Computer Glossaries To Asir

A router is a device used in computing to direct data packets within a network, not to be confused with other unrelated meanings of the word.

The OSI model consists of 7 network layers - Physical, Data Link, Network, Transport, Session, Presentation, and Application.

The OSI model consists of 7 layers in the following order: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

The correct answer is USB (Universal Serial Bus), which is a common port for connecting external devices such as drives to a computer. HDMI is a port used for connecting multimedia devices, Ethernet is used for network connectivity, and VGA is used for connecting displays.

Software refers to a set of instructions that tells the computer how to perform specific tasks. Hardware refers to physical components of a computer, firmware is a type of software that provides low-level control for the hardware, and an operating system is a software that manages computer hardware and provides common services for computer programs.

A keyboard is the primary input device used to type words on a computer. A mouse is used for pointing and clicking, a USB drive is used for storing data, and headphones are used for listening to audio.

The CPU (Central Processing Unit) acts as the brain of a computer by carrying out instructions and performing calculations necessary for various tasks. While RAM (Random Access Memory), hard drive, and graphics card are essential components, they do not serve as the primary processing unit like the CPU does.

The correct answer refers to the BIOS (Basic Input/Output System) in a PC, which is responsible for booting up the computer and managing hardware components.

The root directory in the UNIX File System is represented with a forward slash (/) which serves as the top-level directory in the file system.

In Unix-like operating systems, the /bin directory contains essential user commands and system directories required for bootstrapping and repairing the system.

Files that work with remote or local devices are located in the /dev directory in Unix-like operating systems. This directory contains special device files that represent various input/output devices.

Email is a system used for electronic communication, allowing users to send and receive messages via the internet.

The Shift key is used to toggle between uppercase and lowercase letters on a keyboard. The Control key and Alt key are usually used for keyboard shortcuts, while the Caps Lock key is used to toggle capital letters continuously.

A joystick is a common peripheral used for playing video games, providing precise control of movements in games that require it. While a keyboard and mouse are also commonly used for gaming, they may not be ideal for certain types of games. A gamepad is another alternative input device, but typically not as versatile as a joystick.

To turn on a computer, you typically need to press the Start button which is often located on the front panel or near the power symbol.

SD cards are typically read in an SD card reader, which is designed specifically for that purpose.

Mobile phones can communicate with computers using technologies like Bluetooth, WiFi, NFC, and IR Blaster. However, the most common method is through Bluetooth connectivity.

A byte is a unit of digital information that consists of 8 bits. It is commonly used in computing and digital technology to represent characters, symbols, and numbers. Each byte can represent 256 different values (2^8), making it a fundamental building block in computer memory and data storage.

1 Kilobyte is equal to 1024 Bytes, not 1000 Bytes, 500 Bytes, or 2048 Bytes.

The binary numbering system is based on powers of 2, with each digit representing a power of 2. It uses only 0 and 1 as symbols to express all numbers in a base-2 system.

In binary, 0 represents the off state where the circuit is open, while 1 represents the on state where the circuit is connected.

Cache is a specific type of memory used by the CPU to temporarily store frequently accessed data, allowing for quicker access times and enhancing overall system performance.

Understanding the concept of volatile and non-volatile memory is essential in computing. Volatile memory loses its data when power is removed, while non-volatile memory does not. It is important for system stability and data preservation to utilize the appropriate type of memory for specific use cases.

Nonvolatile memory retains the stored information even when the power is turned off. Flash memory, CDs, DVDs, Hard drive, and ROM are examples of nonvolatile memory due to their ability to hold data without requiring constant power. Meanwhile, RAM, SSDs, USB drives, and Magnetic tapes are examples of volatile memory that lose data when power is removed.

Registers are high-speed memory units within the CPU that store data temporarily during processing.

USB stands for Universal Serial Bus, which is a standardized connection that allows devices such as computers, smartphones, and peripherals to communicate with each other.

The correct answer highlights the fundamental tasks that computers perform: receiving input, processing data, producing output, and storing information for future use.