MCQs

Explanation
1 byte equals 8 bits. Additional Information 1024 Bytes =  1 Kilobyte (KB) 1024 Kilobytes =  1 Megabyte (MB) 1024 Megabytes =  1 Gigabyte (GB) 1024 Gigabytes =  1 Terabyte (TB)

Explanation
Viruses, Trojan horses, and worms   are malicious software used to harm a computer system. A Trojan Horse  is a program that allows the attacker to control the user's computer from a remote location. Additional Information   The list below shows some of the activities that the attacker can perform using a Trojan horse: ​ Electronic money theft . Modifying files  on the user’s computer Damage the user’s computer (crashing, blue screen of death, etc.) Stealing sensitive data  such as stored passwords, credit card information, etc. A worm  is a malicious computer program that replicates itself usually over a computer network. A virus  is a computer program that attaches itself to legitimate programs and files without the user's consent. A computer virus  may be used to; Access private data such as user id and passwords. Display annoying messages to the user. Corrupt data on your computer. Log the user’s keystrokes.

Explanation
A flip-flop is a basic digital memory device used in computers to store a single bit of data. It is commonly used in registers, counters, and other memory-related components within a computer's hardware.

Explanation
HTML (HyperText Markup Language) is a standard language used to create and design web pages, not a web browser . Internet Explorer and Chrome are both web browsers that allow users to access and navigate websites on the internet.

Explanation
Computers process data using binary language, which consists of 0s and 1s . It representing the on/off states of electrical signals. Binary is the fundamental language of computers. It allowing them to perform operations and store information.

Explanation
Information refers to data that has been processed or organized in a meaningful way to provide value or context. Unlike raw data, information is understandable and useful for decision-making or analysis.

Explanation
RFID (Radio Frequency Identification) tags are used to track and record movements of objects, such as books , by using radio waves. In libraries, RFID tags can help monitor book checkouts, returns, and movement within the library efficiently.

Explanation
Language translators , such as compilers and interpreters. It convert high-level programming languages into machine language that a computer can execute. This process allows developers to write code in human-readable formats , which is then translated into the binary code understood by the computer's processor.

Explanation
Android is a mobile operating system designed specifically for smartphones and tablets. It is based on the Linux kernel . It provides a platform for developers to build and run mobile applications.

Explanation
BIOS (Basic Input/Output System) is responsible for initializing hardware. It providing the boot instructions when the computer is powered on. It performs a system check ( POST ) and then loads the operating system from the storage device (like the hard disk) into RAM .