What is the maximum size of memory that can be addressed with 64-bit address bus and 8 bit data bus?

Limits of processors In principle, a 64-bit microprocessor can address 16 EiB (16 × 10246 = 264 = 18,446,744,073,709,551,616 bytes, or about 18.4 exabytes) of memory. However, not all instruction sets, and not all processors implementing those instruction sets, support a full 64-bit virtual or physical address space.

What will be the maximum capacity of memory which uses an address bus of size of 12 bit?

4 MB
2.1. The data memory address bus is 12 bits, with the capability of addressing up to 4 MB. The memory in general consists of 16 banks, each of 256 bytes.

What will be extended memory size of a processor having 32 bit address lines?

For example, an 8-bit-byte-addressable machine with a 20-bit address bus (e.g. Intel 8086) can address 220 (1,048,576) memory locations, or one MiB of memory, while a 32-bit bus (e.g. Intel 80386) addresses 232 (4,294,967,296) locations, or a 4 GiB address space.

What would be the physical address space of a 32-bit address bus?

4 Gbytes
On a 32-bit system, the address bus was also 32 bits wide, for a physical address space of 4 Gbytes.

How many bits are used in address bus?

In modern computers, the address buses are generally of 36 bits. With 36 bits of address bus, theoretically, a main memory of 64 GB can be accessed.

What is the maximum size of byte addressable memory that could be accessed using a 32-bit address bus?

7 Answers. Yes, a 32-bit architecture is limited to addressing a maximum of 4 gigabytes of memory. Depending on the operating system, this number can be cut down even further due to reserved address space.

What is the address space in a system with 32-bit addresses?

4 gigabytes
In 32-bit Windows, the total available virtual address space is 2^32 bytes (4 gigabytes).