Explanation

• Operating System: The main software that manages hardware and runs applications.
• It loads during the boot process.
• Without an OS, a computer cannot provide a usable working environment.

Last updated by NA on 04-11-2026

Explanation

1 Gigabyte (GB) =

• - 1,024 MB — Binary system (traditional computing).
• - 1,000 MB — Decimal system (storage manufacturers).

Additional information:

Computer storage size is measured in Kilobytes (KB), Megabytes (MB), Gigabytes (GB), and Terabytes (TB).

• 1 Kilobyte (KB) = 1024 bytes
• One Megabyte (MB) = 1024 Kilobytes (KB)
• One Gigabyte (GB) =  1024 Megabytes (MB)
• One Terabyte (TB)= 1024 Gigabytes (GB)

Last updated by NA on 04-11-2026

Explanation

• Type: Impact Printer
• Printing Method: Pins strike an ink ribbon
• Common Pin Configurations: 9-pin, 24-pin
• Output: Text and graphics
• Main Advantage: Can print multi-part forms

Last updated by NA on 04-11-2026

Explanation

• The physical part of a computer is called hardware.
• Hardware refers to all the tangible parts of a computer that contribute to its functionality.
• Some examples of hardware include:
• Motherboard, RAM, CPU, Mouse, Keyboard, CD, DVD, Hard disk, Monitor, and Case.

Additional information:

• In contrast, software is the intangible part of a computer that helps it perform its functions.
• Software is made up of programs, procedures, and routines that run the computer system.

Last verified on 04-09-2026

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

• In classic versions of Internet Explorer, the View menu contains the Toolbars option.
• Users can show or hide the Favorites Bar through the relevant toolbar settings.

Additional information:

• Internet Explorer was developed by Microsoft.
• It was first released in 1995.
• Microsoft retired Internet Explorer 11 on most versions of Windows 10 on 15 June 2022.

Last verified on 29-10-2026

Explanation

The menu or tab used to change the font and style is the Home tab.

• MS Word manual font size (1-1638)
• Excel: 8-72(1-409)
• PowerPoint: 8-96(1-3600)

Last updated 27-07-2026 by NA

Explanation

A document in Microsoft Word can be saved in three commonly taught ways.

1. File → Save → Saves the document.
2. Ctrl + S → Quick Save shortcut.
3. F12 → Opens the Save As dialog box.

Save → Updates the current file.

Save As → Saves with a new name, location, or format.

Explanation

• RAM and Cache are volatile memories.
• It means their data is lost when power is turned off.
• Volatile memory requires continuous power to retain data.
• RAM is used for running programs and storing temporary data.
• Cache is a high-speed memory that stores frequently used data for the CPU.

Additional information:

• ROM is non-volatile and retains data without power.

Last verified on 16-02-2026

Explanation

• Data Validation in Excel is used to restrict or control the type of data (e.g., numbers only, dates, list values) entered in a cell.
• It helps prevent errors and ensures data consistency.

Last verified on 23-10-2026