Computer Science

MS Word (Microsoft Word) is a word processing software developed by Microsoft. It is not simply 'A Word', a spreadsheet, or an operating system. None of the options A, B, or C correctly describe MS Word, so 'None of These' is the correct choice. MS Word allows users to create, edit, format, and print text documents and is widely used worldwide as a word processor.

The term 'Gigabyte' has two common definitions: In the decimal (SI) system, 1 Gigabyte (GB) equals 1,000 Megabytes (MB). In the binary system, often used in computing memory contexts, 1 Gigabyte equals 1,024 Megabytes. The question's answer 'D' (1024 megabytes) is correct under the binary system, which is the standard used in many computing contexts for data storage units. Other options are incorrect: A (1024 bits) is far too small, B (1032 megabytes) is incorrect, and C (1024 kilobytes) is incorrect as 1 GB = 1024 MB, not KB.

A nibble is a unit of digital information that consists of 4 bits. Therefore, 1 nibble equals 4 bits.

A CPU (Central Processing Unit) is a physical component of a computer system, making it hardware. It is not software, a program, or an output unit.

HTML stands for Hyper Text Markup Language, which is the standard language used to create web pages. The other options do not accurately represent what HTML stands for.

The chief component of first generation computers was vacuum tubes and valves, which were used for circuitry and memory. Transistors and integrated circuits were introduced in later generations.

The first page of a website is commonly referred to as the 'Homepage.' It is the main entry point for visitors and typically contains links to other sections of the website.

USB stands for 'Universal Serial Bus,' which is a standard for cables, connectors, and protocols used for connection, communication, and power supply between computers and electronic devices.

The Brain virus, considered the first computer virus for MS-DOS, was created in 1986 by two brothers, Basit and Amjad Farooq Alvi, from Pakistan.

A nibble is equal to 4 bits. Therefore, 4 nibbles equal 16 bits. Since 1 byte is 8 bits, 16 bits equal 2 bytes.