It is numerous million times more than what an average workstation would require to access. Such a system can typically reference 16 exabytes (17,179,869,184 GB), or 18,446,744,073,709,551,616 bytes of memory.Ī 64-bit system (a computer with a 64-bit processor) can access more than 4 GB of RAM. The 64-bit microprocessor allows computer systems to process information, data, and memory addresses represented by 64 bits. Its actual limit is less than 3.5 GB (usually) because a portion of the register stores various other temporary values apart from the memory addresses. Thus, the 32-bit system is capable of addressing about 4,294,967,296 bytes (4 GB) of RAM. One bit in the register can typically reference an individual byte. A majority of the computers produced in the early 2000s and 1990s were 32-bit machines. It refers to the amount of data and information that your CPU can easily process when operating. It is a CPU architecture type that holds the capacity to transfer 32 bits of data. Meanwhile, the first Smartphone with a 64-bit chip (Apple A7) was the iPhone 5s.
The first fully 64-bit operating system was Mac OS X Snow Leopard in 2009. With an increase in the availability of 64-bit processors and larger RAM capacities, Microsoft and Apple both have upgraded versions of their operating systems designed to take full advantage of the new technology. In short, any amount of memory greater than 4 GB can be easily handled by it. A 64-bit system can access 2 64 memory addresses, i.e., actually 18-Quintillion bytes of RAM.A 32-bit system can access 2 32 memory addresses, i.e., 4 GB of RAM or physical memory ideally, it can also access more than 4 GB of RAM.
This type of processor tells us how much memory a processor can have access from a CPU register. In general, there exist two types of processors, namely a 32-bit processor and a 64-bit processor. In computing, a byte is the unit of data, and processing is generally denoted as bit processing. Next → ← prev Difference between 32 bit and 64 bit Operating System