Explanation

• AD stands for Anno Domini.
• It is a Latin term meaning “in the year of our Lord.”
• It is used for years in the traditional Christian calendar.
• For example, AD 2026 means the year 2026 in the AD system.

Additional information:

• BC: Before Christ
• CE: Common Era
• BCE: Before Common Era

Last verified on 30-09-2026

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

• 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

• BCC stands for: Blind Carbon Copy
• Used in: Email communication
• Purpose: Hides recipient email addresses from other recipients

Additional information:

• CC (Carbon Copy): Recipients are visible to all
• BCC: Recipients are hidden from everyone except the sender

Last verified on 16-01-2026

Explanation

• OPEC stands for Organization of the Petroleum Exporting Countries.
• Founded: 1960
• Headquarters: Vienna, Austria
• Purpose: Coordination and unification of petroleum policies among member countries.

Last verified on 28-09-2026