Why use RAM in computer

Random-access memory (RAM) is a type of computer data storage. A RAM device makes it possible to access data in random order, which makes it very fast to find a specific piece of information. Certain other types of storage are not random-access. For example, a hard disk drive and a CD will read and write data in a predetermined order. The mechanical design of these devices prescribes that data access is consecutive. This means that the time it takes to find a specific piece of information can vary greatly depending on where it is located on the disk.
RAM devices are used in computer systems as the main memory. RAM is considered volatile memory, which means that the stored information is lost when there is no power. So, RAM is used by the central processing unit (CPU) when a computer is running to store information that it needs to be used very quickly, but it does not store any information permanently.
Present-day RAM devices use integrated circuits to store information. This is a relatively expensive form of storage and the cost per unit of storage is much higher than for devices like a hard drive. However, the time to access data is so much faster for RAM that speed outweighs cost. A computer, therefore, uses a certain amount of RAM for fast-access, temporary storage of information and a much larger amount of non-random, permanent mass storage, like a hard disk drive. For example, a typical computer system may have two to eight GB (gigabytes) of RAM, while the storage capacity of the hard disk drive can be several hundred GB or even one TB .
But still, many of us don’t know the actual difference between RAM and ROM in a smartphone. That’s why today I am here with an article to help you in this chaos. Also, just before you think having so much RAM on an Android phone is enough and thus it is better than iPhone, how the RAM is managed on Android and iOS is much different.
, you can’t. Unlike PC, RAM on your smartphone can’t be upgraded.
It is true that more RAM means smoother performance as it becomes possible to keep more apps in the background.
Sometimes, some apps may slow down the performance of your smartphone. You have to doubt their legibility when huge performance issue occurs even in situations of freer RAM.
Now the differences between 1GB 2GB….etc is more space on RAM , more applications are loaded into RAM hence better Performance, more frequent apps, files , log files etc are loaded into RAM to makes the performance better
Let’s say you have one GB primary storage i.e. RAM . Some of the memory of one GB will be utilized by OS boot processes and rest will be available for the use of another applications. Consider one scenario where you start 4 applications. Memory allocated for the four processes will be among the memory which is left of one GB after OS utilization. If your four applications are consuming 100% RAM to process then no other application can be started as there is no memory left for the processing of that application.

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