Types of Modem

Types of modem:

Different types of modems are as following,

• External Modem:

It is attached to the system unit as an external device through telephone line. It is connected to the telephone wall jack by another cable. External modem is connected to computer using serial cable to COM1 or COM2 port. It requires external power supply. It is easy to setup. It is expensive.

• Internal Modem:

It is a circuit board that is inserted into an expansion slot on the motherboard. Internal modem cannot be moved from one computer to another easily. It is difficult to setup than other types of modem. It is less expensive than external modem.

• Wireless Modem:

It transmits the data signals through air instead of cable. It is also known as radio-frequency modem. It is designed to work with cellular technology and wireless local area networks.