Ease of Access: Microsoft's products that help assist people with physical limitations get full use of their computers.

e-mail attachment: A file that is attached to an e-mail message.

encryption: The translation, or scrambling, of data into a secret code.

Error Checking: A Windows tool that can examine a hard drive and fix many common drive errors.

Ethernet: A local-area network (LAN) architecture developed by Xerox Corporation in cooperation with DEC and Intel in 1976.

external storage media: External devices such as peripheral hard drives, DVD drives, flash drives, or memory card readers.