# 8-bit, 32-bit, 64-bit Processors?

by physics kiddy
Tags: 32bit, 64bit, 8bit, processors
 P: 135 Hello everybody, I want to ask what do 8-bit, 32-bit, 64-bit mean when it comes to processors.
 P: 225 without getting too technical, it relates to the largest value a computer can store in one block of memory. bits refer to the number of digits in a binary number. Its also the way a computer counts and performs calculations the main thing you will see with the processor is the amount of RAM they can use. a 32 bit computer can count sequentially from 0 to 4294967295 (2^32-1) thats where the 32 bit comes from. this means it can deal with about 4GB of ram MAX a 64 bit computer can do 0 to 18446744073709551615 (2^64-1) it can use a LOT more ram. Maybe give this a read http://en.wikipedia.org/wiki/64-bit
P: 754

## 8-bit, 32-bit, 64-bit Processors?

To simplify things even further, it generally refers to the maximum size (number of bits) that can be transferred at a time (from register to register).

Think of a highway: a single-lane highway can transfer 1 car at a time (but several in line, or serially), whereas a four-lane highway can transfer 4 cars at a time. So the highway is analogous to a data bus and the cars are bits. The wider the bus (highway), the more bits (cars) that can be transferred at a time.
P: 75
 Quote by Routaran the main thing you will see with the processor is the amount of RAM they can use. a 32 bit computer can count sequentially from 0 to 4294967295 (2^32-1) thats where the 32 bit comes from. this means it can deal with about 4GB of ram MAX a 64 bit computer can do 0 to 18446744073709551615 (2^64-1) it can use a LOT more ram.
Two years ago I bought a copy of Vista Ultimate that included both the 32-bit and 64-bit versions. At the time, it had 2 GB RAM, I thought that was sufficient, and I'd heard about problems with support for 64-bit drivers, so I loaded the 32-bit version.