Explanation

Hard real-time OS ensures tasks meet strict deadlines with minimal timing variation (jitter).

Soft real-time OS allows more flexibility, so jitter can be higher.

Explanation

DOCX is the newer version of DOC, the original official Microsoft Word file format.

Microsoft Word 97 - 2003 Document extension (.doc).

Microsoft Word 2007 to till date Document extension (.docx).

Explanation

A device driver is software that allows the operating system to communicate with hardware devices.

Without drivers, the hardware cannot function properly or be recognized by the computer.

Explanation

Utility Software: Helps maintain, analyze, and protect the computer (includes antivirus, disk cleanup, etc.)

System Software: Runs the hardware and system (e.g., OS like Windows)

Application Software: End-user programs (e.g., MS Word, Photoshop)

Development Software: Tools for programming (e.g., compilers, IDEs)

Explanation

In MS Excel, when you insert a chart without specifying the type, it defaults to a Column Chart.

Column charts are commonly used to compare values across categories.

Explanation

The "Track Changes" feature in MS Word allows you to track changes made to a document.

It enabling users to see edits, additions, and deletions made by different collaborators.

This tool is essential for reviewing and managing document revisions efficiently.

Explanation

A combination of 16 bits is called a "word".

It is a standard unit of data used in computing to represent information.

• Bit: a single binary digit (0 or 1)
• Nibble: 4 bits
• Byte: 8 bits
• Word: 16 bits
• Double Word: 32 bits

Explanation

In presentation software like Microsoft PowerPoint, animation schemes can be applied to:

• All slides: You can apply the animation scheme to every slide in the presentation simultaneously.
• Selected slides: You can choose specific slides and apply the animation only to those.
• Current slide: You can apply the animation scheme to just the slide you are currently working on.

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