# The main difference between 32-bit and 64-bit in computer operating systems is that 32-bit in computer operating systems

Source: Internet
Author: User

The main difference between 32-bit and 64-bit in computer operating systems is that 32-bit in computer operating systems

Windows 7 started after the Windows XP system. If you often pay attention to and install software, you will often hear 32-bit and 64-bit. What does this mean? What are their differences?

Generally, 32-bit and 64-bit refer to three situations.

One is a 32-bit or 64-bit CPU (the core processor of a computer .)

One is a 32-bit or 64-bit operating system.

One is a 32-bit or 64-bit application.

Only when all three of them are 32-bit or 64-bit can the 32-bit and 64-bit effects be realized.

Since it comes to 32-bit and 64-bit, there were 16-bit and 8-bit computers in the early days.

What is a bit?

Most of us know or have heard that computers use binary.

All pictures, software, sound, video, and games processed by the computer are in binary format in the memory.

Create a txt file on the desktop, write a 12345 file, and click Close to close the file.

Right-click to view properties.

First, we should note that the actual size is 5 bytes, but the occupied space is 4096 bytes.

Our hard disks are already above the TB level. How can this be converted?

1 TB = 1024 GB

1 GB = 1024 MB

1 MB = 1024KB

1KB = 1024 bytes)

1 Byte (Byte) = 8bit (BIT)

The new 5-byte text is 40 bytes if it is converted into a computer binary.

Our memory stick is actually a small lattice or contains many small locations to store data.

A small position is a single position.

We just entered 12345 and used 40 locations in the memory.

If my computer can only process two digits per second, it may take 20 seconds to open the file.

However, our current computer must be at least 32 bits and can process N 32 bits per second.

So I opened it in an instant.

Computers run at the same speed as trucks pull things.

How many tons can be pulled each time. How many times can be pulled every day.

Basically, these two determine the final operation efficiency.

The CPU cache, clock speed, hard disk read/write speed, and memory speed are actually the two values.

If the operating system is installed to 64-bit, the premise is that your CPU is also 64.

Sometimes there are a lot of problems to consider when installing software.

If you use a 32-bit software, there may be many incompatibility issues.

This is why many people spoke about Windows 7 when its 64-bit version was just released.

If you use a 64-bit CPU and a 32-bit operating system, it may not be a problem, but it may also cause problems because of backward compatibility.

If your CPU is 32-bit, it can be controlled at most when the CPU controls the memory.

Power 32 of 2 = 4294967296 (bit) = 4 (GB.

So the maximum theoretical control of 64-bit CPU is the power 64 of 2... This is an astronomical number.

But in fact, our current technology cannot implement that theoretical number.

However, at least some people install 32 GB or even GB memory.

If you use 8 GB memory for 32-bit CPUs and operating systems, it will be a waste of 4 GB memory.

Most of our computers now have 64-bit CPUs.

Therefore, if the memory exceeds 4 GB, you can directly install Windows 7 64-bit.

For the failed product of Windows 8 and the uncertain product of Windows 10

Please wait. Windows 7 64-bit is the most stable system I currently think.

How can we see the number of {operating system} on our computer? note that I am talking about the operating system.

Is it 64-bit or 32-bit? Right click --- [computer] --- [properties]

Pay attention to the red part of the image.

64 is 64.

The write 32 is 32.

If it is an XP system, it must be 32-bit.

32-bit CPU can only be installed with 32-bit systems, so 64-bit CPU can only be installed with 64 systems ??

A: No. A 64-bit CPU can be installed with a 64-bit system or a 32-bit system.

Only when a 64-bit system is installed can the optimal performance of a 64-bit processor (CPU) be realized!

Why have I never checked the number of CPUs in the flat fashion system, but the system has been installed successfully ??

A: Because your CPU is 64-bit, it can be compatible with 32-bit and 64-bit systems.

In fact: new products are all 64-bit, as long as your computer is new, it is generally 64-bit! 32-bit CPU has been eliminated.

Related Keywords:

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

## A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

• #### Sales Support

1 on 1 presale consultation

• #### After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

• Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.