Phones, tablets, desktop, and laptops all run on 64 bit operating systems. It has been more than ten years since the desktop OS makers moved to the 64-bit architecture for making speedier applications. However, it was not until 2013 that the iPhones moved to 64-bit; it was the introduction of the iPhone 5S which changed the scenario and at present, Apple does not allow app developers to publish 32-bit applications of the App Store.
macOS Catalina, the latest version of the operating system (OS) which powers the Mac computers dropped support for 32-bit applications and the situation has gone havoc for a lot of people. People who depended on 32 bit apps on their Mac can no longer use their applications on macOS Catalina and future versions of the software.
It was a good move from Apple as the company is reducing the use of legacy software on their computers and moving to the next stage in the world of computing. We have had 8 bit, 16 bit, and 32 bit in the past. We now use 64 bit operating system on almost all our computers but what comes after this?
How much RAM is enough?
The answer is 128 bit. But a lot of people argue that its not going to happen anytime soon as the computers we use today have surplus amount of RAM with an architecture that uses it to the full potential. According to a Quora user, the 64 bit architecture is theoretically capable of using upto 17 billion GB of RAM which is not expected to be used at least for the next hundred years unless we see a paradigm shift in the world of computing.
Will we see Apple release macOS based on 128 bit architecture any time soon? Maybe not for the next two years at least. However, eight or nine years, multiple Apple related blogs reported that the Mac OS X which was supposed to release the next year would use 128 bit architecture but that never happened.