If you compare it to the street, then say 32 bit a lane road and 64 bit a main road. More data can be transferred to a 64 bit bus than 32 bit, just like a street in main road, as more traffic can run.
Another notable difference is the capacity of the computing memory. Where 32-bit computers get the highest 3-4 gigabytes of RAM; For exactly 64 bit computers there is a minimum RAM of 4 Gigabytes.
32 bit processor:
The processors of this class were used as the main processors in the computer of 1990. At that time Intel Pentium E market was the only processor. Later, 32-bit AMD Proceeding came in time. The 32-bit processor's operating system and software are 32 bits depending on it. For example, Windows 95, 98 and XP are 32-bit operating systems, which are used in standard 32-bit processors.
64 bit processor:
The 64-bit computer reaches its hands in the beginning of 2000. Although early in the beginning of 1961, when IBM took up this processor's plan while making IBM their IBM 7030 Stretch Super Computer. So that Microsoft later released 64-bit versions of Microsoft's most popular Windows XP operating system so that it can be used in 64-bit processors. And since then, 64-bit versions of Windows Vista, Windows 7, and Windows 8 come into the market one by one. Not only that, other software is also made suitable for 64-bit computers, so that 64-bit computers can also be enabled Can work.
How to Work it?
Windows security measures 64 bits more than 32 bits, especially the Kernel Patch Protection is much stronger than 64 bits. Kernel is the processor, hard drive, device driver, and a combination of other software that is based on the operating system. Different operating systems use different types of kernels.
64 bit Windows can not install drivers without digital signatures. The digital sign is like a seal of a type of company. When the software attacks the virus or changes in it, the digital sign is replaced by which the windows can be captured. 32bit also has the option to not install the drivers without a digital sign, but this is not the default settings. But Windows 64 does not allow Windows Signature Broken.
64-bit processors usually have x64 and 32-bit processors running at x86 speed.
For 32 bits, usually 512MB to 4 GB RAM is recommended where 4 GB for 64 bit is recommended. It's less than that.