Explanation

• DOS (Disk Operating System) is a single-user operating system.
• It is designed for one user at a time.
• DOS uses a Command-Line Interface (CLI) instead of a graphical interface.

Additional information:

• Examples of Multi-user OS: Windows, Linux, UNIX, macOS

Last verified on 06-08-2026

Explanation

• Shortcut key for center alignment: Ctrl+E

Additional information:

• Center align means middle of the page.
• Ctrl + R -- Align selected text or line to the right.
• Ctrl + M -- Indent the paragraph.

Last verified on 07-08-2026

Explanation

• BIOS stands for Basic Input Output System.

Additional information:

• BIOS is a firmware stored on a computer’s motherboard.
• Initializes hardware during booting and provides runtime services.
• Acts as an interface between operating system and hardware.

Last verified on 04-02-2026

Explanation

• Decrease the font size by 1 point: Ctrl + [

Additional information:

• Increase the font size. Ctrl + Shift + >
• Decrease the font size: Ctrl + Shift + <
• Increase the font size by 1 point: Ctrl + ]
• Ctrl + Shift + F: Change the font
• Open the Font dialog box to change the font: Ctrl + Shift + F

Verified & Updated

Explanation

• The keyboard shortcut to select the entire document (or all items in a window) is Ctrl + A.
• Function: Selects all content, text, or files in the active window.

Additional information:

• Ctrl + R = used for aligning selected text to the right.
• Ctrl + E = used for aligning selected text to the center.
• Ctrl + J = use for Justify paragraph alignment.
• Ctrl + L = used for aligning selected text to the left.
• Ctrl + Q = used to Align the selected paragraph to the left.

Explanation

Explanation

• The phrase "Out of the blue" means Unexpectedly/Suddenly.
• It refers to something happening without warning or surprise, like a sudden event or occurrence.

Last verified on 06-08-2026

Explanation

All important questions of  "the 1956 constitution"

1956 constitution is promulgated on 23 March 1956

***

Iskander Mirza abrogated the 1956 constitution

***

Both Urdu and Bengali were declared as official and national languages of Pakistan in the 1956 constitution

***

Constitution of 1956 · Pakistan was declared as the Islamic Republic

***

In 1956 the designation of Governor General changed to President

****

40 years was the age prescribed for president in the 1956 constitution

***

The Constitution of 1956 contained 234 articles divided into thirteen parts and six schedules

**

The constitution of 1956 remained implemented for 2 years 6 months and 14 days.

**

The constitution of 1956 provided a Parliamentary form of government for the country.

***

1956 constitution legislature was Unicameral

***

The Constitution of 1956 provided for a federal system with the principle of parity between East Pakistan and West Pakistan

ND27-12-2022

Sh26-8-2023

Explanation

Series pattern is =6+9+12+15

6+6=12 is missing 

Explanation

Antoine Henri Becquerel was an engineer, physicist, Nobel laureate,

First person to discover evidence of radioactivity.

 He belonged to France.