Table of Contents
- 1 How many hexadecimal numbers are in a 48 bit address?
- 2 Can hexadecimal be used in memory addresses?
- 3 How many hex digits are in an ipv4 address?
- 4 How many addresses does a hexadecimal number increase the amount of memory?
- 5 How many bits does it take to address all the memory?
- 6 How many bits are needed to represent a single hex digit?
How many hexadecimal numbers are in a 48 bit address?
12 hexadecimal digits
A MAC address consists of 48 bits, usually represented as a string of 12 hexadecimal digits (0 to 9, a to f, or A to F); these are often grouped into pairs separated by colons or dashes. For example, the MAC address 001B638445E6 may be given as 00:1b:63:84:45:e6 or as 00-1B-63-84-45-E6.
Can hexadecimal be used in memory addresses?
Memory addresses are displayed as two hex numbers. An example is C800:5. The part to the left of the colon (C800) is called the segment address, and the part to the right of the colon (5) is called the offset. The offset value can have as many as four hex digits.
How many hex digits are in an ipv4 address?
The IP version 4 address is a 32-bit numeric address whereas IPv6is a 128-bit hexadecimal address.
How is hex stored in memory?
An even more efficient way to represent memory is hexadecimal form. Here, each digit represents a value between 0 and 16, with values greater than 9 replaced with the characters a to f. A single hexadecimal digit corresponds to 4 bits, so each byte of memory requires only 2 hexadecimal digits.
Are memory addresses numbers?
32-bit CPU uses 32 bits (4 bytes) to hold numbers. Memory addresses are numbers too, so on a 32-bit CPU the memory address consists of 32 bits.
How many addresses does a hexadecimal number increase the amount of memory?
The number of hexadecimal digits will increase the amount of addressable memory by 16. So one digit would allow just 16 addresses while two digits allow 256 addresses. With 4 digits you get 65536 addresses and with 8 digits you can reach up to 4 giga addresses.
How many bits does it take to address all the memory?
the original Altair only came with 256 bytes of memory, byte addressable, so 8 bits was enough to address all of memory. a modern PC might have 8GB, that takes 33 bits to address. there are 4 bits per hex digit, so divide those bit numbers by 4.
How many bits are needed to represent a single hex digit?
A single hex digit can represent 16 values (0 to F). Using this you can calculate how many bits are needed to represent a single hex digit. After that it is a simple math problem. 20 bits = 1/X * 20 hex digits. A pointer to calculate number of bits needed to represent 16 numbers – keep on dividing 16 by 2 till you reach 1.
How many numbers can a 16-bit memory cell represent?
A 16 bits memory cell can store one of 216 = 65536 different patterns. Therefore, it can represent (larger) numbers ranging from: 0 − 65535 . Example: how a computer can use 2 consecutive bytes as a 16 bits memory cell :