| ECP | Acronym for Extended Capabilities Port. A bi-directional parallel port mode that is about ten times faster than a standard parallel port. |
| E-mail | Abbreviation for electronic mail. 1. Messages sent across computer networks from one user to another. E-mail messages can contain text and attached files. 2. One of the features of the Scan Dialog Box, used for e-mailing images. See Scan Dialog Box. |
| Emboss | In an imaging program, a filter that creates a raised or sunken appearance on an image. |
| EPP | Acronym for Enhanced Parallel Port. A bi-directional parallel port mode that is about ten times faster than a standard parallel port. |
| EPS | Acronym for Encapsulated PostScript. A device-independent file format usually used in desktop publishing applications. Files saved in this format have ".eps" as a file extension. |
| Eudora Pro | Popular e-mail program by QUALCOMM. |
| Exit | Common command for closing running applications. |
| Expansion Slot | Sockets on a computer motherboard where extra hardware can be mounted and added to the system such as modems, sound cards, SCSI boards, etc. Expansion slots are commonly known as PCI or ISA slots. See PCI and ISA. |
| Explorer | 1. Windows Explorer: application in Windows 95/98/NT that provides an overall view of disk drives, directory folders and files. File or folders can be moved from one location to another in the Explorer. 2. Internet Explorer: Microsoft web browser. 3. iPhoto Plus 4 Explorer: Similar to the Windows Explorer, except the iPhoto Plus 4 Explorer only shows media files such as graphics or sounds. 4. Name of Windows 95/98 GUI shell. |
| Extensions | Files that add functions to the Macintosh operating system. Some extensions are system extensions, and add functions to the OS itself while others are Chooser extensions and add printer or scanner drivers. |
| Extensions Manager | Macintosh utility, which allows a user to create sets of extensions for, customized boot-up options. |