Computer Fundamentals

Floppy disks and hard disks are external storage devices because they are separate hardware components that can be connected to or installed in a computer system. Internal storage refers to components permanently inside the computer like RAM. Remote storage involves network-based or cloud storage. Floppy and hard disks are classic examples of external/peripheral storage media.

Impact printers (like dot matrix or daisy wheel) use physical contact to create characters. Ink jet printers spray ink onto the paper without physical impact, making them non-impact printers.

In computing, a byte is defined as a unit of digital information that typically consists of 8 bits.

Telnet is a network protocol that allows a user to connect to a remote computer and log in as if they were sitting at the remote machine.

ISDN stands for Integrated Services Digital Network, which is a set of communication standards for simultaneous digital transmission of voice, video, and data.

The microprocessor (CPU) is the central component of a PC that executes instructions and performs the primary processing tasks, effectively serving as the brain of the computer.

A sound card is an internal expansion card that provides input and output of audio signals to and from a computer under control of computer programs.

ASCII (American Standard Code for Information Interchange) is a character encoding standard used for representing text in computers and other devices.

Internet Explorer, Netscape Navigator, and Mosaic are all examples of early web browsers used for navigating the internet.

Screen resolution is defined by the number of pixels displayed horizontally and vertically on the screen.

The power supply unit (PSU) is a separate component that converts mains AC to low-voltage regulated DC power for the internal components of the computer; it is not a part of the motherboard itself.

The internet functions as a medium for communication and information exchange, and as a global market for commerce and services.

TCP/IP (Transmission Control Protocol/Internet Protocol) is the fundamental suite of communication protocols used to interconnect network devices on the internet.

Random Access Memory (RAM) is volatile memory used to store data and programs that the CPU is currently using, allowing for fast temporary access.

A computer virus is a type of malicious software that, when executed, replicates itself by modifying other computer programs and inserting its own code.

Booting is the process of starting a computer, which involves loading the operating system and executing pre-scheduled startup commands.

Scratch pad memory refers to a high-speed internal memory used for temporary storage of data during processing. RAM (Random Access Memory) serves this purpose in computer architectures.

A network is a collection of interconnected computers and devices that share resources, such as printers or files, within a specific area.

Bootstrapping is the initialization process that starts a computer system. It involves loading the operating system into memory after the power is turned on.

Web pages are files stored on a web server. When a user requests a page, the server sends the file to the browser.

WWW stands for World Wide Web, which is the information system where documents and other web resources are identified by URLs.

The Internet is defined as a global system of interconnected computer networks that use the Internet protocol suite to link devices worldwide.