First of all, let’s start with 32 bit / 64 bit. Our bit is simply one of the most basic units used in computing and digital communications. There are basically two operating systems on your computer: 32 bit and 64 bit. 32 bit / 64 bit is the data passing bus width between our Radom Access Memory (RAM) and the microprocessor, in other words, how the CPU handles datasets. 32 bit and 64 bit This also depends on how much bit system can run on that CPU and how fast.