Broadly speaking, the modem functions are as follows:
Flow Control: The modem has different variations in the speed of delivery of the signal, thus will be a problem when they exchange data. Given this flow control adjusts the speed of the modem will benefit either the sending or receiving of data so there is no overload.
Correcting Error: Modem has the function of detecting errors in terms of whether the information received is damaged or not. Modems involved in this error correction dividing information into packets called frames. Before sending this information, the modem will be labeling each frame with a checksum. The checksum is a redundancy check method of presenting the data on the computer. Modem receiving the information will immediately check whether the information is in accordance with the checksum sent by each modem. If the checksum fails to match the information sent will be sent back.
Compressing Data: For compressing the data will be shared modem in units of bits sent. Bits are grouped together by the modem and will further compressing them.
Based on computer installation and its location, the modem can be differentiated into two, Internal and External Modem.
1. Internal Modem
Understanding the internal modem is a modem that looks similar to the LAN card which we attach the slot on one computer and using the power supply of the PC. The internal modem is a modem that is located in the CPU and embedded directly into the motherboard.
2. External Modem
Understanding the external modem is a modem that is located outside the computer's CPU. External modem connected to the computer via com port or USB. Installation of this modem is a modem by connecting it to the power and plug it into the adapter and then connect again.
Flow Control: The modem has different variations in the speed of delivery of the signal, thus will be a problem when they exchange data. Given this flow control adjusts the speed of the modem will benefit either the sending or receiving of data so there is no overload.
Correcting Error: Modem has the function of detecting errors in terms of whether the information received is damaged or not. Modems involved in this error correction dividing information into packets called frames. Before sending this information, the modem will be labeling each frame with a checksum. The checksum is a redundancy check method of presenting the data on the computer. Modem receiving the information will immediately check whether the information is in accordance with the checksum sent by each modem. If the checksum fails to match the information sent will be sent back.
Compressing Data: For compressing the data will be shared modem in units of bits sent. Bits are grouped together by the modem and will further compressing them.
Based on computer installation and its location, the modem can be differentiated into two, Internal and External Modem.
1. Internal Modem
Understanding the internal modem is a modem that looks similar to the LAN card which we attach the slot on one computer and using the power supply of the PC. The internal modem is a modem that is located in the CPU and embedded directly into the motherboard.
2. External Modem
Understanding the external modem is a modem that is located outside the computer's CPU. External modem connected to the computer via com port or USB. Installation of this modem is a modem by connecting it to the power and plug it into the adapter and then connect again.
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