电信专业英英词典E-2_电脑电信

　email - this is electronic-mail, that is text messages that are sent over the internet.

　emoticons - this is a contraction meaning emotional icon that is made with common characters, such as :-) being made from :, -, and ).

　emulate - this is when a copy of a system is made (i.e., a duplication).

　encoder - a device that is utilized to alter a signal electronically so that it can only be viewed with a receiver equipped with a decoder.

　encryption - this is when data is put into a coded form for protection, and only those with the proper access information (i.e., the encryption code) can see the data.

　eoc - see edge of coverage.

　eof - this is the acronym for end of file.

　equatorial orbit - an orbit that is parallel to the earth's equator.

　error - this is any sort of general incorrect or unwanted procedure or piece of data.

　error control - this is the same quality control, and it involves checking the reliability of received data.

　escape sequence - this is a sequence of characters that is meant to be read as an escape command.

　exit - to terminate or log-off from a program.

　export - to move data from one program out to another (and convert it if necessary). this is the opposite of import.

　extension - (1) this is an additional telephone that is connected to one line, or (2) the second part of a filename, signifying the type of file it is (i.e., with which program you should view the data).

　external modem - this is a modem that is located outside of the computer and connected to it with wires.