До 1980-х гг. мейнфреймы занимали господствующие позиции на компьютерном рынке. Мейнфрейм - универсальный, большой компьютер высокого уровня, предназначенный для решения задач, связанных с интенсивными вычислениями и обработкой больших объемов информации.
Repeat Dialer - If a number is busy, this program will recheck that number repeatedly for availability. You'll hear a ring signal when the line becomes free. You can redial on ring signals too. This is useful for radio contests and call-in television show voting.
Connect and Shar - A tiny server and client application allows you to connect and disconnect the Internet connection from any machine on the network. Works with any type of Internet connection be it standard
Dialup, USB modem DSL, Cable and satellite connections
DTMF Dial 184.108.40.206, It Dials! - Our phones havent always dialed with tone that we are used to today. Before the sixties, that was pulse (and still IS in some places and countries), a series of clicks, which was about as many clicks as the dialed digit was. Tone dialing (correctly called Dual-Tone Multi-Frequency, or DTMF) is about
Connection Keeper - a handy tool that will keep your dial-up connection alive! - Although we live in a broadband world now, there are still locations on the map where dial-up connections are the prevailing form of Internet connectivity. Besides their low data transfer speed, dial-up connections have another major disadvantage — they tend to get dropped by the provider if the server considers them