| A | B |
|---|
| DVD | Removable media that is used primarily for movie and data storage. |
| DVD-RAM | Removable media that can be repeatedly read, written to, and erased. |
| DVD-ROM | The type of DVD drive and disc for use on computers. |
| DVD-R | Removable media that can only be written to once. It must be completely erased before writing again. |
| DVD-RW | Technology that allows the DVD to be recorded multiple times. |
| DVI | A video interface standard designed to provide very high visual quality on digital display devices. Supports up to a resolution of 2560 x 1600 pixels. |
| ECC | It allows data that is being read or transmitted to be checked for errors and corrected if needed. |
| ECP | A type of parallel port that can provide up to 2.5 MBytes of bandwidth. Also known as IEEE 1284. It is used for connecting multiple use devices such as 3-in-1 or 4-in-1 printers. |
| EEPROM | A type of memory that is used to store small amounts of data that must be saved when power is removed but that can be updated by "flashing". |
| EFS | Used on Microsoft Windows systems to transparently encrypt files in order to protect confidential data from attackers with physical access to the computer. |
| EIDE | Enhanced version of the standard IDE interface that connects hard disks, CD-ROM drives, and tape drives to a PC via a ribbon cable to the motherboard. |
| EMI | a disturbance that affects an electrical circuit due to either electromagnetic conduction or radiation such as that emitted by machinery or fluorescent light bulbs. |
| EMP | A broadband, high-intensity, short-duration burst of electromagnetic energy--the ultimate terrorist weapon. |
| EPROM | A type of memory that retains its data when its power supply is switched off. Can be erased only by exposure to strong ultraviolet light. |
| EPP | A type of parallel port that can provide up to 2.5 MBytes of bandwidth. Also known as IEEE 1284. Used to connect printers to computers. |
| ERD | A specially formatted bootable media (usually floppy disk or CD) that can be used to restore a computer to a bootable state if the registry or other vital system components become damaged. |
| ESD | The sudden flow of electricity between two objects that can severely damage electronic equipment. |
| EVGA | An extension of the Video Graphics Array. |
| EVDO | A telecommunications standard for the wireless transmission of data through radio signals. |
| FAT | A computer file system architecture that is widely used on many computer systems and memory cards. Maximum volume size is 2TB. |
| FAT12 | A version of FAT that has a maximum volume size of 32MB. |
| FAT16 | A version of FAT that has a maximum volume size of 2GB. |
| FAT32 | A version of FAT that has a maximum volume size of 2TB. |
| FDD | A disk drive that reads floppy disks. |
| Fn | A key on the keyboard of a computer or laptop that is programmed to cause an application or operating system to perform certain actions. |
| FPM | Accesses a row of RAM without having to continually respecify the row. |
| FRU | A circuit board, part or assembly that can be quickly and easily removed from a computer and replaced without having to send the entire computer to a repair facility. |
| FSB | Carries data between the CPU and the northbridge. |
| FTP | A standard network protocol used to exchange and manipulate files over the Internet or other TCP/IP-based network. |
| FQDN | A domain name that specifies its exact location in the tree hierarchy of the Domain Name System. |
| Gb | 1,000,000,000 bits. |
| GB | 1,000,000,000 bytes. |
| GDI | A subsystem that most operating systems use for representing graphical objects and transmitting them to output devices. |
| GHz | Used to measure the clock rate of a CPU. |
| GUI | A type of user interface item that allows users to interact with programs in more ways than typing. |
| GPS | A U.S. space-based global navigation satellite system. |
| GSM | The most popular standard for mobile telephone systems in the world. Both signaling and speech channels are digital, making it a secong generation (2G) mobile phone system. |
| HAL | The driver for the motherboard that allows instructions from higher level computer languages to communicate with lower level components, such as directly with hardware. |
| HCL | A list of computer hardware that is compatible with a particular operating system. |
| HDD | A storage device that stores digitally encoded data on rapidly rotating rigid platters with magnetic surfaces. |
| HDMI | A compact audio/video interface for transmitting uncompressed digital data. Bandwidth is 10.2 Gbits/s. |
| HPFS | A file system created specifically for the OS/2 operating system to improve upon the limitations of the FAT file system. |
| HTML | The predominant markup language for web pages. |
| HTTP | An Application Layer protocol used for a request/response standard typical of client-server computing. |
| HTTPS | A combination of the Hypertext Transfer Protocol with the Secure Socket Layer/Transport Layer Security protocol to provide encryption and secure identification of the server. |
| I/O | The communication between a computer and a human. |
| ICMP | A protocol chiefly used by networked computers' operating systems to send error messages. |
| ICR | A handwriting recognition system that allows different fonts and handwriting styles to be learned by a computer during processsing. |
| IDE | A standard electronic interface used between a computer motherboard's data paths or bus and the computer's disk storage devices. |
| IDS | A device or application that monitors network and/or system activities for malicious activities. |
| UART | A piece of computer hardware that translates data between parallel and serial forms. |
| UDF | An external function which can be called from a PHP or SQL server, such as MySQL. |
| UDMA | A protocol for transferring data between a hard disk drive through the computer's data paths to the computer's RAM. |
| UDP | A protocol that enables computer applications to send messages to other hosts on an Internet Protocol network without requiring prior communications to set up special transmission channels or data paths. |
| UNC | Specifies a common syntax to describe the location of a network resource, such as a shared file, directory, or printer. |
| UPS | A power supply that uses batteries to supply power to a computer in the case of the input power failing. |
| URL | Specifies where an identified resource is available and the mechanism for retrieving it. |
