Explanation

• Full Form: Internet of Things
• Definition: A network of physical devices connected to the internet.
• Purpose: Collecting and exchanging data.
• Examples: Smartwatches, smart TVs, smart home appliances.
• Key Technologies: Sensors, software, and internet connectivity.
• Main Benefit: Automation and remote monitoring.

Last updated: 27 OCT 2026 

Explanation

mportant keys

Ctrl+N - Create a new document

Ctrl+O - Open an existing document

Ctrl+S - Save a document

F12 - Open the Save As dialog box

Ctrl+W - Close a document

Ctrl+Z - Undo an action

Ctrl+Y - Redo an action

Alt+Ctrl+S - Split a window or remove the split view

Ctrl+F - Search a document

"Ctrl + End" is used to move the cursor to the end of the Document.

Ctrl + E is used to align the text in the Centre slide of a paragraph

Explanation

Input devices are used to provide data and control signals to a computer.

• Examples: Keyboard, mouse, scanner, camera, joystick, and microphone.

Output devices display the results of that data. 

• Examples: Printer, Monitor, Plotter, Speaker, Headphones, Projector, GPS device, Optical mark reader, and Braille reader.

 Last updated 12 april 2026

Explanation

In MS Excel, "character" is not a valid data type.

There are Three types of data in cells: labels, values, and formulas.

1. Labels (text) are descriptive pieces of information, such as names, months, or other identifying statistics, and they usually include alphabetic characters.
2. Values (numbers) are generally raw numbers or dates.
3.  Formulas are instructions for Excel to perform calculations.

Explanation

A hard disk is a secondary storage device used to store data permanently.

RAM and ROM are primary storage (main memory).

Diodes and Semiconductors are basic electronic components.

CD-ROM is a secondary storage device used to store data permanently.

Explanation

PowerPoint Shortcut:

Pressing F5 starts the slideshow from the beginning.

Shift + F5 starts it from the current slide.

Explanation

Transfer method:

This refers to the process of moving data between secondary memory (like hard drives or SSDs) and primary memory (RAM).

For example, when files are loaded from a hard drive into RAM, data transfer occurs.

Explanation

• A worksheet is an electronic spreadsheet that lets users to Calculate, Enter & Analyze data.
  

  A spreadsheet is a computer application for computation, organization, analysis and storage of data in tabular form.

  
  

Explanation

The VLOOKUP function in Excel is used to search for a value in the first column of a range

And return a value in the same row from a specified column.

It is commonly used for looking up data in a table or range.

Explanation

NOS stands for Network Operating System.

It is software that manages network resources and allows computers to communicate within a network.

Such as file sharing and printer access.