A bit is the smallest unit of information in the binary system. Currently the most common modem rates are 28,000 bps and 33,600 bps. However, newer modems exist that are capable of communicating at even higher speeds. A modem can be used to access and search large databases which might store financial data, news reports, or travel information. For example, if you go to a travel agent to book an airplane ticket, the agent will most likely use a computer with a modem to connect to an airline's database to check the availability of flights.
Telecommunications makes it possible for people to work at home rather than in an office.
This is referred to as telecommuting. Writers and news reporters can write their stories at home on a word processor and then transmit their word processor files to their office which might be many miles away. Financial consultants, accountants, and travel agents are able to work at home by accessing databases and other information with a modem. Telecommunications also makes access to the Internet possible. People who subscribe to a bulletin board service can post messages by calling the BBS's computer and transmitting them.