binary or a cell

No. There is no limitation on size. A Googalplex of byte storage is 1 byte with a hundred zeros after it, and this is thought to be a minimalistic quantity in futuristic technology. Who knows, if any, what the limitations will be.

Bit and byte

Network

Core

Reactor

As this question has been featured in "Technology" space, the "GB" you have asked referes to "Gigabyte". Byte is a term used to refer the computer memory. (1 Byte = 8 Bits) So, 1 byte (B) = 8 bits 1 kilobyte (KB) = 1024 Bytes 1 gigabyte (GB) = 1024 kilobytes

I believe you meant difference between a bit and a byte. A byte is 8 bits.