Explanation

• The Data Bus transfers actual data between CPU and memory.
• It carries information that is being processed or stored.
• It is a two-way communication path in most systems.

Additional information:

• Address Bus: Carries memory location (address)
• Control Bus: Carries control signals (read/write)
• System Bus: Combination of all three buses
• Direction: Mostly bidirectional for data transfer

Last verified on 22-06-2026

Explanation

• A ransomware attack encrypts a victim’s data and demands money (ransom) to restore access.
• It locks files or entire systems until payment is made, usually in cryptocurrency.
• It is a type of malicious cyber attack (malware).
• Even after payment, data recovery is not guaranteed.
• It mainly targets individuals, companies, and government systems.

Last verified on 22-06-2026

Explanation

• HTML (HyperText Markup Language) is used for web designing and creating the structure of web pages.
• It defines elements like headings, paragraphs, images, links, and tables on websites.
• HTML is the basic building block of the World Wide Web.
• It works with CSS and JavaScript to create interactive websites.

Additional information:

• Developed by: Tim Berners-Lee (1991)
• Standardized by: World Wide Web Consortium (W3C)

Last verified on 22-06-2026

Explanation

• Database normalization reduces data redundancy in a database.
• It organizes data into well-structured tables.
• It removes duplicate (repeated) data.
• It improves data consistency and efficiency.
• It helps in reducing data anomalies during operations.

Last verified on 08-06-2026

Explanation

• Father of PC: Edward Roberts
• First PC: Altair 8800
• Year: 1975
• Country: USA
• Impact: Start of personal computing era

Last verified on 21-06-2026