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E

eCommerce

Electric commerce: the conducting of business communication and transactions over networks and through computers. Specifically, ecommerce is the buying and selling of goods and services, and the transfer of funds, through digital communications.

eMail

Electronic mail. Mail composed and transmitted on a computer system or network.

Encryption

Encryption is the conversion of data into a form, called a ciphertext , that cannot be easily understood by unauthorized people. Decryption is the process of converting encrypted data back into its original form, so it can be understood.

Equity of Access

Equity of access means that all people have the information they need-regardless of age, education, ethnicity, language, income, physical limitations or geographic barriers.

(taken from ALA)

Expression

An expression in a programming language is a combination of values, variables, operators, and functions that are interpreted (evaluated) according to the particular rules of precedence and of association for a particular programming language, which computes and then produces (returns, in a stateful environment) another value.