Unavailable for use by anyone else or indicating unavailability engaged/mouse/IT

Get or try to get into communication (with someone) by telephone ring/operator/invent

Information Technology - the branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information Ring/IT/Dial

Of or relating to electronics; concerned with or using devices that operate on principles governing the behavior of electrons operator/access/electronic

Any instrument needed for an undertaking or to perform a service program/envelope/equipment

A system of world-wide electronic communication in which a computer user can compose a message at one terminal that can be regenerated at the recipient's terminal when the recipient logs in delete/message/email

Join by means of communication equipment dial/enclosed/connect

Connected to a computer network or accessible by computer online/printer/network

A white or silvered surface where pictures can be projected for viewing headline/phone/screen

The creation of something in the mind online/text/invention

A compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user laser/CD-Rom/fax

Letters and packages that are transported by aircraft airmail/machine/ring