| A | B |
|---|
| Kilobyte (KB or K) | 1024 bytes, or approximately one thousand bytes |
| Megabyte (MB) | 1,048,576 bytes, or about one million bytes |
| Gigabyte (GB) | 1,073,741,824 bytes, or about one billion bytes |
| Terabyte (TB) | is 1024 GB, or approximately one trillion bytes |
| Magnetic storage device | store data as magnetized particles on Mylar, a plastic, which is then coasted on both sides with a magnetic oxide coating |
| Hard disk | contains several magnetic oxide-covered metal platters that are usually sealed in a case inside the computer |
| Floppy disk | flat circle of magnetic oxide-coated Mylar enclosed in a hard plastic case that can store 1.44 MB of data |
| Optical storage devices | polycarbonate discs coated with a reflective metal on which data is recorded using laser technology as a trail of tiny pits or dark spots on the surface of the disk |
| USB flash storage device | popular type of flash memory, similar to ROM except that it can be written to more than once |
| Device driver | comptuer programs that can establish communication because it contains information about the characteristic of your computer and of the device |
| Network | connects one computer to other computers and peripheral devices, enabling you to share data and resources with others |
| Servers | one or more computers that act as the central storage location for programs and provide mass storage for most of the data network |
| Local Area Network (LAN) | computer and peripheral devices are located relatively close to each other, generally in the same building |
| Wide area network (WAN) | more than one LAN connected together |
| Wireless local area network (WLAN) | computer and peripherals use high-frequency radio waves instead of wires to communicate and connect in a network |
| Wi-Fi (Wireless Fidelity) | the term created by the nonprofit Wi-Fi Alliance to describe networks connected using a standard radio frequency established by the Institute of Electrical and Electronics Engineers (IEEE) |
| Infrared technology | uses infrared light waves to beam data from one device to another |
| Bluetooth | used short-range radio waves to connect a device wirelessly to another device or to the internet |
| Internet | largest network in the world |
| World Wide Web (Web) | huge database of information that is stored on network servers in places that allow public access |
| Web page | special type of text file that information is stored on |
| Web site | collection of web pages |
| Hyperlink (link) | place on a Web page that is programmed to connect to a particular file on the same network server |
| Web browsing software (web browser) | communications software that helps you navigate the Web |
| System software | helps the computer carry out its basic operating task |
| Application software | helps the user carry out a variety of specific tasks. Enables you to perform specific computer tasks, such as document production, spread-sheet calculations, and database management |
| Operating system | controls basic input and output, allocates system resources, manages storage space, maintains security, and detects equipment failure |
| Graphical user interface (GUI) | that acts a liaison between the user and all of the computer's hardware and software |
| Spreadsheet software | numerical analysis tool that both businesses and individuals use extensively |
| Database management software | lets you collect and manage data |
| Database | a collection of information stored on one or more computers organized in a uniform format of records and fields |
| Graphics software | allows you to display or project graphics and other information to a group, print them for quick reference, or transmit them to remoter computers |
| Presentation software | allows you to display or project graphics and other information to a group, print them for quick reference, or transmit them to remoter computers |
| Information management software | allows people to keep track of their schedules, appointments, contacts, and to-do list |
| Linking | allows you to create a connection between the source data and the copy in the new file |
