Explanation

• ARPANET was the first network that initiated the Internet.
• It was launched in 1969 by the U.S. Department of Defense's ARPA.
• ARPANET stands for Advanced Research Projects Agency Network.

Additional information:

• First message sent: 29 October 1969
• TCP/IP adopted: 1 January 1983
• World Wide Web introduced: 1989 (by Tim Berners-Lee)
• Public Internet growth: 1990s

Last verified on 27-07-2026

Explanation

• A single page of a PowerPoint presentation is called a Slide.
• A slide is a single screen/page that contains text, images, charts, videos, or other presentation elements.
• A collection of slides forms a PowerPoint presentation.
• PowerPoint is a presentation software developed by Microsoft.
• Slides can be displayed using Slide Show mode.
• The default PowerPoint file extension is .pptx.

Last verified on 07-08-2026

Explanation

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).

Additional information:

• .xls extension of Excel.
• .ppt extension of PowerPoint.
• .txt extension of Text files.
• .pdf extension of Portable Document Format.

Last verified on 15-02-2026

Explanation

• Full Form: Portable Document Format (PDF)
• Developed by: Adobe Inc.
• Introduced: 1993
• Co-founder associated with Adobe: Charles Geschke
• Purpose: Reliable document sharing and viewing

ان سولات کو ضرور پڑھیں

Click here

Last verified on 01-07-2026

Explanation

• Pressing F2 allows you to edit the contents or formula of the current cell in MS Excel.

Additional information:

• F4: Repeat last action / toggle absolute and relative references
• CTRL + 1: Opens Format Cells dialog
• CTRL + F: Opens Find dialog
• Works in: Excel 2007, 2010, 2013, 2016, 2019, 365

Last verified on 12-03-2026

Explanation

• The Taskbar provides access to the Start menu.
• It contains shortcuts to programs and running applications.
• It also provides access to system controls such as volume.

Additional information:

• Menu Bar: Contains commands and menus.
• Title Bar: Displays the title of the active window.

Last verified on 29-09-2026

Explanation

• Powerpnt.exe is the executable file responsible for starting Microsoft PowerPoint.
• The .exe extension indicates an executable program file in Windows.
• Powerpnt.exe is associated with launching Microsoft PowerPoint.

Additional information:

• Winword.exe → Microsoft Word
• Excel.exe → Microsoft Excel

Last verified on 07-08-2026

Explanation

• "Superscript" is not a font style in MS Word.
• Superscript is a text effect used to raise characters above the normal line of text.
• Font styles include options like Bold, Italic, and Regular.

Last verified on 29-09-2026

Explanation

• Ctrl + Y is used for redoing the last undone action in most applications.

Additional information:

• - Ctrl + Z: Undo
• - Ctrl + X: Cut
• - Ctrl + C: Copy
• - Ctrl + V: Paste

Last verified on 09-08-2026