32 bit vs 64 bit

You’ve likely heard the terms 32bit and 64bit when shopping for pc hardware or checking software compatibly. But what does these terms actually mean and whats the difference between them? That’s what we’re going to look at in this video.
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32-bit and 64-bit are terms used to describe the architecture of a computer's CPU and its operating system. These architectures determine how much memory and data the CPU can process at a time known as memory addressing.
Memory addressing is the process in which the computer's CPU and software interact with the computer's memory or RAM to read or write data. Memory addressing involves specifying the location of data in memory, allowing the CPU to access and manipulate that data.
A 32-bit system can address a maximum of 4 GB (gigabytes) of RAM, so the CPU is only able to access and use 4gb of RAM at one time. As the CPU can use this much RAM at one time they are not well equipped for handling resource demanding software. A 32bit system would not be good for running a large spreadsheet, gaming, editing videos or really anything that involves more than some basic web browsing and word processing. Only very low budget machines such as some Chromebooks and older machines still use 32-bit architecture.
A 64-bit system can theoretically address an incredible 16 million TB of RAM at once! Obviously, no device in the world comes close to this limit currently and wont for decades to come, but the important thing to note is that it can make use of more than the 4GB of ram that 32 bit systems can. 64-bit systems are backwards compatible meaning they can also run old pieces of software designed for 32-bit systems. 32 but systems may struggle to run 64bit software due to their Ram limitations. So if you’re looking to do any kind of even slightly resource intensive tasks, a 64bit system is the choice for you.
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#32bit #64bit #cpu

[@techindex1]

Do you think we will see a device that will hit the 16 million TB limit this century?

[@SteveMacSticky]

My brain does this already

[@GoogleUser-uv9bo]

​@@SteveMacStickyUnconsciously 🤯🧠

[@UNMEASURED100]

No way

[@GoogleUser-uv9bo]

But 2 PB storage of brain is real thing.

[@user-ff6pq1eg8x]

Even Workstations at present are barely only making it into Terabytes of RAM and the 64-bit limit is about 16 exabytes equivalent to 16 billion gigabytes or 16 million terabytes. So 64-bit could still be around for another twenty or thirty years or more yet. So it looks 64-bit is not going away anytime soon. When the 64-bit cray-1 supercomputer was introduced in the mid 1970s the future had already arrived.

[@skyler6982]

How did we go from 4GB to THAT

[@TerrexoDesign]

32 bit can express 2^32 numbers which is 4 billion, so you can distinguish 4 billion memory addresses. 64 bits is 2^64... That's it.

[@jmir1]

By adding one bit, you double the number of memory addresses. 64-bit CPUs have 32 more bits in their memory addresses. If you double 4GB 32(!) times, you get around 16 million TB.

[@techindex1]

Incredible isn’t it, both comments above explain it very well, thank you both

[@user-gw1sh9qc2s]

LOL. We did all those things just fine on 32bit systems.

[@techindex1]

True but trying to run a modern game for example on a 32-bit system would not be a good experience if you could even get it to run! Thanks for watching 😊

[@alexk7467]

If we ever get there how powerful would a computer be with a 128 or 256 bit processor

[@techindex1]

This is a great question and one I had wondered too. It took me a while but I worked it out to be that a 128 bit processor could theoretically address 268,435,456 Geopbytes of RAM. For context there are 1,000 terabytes in a petabyte, 1,000 petabytes in an exabyte, 1,000 exabytes in a zettabyte, 1,000 zettabytes in a yottabyte, 1000 yottabytes in a brontobyte and 1000 brontobytes in a geopbyte. To further put that into perspective it’s estimated that the total amount of data that exists in the entire world is around 175 Zettabytes!

[@magicwizurd8970]

​@@techindex1theres probably many copies of data in the world sooo

[@ParisLuHv]

@@magicwizurd8970 it still exists. what's your point?

[@user-ff6pq1eg8x]

32-bit vs 64-bit feels like the 8-bit and 16-bit wars all over again only on a much more superior, longer, bigger and more massive scale.

[@techindex1]

Agreed!