Explanation

• ROM stands for Read Only Memory.
• It is a type of non-volatile memory.
• So its contents are retained when power is turned off.
• ROM stores important instructions such as firmware and boot instructions.

Additional information:

• RAM → Random Access Memory
• PROM → Programmable Read Only Memory
• EPROM → Erasable Programmable Read Only Memory

Last verified on 08-08-2026

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

• Pencil work is not an element of the spreadsheet interface.
• Active Cell, Menu Bar, and Workbook are associated with a spreadsheet environment.
• The Active Cell is the currently selected cell where data can be entered or edited.
• A Workbook is an Excel file containing one or more worksheets.

Last verified on 26-08-2026

Explanation

• Referencing means referring to or retrieving data from another cell or worksheet.
• In Excel, a reference to another sheet can be written as =Sheet2!A1.
• This allows data from one worksheet to be used in another worksheet.
• It is especially useful for linking related data across multiple sheets.

There are Three types of Cell reference in Excel.

1. Relative
2. Absolute
3. Mixed

Last verified on 26-08-2026

Explanation

• A word processor is software used to create, edit, format, and print text documents.
• Common uses include typing letters, reports, applications, and other documents.
• Examples include Microsoft Word, Google Docs, and LibreOffice Writer.

Last verified on 25-08-2026

Explanation

• Times New Roman and Arial are commonly used font styles/typefaces.
• A font determines the visual appearance and design of text.
• Font size refers to the size of the characters, such as 12 pt or 14 pt.
• Bold, Italic, and Underline are examples of text formatting styles.
• Common fonts include Arial, Times New Roman, Calibri, and Verdana.

Last verified on 23-08-2026

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

• In the ALU (Arithmetic Logic Unit), arithmetic and logical operations required during instruction execution are performed.
• ALU performs arithmetic operations such as addition and subtraction.
• It also performs logical and comparison operations.

Additional information:

• The Control Unit (CU) directs and coordinates the execution of instructions.
• Main Memory stores programs and data currently being used.
• The CPU consists mainly of the ALU, Control Unit, and registers.

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

Explanation

• Selecting "No Outline" removes or hides the border of a shape.
• This option is available in applications like MS Word or PowerPoint.
• It leaves the shape without a visible border.

Last verified on 10-08-2026