Explanation

• Multi-tasking provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously.
• The operating system manages CPU time, memory, and other resources among the running tasks.

Additional information:

• Multiprocessing refers to using two or more processors/CPU cores to execute processes.
• Multithreading allows multiple threads within a process to execute concurrently.
• Multicomputing involves using multiple separate computers or computing systems.

Last verified on 10-08-2026

Explanation

• The ALU (Arithmetic Logic Unit) is the core component of the CPU.
• It performs both arithmetic operations (calculations) and logical operations (comparisons).
• Without ALU, a computer cannot process data.
• ALU works together with the Control Unit (CU).

Last verified on 06-05-2026

Explanation

Sectors: A track is a circular path on a hard disk.

- Each track is divided into sectors.

- A sector is the smallest addressable unit of a traditional disk.

Last updated 09 Nov 2026 by NA

Explanation

The three major DVD formats are:

1. DVD-ROM: Read-only.

2. DVD-R / DVD+R: Recordable (write once).

3. DVD-RW / DVD+RW: Rewritable (erase and record again).

Last updated 06 Nov 2026 by NA

Explanation

• A printer is an output device that transfers digital information from a computer onto a physical medium, most commonly paper. 

Additional information:

Scanner:

Used to digitize physical documents or images, converting them into digital data.

Monitor:

An output device that displays visual information from a computer, but it does not produce physical copies on paper.

Keyboard:

An input device used to enter text and commands into a computer. 

Last updated by NA on 05-11-2026