Best communication software includes programs that access software and data from, and transmit data to, a computer in a remote location. Popular microcomputer communications programs include Crosstalk, ProComm, PC-Dial, Blast and Pc Talk.
Beside the communications software, the computer user usually needs a telephone line connected to a modem in his or her microcomputer. A modem is a device for translating digital signals from a computer into the analog signals required to transmit over a telephone line. A modem is also required in the microcomputer at the other end of the telephone line to translate the analog signals back into computer usable digital signals. In recent years, communications has changed the world of computing, bringing connectivity to many computer users. Connectivity is the name given to the electronic connections between computer systems or between information resources. The connection may be by means of telephone line, microwave transmission, or satellite.