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32 bit and 64 bit explaind :
Look at your computer system as three parts: the hardware, the operating system and the application
programs. people have.
32-bit versus 64-bit
As the number of bits increases there are two
important benefits.
1.More bits means that data can be processed in
larger chunks which also means more accurately.
2.More bits means our system can point to or
address a larger number of locations in physical
memory.
32-bit systems were once desired because they
could address (point to) 4 Gigabytes of
memory in one go. Some modern applications
require more than 4 GB of memory to complete
their tasks so 64-bit systems are now becoming more attractive because they can potentially address up to 4 billion times that many locations.
Since 1995, when Windows 95 was introduced with support for 32-bit applications, most of the
software and operating system code has been
32-bit compatible.
Here is the problem, while most of the software available today is 32-bit, the processors we buy are almost all 64-bit.
So how long will the transition from 32-bit to 64-bit systems take?
The main issue is that your computer works
from the hardware such as the processor (or
CPU, as it is called), through the operating system
(OS), to the highest level which is your
applications. So the computer hardware is
designed first, the matching operating systems
are developed, and finally the applications appear.
We can look back at the transition from 16-bit to
32-bit Windows on 32-bit processors. It took 10
years (from 1985 to 1995) to get a 32-bit
operating system and even now, more than 15
years later, there are many people still using 16-
bit Windows applications on older versions of
Windows.
The hardware and software vendors learnt from the previous transition, so the new operating
systems have been released at the same time as the new processors. The problem this time is that there haven't been enough 64-bit applications.
Ten years after the PC's first 64-bit processors,
installs of 64-bit Windows are only now
exceeding those of 32-bit Windows.
If im missing anything then pleas tell.
