handled by secondary storage devices like hard drives or SSDs, not the CPU itself.