Explanation

• Keyboard is not software; it is a hardware device used for input.
• Software refers to programs that run on a computer.
• Operating System, Drivers, and Word Processor are all software types.
• Hardware includes physical components you can touch.
• Keyboard is used to enter data into the computer.

Last verified on 08-06-2026

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

• GUI stands for Graphical User Interface.
• It uses icons, windows, and menus for interaction.
• It is easier to use than command-based interfaces.
• MS-DOS and Apple DOS are command-line interfaces.

Last verified on 11-04-2026

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 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

• The dollar sign ($) is used to create an absolute cell reference in MS Excel.

Additional information:

• Absolute Reference: $D$2 (Row and column fixed)
• Relative Reference: D2 (Row and column change)
• Mixed Reference: $D2 (Column fixed)
• Mixed Reference: D$2 (Row fixed)
• Shortcut Key: F4 toggles between reference types.

Last verified on 18-07-2026

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

Explanation

• A vacuum tube is also known as an electronic valve because it can control the flow of electrons.
• It especially allowing current to flow primarily in one direction in diode-type vacuum tubes.
• The term “valve” comes from its ability to control or regulate electron flow.
• A diode vacuum tube has two electrodes and permits current mainly in one direction.
• Vacuum tubes were widely used in early computers, radios, televisions, and amplifiers.

Last verified on 10-08-2026

Explanation

• The function of a web browser is to view and interact with web content.
• A web browser is software used to access and display websites on the Internet.
• It retrieves web pages from web servers and displays text, images, videos, and other content.
• Examples include Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari.
• Browsers use web technologies such as HTML, CSS, and JavaScript to display interactive web pages.

Last verified on 10-08-2026

Explanation

• To adjust a column width to fit its contents in Excel, you can:
• Double-click the boundary to the right of the column heading.
• This action automatically resizes the column width to match the longest entry in that column.
• This ensuring that all data is visible without manually adjusting the width.

Last verified on 10-08-2026