Explanation

• Communication between a keyboard and computer is simplex.
• It means data flows in one direction only — from keyboard to computer.
• The computer does not send data back to the keyboard during typing.

Additional information:

There are 3 main data transmission modes:

1. Simplex: Data flows in one direction only (e.g., keyboard to computer).
2. Half-Duplex: Data can flow both ways, but not at the same time (e.g., walkie-talkies).
3. Full-Duplex: Data flows both ways simultaneously (e.g., telephone conversations).

Last verified on 17-06-2026

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

• The phrase accustomed ended with “To” and is  followed by “ing” form of a verb.
• Accustomed to something means کسی چیز کا عادی ہونا
• I am not accustomed to being interrupted.

Last verified on 12-05-2026

Explanation

• The Simla Deputation met the Viceroy of India on 1 October 1906.
• It was led by Sir Aga Khan III.
• The delegation consisted of about 35 members.
• First, the group met the Principal of Aligarh College (MAO College).
• The Principal arranged the meeting through Colonel Dunlop (Secretary to Viceroy), and then the delegation met Lord Minto.
• Since the meeting took place at Simla, it was called the Simla Deputation.

Last verified on 02-05-2026

Explanation

• Al-Baqarah (The Cow or The Heifer) is the second and longest chapter of the Quran, with 286 verses.
• It derives its name from the story of the cow (vv. 67-73).
• Verse 282, the longest verse, is known as 'āyatu d-dayn.
• It consists of 25,500 letters and is positioned in Juzʼ 1–3.
• The chapter has 40 Rukus.
• It is classified as Medinan.

Additional information:

• Hazrat Ibrahim (علیہ السلام) is mentioned 13 times.
• The verse 183 describes the obligation of fasting (soam).
• Surah Aal-e-Imran is the second longest surah of Holy Quran.
• Surah Al-Kausar is the shortest surah of Holy Quran.

Last verified on 30-03-2026

Explanation

A gateway is the primary network device designed to connect two or more networks

Use different, incompatible, or disparate protocols.

Acting as a protocol converter or "translator," 

It acts as a translator between systems so they can communicate effectively.

Last updated 15-feb-2026

Explanation

Bandwidth refers to the amount of data transmitted per second.

It is measured in bits per second (bps).

It indicates the speed or capacity of a network connection.

Last updated 15-feb-2026

Explanation

The ENIAC (Electronic Numerical Integrator and Computer), developed from 1943 to 1946.

It was the first general-purpose electronic digital computer.

It was designed for calculating artillery firing tables and utilized vacuum tubes.

Explanation

Microprocessors are used in many other electronic devices, including:

• Computers,
• Digital systems,
• Calculators

Inventor of Microprocessors: Marcian E Hoff

Microprocessors in 4th generation computer.

AGM 09-2-2023

Explanation

He told me that he had the duty.

Present perfect ("have") changes to past perfect ("had") in indirect speech.