（单词翻译:单击）
Email - This is electronic-mail, that is text messages that are sent over the internet.
Emoticons - This is a contraction2 meaning emotional icon1 that is made with common characters, such as :-) being made from :, -, and ).
Emulate3 - This is when a copy of a system is made (i.e., a duplication).
Encoder - A device that is utilized4 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.
EOF - This is the acronym6 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 reliability7 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 Modem8 - This is a modem that is located outside of the computer and connected to it with wires.
