Write notes on the following: 1. IP address 2. MAC address 3. Modem

1.	Write notes on the following: 1. IP address 2. MAC address 3. Modem
Answer» 1. IP address: An IP address has 4 parts numeric address. Each parts contains 8 bits. By using 8 bits we can represent a decimal number between 0 to 255(2 =256 numbers). Each part is separated by dot. A total of 4 × 8=32 bits used. But nowadays 128 bits are used for IP address. 2. Media Access Control(MAC) address: It is a unique 12 digit hexadecimal number(IMEI for mobile phones, it is a 15 digit decimal number) assigned to each NIC by its manufacturer. This address is known as MAC address. It is of the form. MM:MM:MM:SS:SS:SS. 3. Modem: It is a device used to connect the computer to the internet. It converts digital signal into analog signal (modulation) and vice versa (De modulation)

Answer»

1. IP address:

An IP address has 4 parts numeric address. Each parts contains 8 bits. By using 8 bits we can represent a decimal number between 0 to 255(2 =256 numbers). Each part is separated by dot. A total of 4 × 8=32 bits used. But nowadays 128 bits are used for IP address.

2. Media Access Control(MAC) address:

It is a unique 12 digit hexadecimal number(IMEI for mobile phones, it is a 15 digit decimal number) assigned to each NIC by its manufacturer. This address is known as MAC address. It is of the form. MM:MM:MM:SS:SS:SS.

3. Modem:

It is a device used to connect the computer to the internet. It converts digital signal into analog signal (modulation) and vice versa (De modulation)

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