Computer Science Questions and Answers

Operating system controls the way in which the computer system functions and provides a means by which users can interact with the computer

In computer architecture, the system bus is the main communication route that connects the major components of a computer system, such as the CPU, memory, and input/output devices. It is composed of the data bus, address bus, and control bus. Therefore, the correct answer is 'system bus'.

Using Boolean identities, the given Boolean expression A(A+1) + A(B+0) + C.1 can be reduced as follows: A.1 + A.B + C = A + A.B + C = A + C. The Boolean identity A + A.B = A is used here, which states that if A is true, the whole expression is true regardless of the value of B.

The first stage of data processing is the collection or gathering of data and recording it in a usable form

Ways of preventing virus
- use of antivirus software
- use of firewall
- exercising care in giving out personal and vital information
- encryptions

Algorithm design is the process of listing all the instructions which are to be performed by the computer at different stages

High level languages give formats close to English language and the purpose of developing high level language is to enable people to write programs easily and in their own native language environment

The memory unit of the CPU stores instructions, data, and intermediate results. The control unit controls the operation of the CPU and hence the computer. The arithmetic section performs arithmetic operations like addition, subtraction, multiplication, and division. The logic section performs logical operations like comparison of values

Micro computers are small and low cost digital computers, which usually consists of a micro-processor, a storage unit, an input channel and an output channel

REM is an abbreviation for remark and it's the way you add comments to your code in BASIC