OS Basics of Binary Addresses

by Online Tutorials Library July 14, 2022

Basics of Binary Addresses

Computer system assigns the binary addresses to the memory locations. However, The system uses amount of bits to address a memory location.

Using 1 bit, we can address two memory locations. Using 2 bits we can address 4 and using 3 bits we can address 8 memory locations.

A pattern can be identified in the mapping between the number of bits in the address and the range of the memory locations.

We know,

  Using 1 Bit we can represent 2^1 i.e 2 memory locations.   Using 2 bits, we can represent 2^2 i.e. 4 memory locations.   Using 3 bits, we can represent 2^3 i.e. 8 memory locations.   Therefore, if we generalize this,   Using n bits, we can assign 2^n memory locations.      n bits of address  → 2 ^ n memory locations   

these n bits can be divided into two parts, that are, K bits and (n-k) bits.

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