Explanation

• Ctrl + V is the shortcut key used to paste copied or cut text.

Additional information:

• Ctrl + C — Copy
• Ctrl + X — Cut
• Ctrl + Z — Undo
• Ctrl + A — Select All

Last verified on 23-08-2026

Explanation

• A Cell is the intersection of a row and a column in a spreadsheet such as MS Excel.
• Each cell has a unique cell address, such as A1, B5, or C10.
• Rows are identified by numbers: 1, 2, 3, ...
• Columns are identified by letters: A, B, C, ...
• A cell can contain text, numbers, formulas, or functions.

Last verified on 09-08-2026

Explanation

• The CPU (Central Processing Unit) is the brain/heart of the computer.
• It processes data and executes instructions.
• It controls other parts of the system.

Additional information:

• First commercial CPU: Intel 4004 (1971)
• Invented by: Italian physicist Federico Faggin
• CPU Examples: Clock speeds – 3.0 GHz, 3.5 GHz, 4.0 GHz, 4.5 GHz, 5.0 GHz

Last updated by NA on 09-09-2026

Explanation

• PowerPoint is used for Create presentations from scratch or a template.
• Add text, images, art, and videos.
• Select a professional design with PowerPoint Designer.

Last verified on 03-04-2026

Explanation

• Primary storage, also known as main storage or memory.
• It is the area in a computer in which data is stored for quick access by the computer's processor.
• The terms random access memory (RAM) and memory are often as synonyms for primary or main storage.

Last verified on 10-08-2026

Explanation

• A physical connection between the microprocessor memory and other parts of the microcomputer is known as an address bus.

Additional information:

• Address Bus carries the addresses of memory locations or I/O devices.
• Data Bus carries actual data between the CPU, memory, and other components.
• Control Bus carries control and timing signals.

Last verified on 10-08-2026

Explanation

• The =NOW() function in MS Excel returns the current date and time.
• It is updated automatically whenever the worksheet is opened or calculations are performed.

Additional information:

• =TODAY() - returns the current date (without time)
• =YEAR() - returns the year from a given date
• =MONTH() - returns the month from a given date
• =DAY() - returns the day from a given date
• =HOUR() - returns the hour from a given time
• =MINUTE() - returns the minute from a given time
• =SECOND() - returns the second from a given time

Last verified on 10-08-2026

Explanation

• A collection of system programs that controls and coordinates the overall operations of a computer system is called an Operating System.
• An Operating System (OS) manages the computer’s hardware and software resources.
• It controls CPU, memory, files, input/output devices, and running programs.
• It provides an interface between the user and computer hardware.
• Examples include Windows, Linux, macOS, Android, and iOS.

Last verified on 10-08-2026

Explanation

• A standard single-sided, single-layer DVD holds 4.7 GB of data.
• A double-layer DVD can store up to 9.4 GB.
• A single-layer HD-DVD holds 15 GB of data.
• A dual-layer HD-DVD provides up to 30 GB of storage capacity.

Last verified on 10-08-2026

Explanation

• The Recycle Bin temporarily stores deleted files and folders in Windows.
• Files in the Recycle Bin can usually be restored to their original location.
• Choosing Empty Recycle Bin permanently removes the stored items.

Last verified on 10-08-2026