Explanation

• DOCX is the newer version of DOC, the original official Microsoft Word file format. 
• Microsoft Word 97 - 2003 Document extension (.doc).
• Microsoft Word 2007 to till date Document extension (.docx).

Additional information:

• .xls extension of Excel.
• .ppt extension of PowerPoint.
• .txt extension of Text files.
• .pdf extension of Portable Document Format.

Last verified on 15-02-2026

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

• Shareware is commercial and copyrighted software.
• It is often provided for a limited trial period.
• Some shareware versions have restricted features until purchase.
• Users can try the software before buying the full version.

Last verified on 29-09-2026

Explanation

HTTP stands for Hypertext Transfer Protocol.

It uses port 80 by default for non-secure web communication.

For secure HTTP (HTTPS), the default port is 443.

Last updated by NA on 15-02-2026

Explanation

• RAM (Random Access Memory) is used for both read and write operations.
• RAM is a volatile memory, meaning data is lost when the power is turned off.
• It temporarily stores data and instructions needed by the CPU during processing.

Additional information:

• ROM is mainly used for read-only operations and stores permanent instructions.
• PROM can be programmed once.

Last verified on 07-08-2026