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

• Registers are the fastest storage units inside the CPU.
• They temporarily hold data, instructions, and intermediate results during processing.
• Registers are faster than both cache memory and RAM.
• They are directly used by the CPU during instruction execution.

Last verified on 03-09-2026

Explanation

• RAM and Cache are volatile memories.
• It means their data is lost when power is turned off.
• Volatile memory requires continuous power to retain data.
• RAM is used for running programs and storing temporary data.
• Cache is a high-speed memory that stores frequently used data for the CPU.

Additional information:

• ROM is non-volatile and retains data without power.

Last verified on 16-02-2026

Explanation

• Inventor: Tim Berners-Lee
• Collaborator: Robert Cailliau
• Year of invention: 1989 August
• Organization: CERN (European physics lab, Switzerland)
• First website: 1991 (public release)
• WWWW stands for World-Wide Web Worm.

Last verified on 24-06-2026

Explanation

• Data refers to a collection of raw facts and figures.
• Data can include numbers, words, symbols, or observations.
• When data is processed and organized, it becomes information.
• Example: 85, 90, 76 are raw data; their calculated average is information.

Last verified on 03-09-2026