A disk, such as a hard disk drive or solid-state drive, serves as a secondary memory device for long-term data storage.

Input devices convert human-understandable data and instructions into a digital format that a computer can effectively process and interpret.

Hardware refers to the physical components of a computer system, including all tangible parts like the CPU, memory, and peripherals.

Application software is specifically designed to perform particular tasks or functions that directly address the individual needs and requirements of users.

Cracking specifically refers to the act of electronic trespassing or criminal hacking, often involving unauthorized access to computer systems.

A worm is a standalone malware computer program that replicates itself to spread to other computers, often without human interaction.

Batch processing efficiently handles large volumes of transactions by collecting and processing them together at scheduled intervals, ideal for large systems.

Formatting is the essential process of preparing a disk for data storage by logically dividing its surface into tracks and sectors.

Cookies are small data files stored on a user's computer by websites to remember user preferences and track return visits.

Printers are output devices, not storage devices; hard disks, floppy disks, and CD drives are all examples of data storage.

The Central Processing Unit (CPU) comprises the Arithmetic Logic Unit (ALU) for calculations and the Control Unit for managing operations.

ROM (Read-Only Memory) is non-volatile, retaining data even without power, and its contents are static, meaning they are not easily altered.

The ESC (Escape) key is commonly used to cancel commands, close drop-down lists, and exit dialog boxes in various software applications.

Screens, printers, and speakers all serve as output devices, displaying or producing information from the computer for the user.

The system unit internally houses components like the microprocessor and disk controller, but a modem is usually an external peripheral device.

The output quality of a printer is typically measured in Dots Per Inch (DPI), indicating resolution.

John Napier, a Scottish mathematician, published his discovery of logarithms in the year 1614.

An embedded system is a dedicated computer system integrated as part of a larger device or machine.

MICR is an acronym for Magnetic Ink Character Reader, a technology used for processing checks.

The earliest computers were programmed directly using machine language, which consists of binary instructions.

CD-ROM stands for Compact Disc Read-Only Memory, an optical disc format for data storage.

WWW is the widely recognized acronym for World Wide Web, a global information system.

Raised refers to the vertical position of text, not a character spacing option like expanded or condensed.

UNIX is an operating system originally developed by Bell Labs for scientists and engineers, known for its portability, multitasking, and multi-user capabilities.