Information can be exchanged between Fast Ethernet devices at up to 100Mbps. Many companies are installing Fast Ethernet in their corporate networks, either as the standard speed for all workstations or as high-speed links between multiple Ethernet workgroups. You can combine Ethernet and Fast Ethernet connections within the same network. This is generally accomplished by making connections of different types to the same switch. Other Ways to Connect Computers Together Ethernet and Fast Ethernet are not the only technologies you need to know about in order to connect your company's computers to the world.
Modulation uses sound waves rather than electrical signals in order to represent digital data.
When a modem creates sounds on a telephone line, it is modulating the sound tones to send a representation of bits to the other computer, and demodulating, or interpreting, the sounds it hears from the other computer back to the digital format in which it existed on the other computer. ISDN ISDN stands for Integrated Services Digital Network. ISDN is a way of sending digital data over regular copper wiring. Although ISDN requires a special kind of telephone line from your telephone company, ISDN service is available in most urban areas. The speed and reliability of ISDN makes it an ideal choice for connecting a group of computers to the Internet.