Explanation

• Cache Memory is the fastest memory.
• It is typically located inside or very close to the CPU.

Additional information:

• L1 Cache: Usually the fastest and smallest CPU cache.
• L2 Cache: Larger than L1 but generally slower.
• L3 Cache: Larger and usually shared among CPU cores.

Last verified on 09-08-2026

Explanation

• The 1973 Constitution of Pakistan contains 280 articles.
• It is the current and permanent constitution of Pakistan.
• It came into effect on 14 August 1973.
• It was approved during the government of Zulfiqar Ali Bhutto.
• It provides the basic legal framework of the state.

Additional information:

• 1956 Constitution: 234 articles, 13 parts, 6 schedules
• 1962 Constitution: 250 articles, 12 parts, 3 schedules

Last verified on 11-06-2026

Explanation

1. Sentence Case
2. Lowercase
3. Uppercase
4. Title Case
5. Toggle Case

Last verified on 10-08-2026

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

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 shortcut key for Undo (last action reverse) is Ctrl + Z in most computer systems.
• It is used to cancel the last mistake or action.

Additional information:

• Ctrl + P = Print
• Ctrl + Y = Redo
• Ctrl + S = Save
• Ctrl + C = Copy command
• Ctrl + V = Paste
• Ctrl + C = Copy
• Ctrl + X = Cut
• Ctrl + Y = Redo

Last verified on 10-06-2026

Explanation

• Harass means to annoy, trouble, or attack someone repeatedly over a period of time.
• Harass ہراساں کرنا , ستانا , or پریشان کرنا
• Annoy, ناراض  

Explanation

• Email stands for Electronic Mail.
• It is a method of sending and receiving digital messages through the internet.
• The term electronic mail has been used with its modern meaning since 1975.
• The shorter form E-mail became common around 1979.

Additional information:

Parts of a valid email address:

1. Email Prefix
2. Email Domain

Address: example@mail.com

1. example = Email Prefix
2. mail.com = Email Domain

Last verified on 16-06-2026

Explanation

• CPU stands for Central Processing Unit.
• It is the main part of a computer that processes all instructions.
• It is considered the brain of the computer system.
• It performs all calculations and decision-making tasks.
• It controls the operations of all hardware and software.
• It is located on the motherboard.

Last verified on 10-06-2026

Explanation

• Definition: Uses 2 or more CPUs.
• Benefit: Faster processing.
• Main Memory: Processors usually share RAM.
• Purpose: Handles multiple tasks efficiently.

Additional information:

• Uniprocessor: One processor
• Multithreaded: Multiple threads
• Multiprogramming: Multiple programs in memory