Computer Terms — Set 4

Correct Answer: B. Terabyte

TB stands for Terabyte and is a unit of digital information storage. One Terabyte is equal to 1,024 Gigabytes (GB). Modern high-capacity hard drives and cloud storage services are typically measured in Terabytes.

Correct Answer: A. Wireless Fidelity

Wi-Fi is a family of wireless network protocols used for local area networking and internet access. It allows devices to connect to the internet without the need for physical cables. The term was created by a branding firm as a play on the term 'Hi-Fi'.

Correct Answer: B. Central Processing Unit

CPU stands for Central Processing Unit and is often referred to as the brain of the computer. It executes instructions of a computer program by performing basic arithmetic, logic, and input/output operations. The performance of a CPU is typically measured in Gigahertz (GHz).

Correct Answer: B. Hypertext Markup Language

HTML stands for Hypertext Markup Language and is the standard markup language for creating web pages. It uses tags to define elements like headings, paragraphs, and links. Browsers read HTML files and render them into visible web content.

Correct Answer: A. Universal Serial Bus

USB stands for Universal Serial Bus and is an industry standard for cables, connectors, and protocols for connection and power supply. It allows various peripherals like mice, keyboards, and flash drives to be easily connected to computers. USB-C is the latest and most versatile version of this interface.

Correct Answer: A. Compact Disc Read-Only Memory

CD-ROM stands for Compact Disc Read-Only Memory and is a pre-pressed optical compact disc that contains data. The data on a CD-ROM can be read by a computer but not modified or erased. They were once the primary medium for distributing software and large encyclopedias.

Correct Answer: D. Binary Digit

BIT stands for Binary Digit and is the smallest unit of data in a computer. It can have a value of either 0 or 1, representing off or on states. Eight bits grouped together form one Byte.

Correct Answer: B. Read-Only Memory

ROM stands for Read-Only Memory and is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be easily modified or deleted and remains intact even when power is lost. It is commonly used for storing firmware such as the BIOS.

Correct Answer: B. World Wide Web

WWW stands for World Wide Web and is an information system where documents and other web resources are identified by URLs. It was invented by Sir Tim Berners-Lee in 1989. While often used interchangeably with the 'Internet', the Web is actually a service that runs on the Internet infrastructure.

Correct Answer: C. Cathode Ray Tube

CRT stands for Cathode Ray Tube and was the standard technology used for televisions and computer monitors for several decades. It uses an electron gun to strike a phosphor-coated screen to create images. CRT monitors have largely been replaced by thinner LCD and LED displays.