What is RAM used for?

Answer 1

There are two (or maybe 3) different types of memory in a computer. magnetic memory (a hard disk) is used for permanent storage. Data stored on a hard disk stays there until it is erased. however, it takes a relatively long time to access the data on it. RAM (Random Access Memory, semiconductor memory) is much faster than magnetic memory, but has much lower capacity, and loses its memory when the power is removed. Typically, the programs and the data you want to operate on are stored on the disk, for example, a word document and the word program. When you want to edit the word document, both the document and the program are copied from the disk to RAM. There the computer, under your control, performs the edits you want to perform. When you are done with the document, you "save" and the document is copied from the RAM to the disk (written), replacing the older copy there. When you exit the word program, it is deleted from RAM. A copy still exists on disk for next time. This is a simplification, as there are several levels of RAM, very fast and small for the immediate operations of the CPU and not as fast and large for operations a bit less used. There is also ROM, EEROM, magnetic tape, CDs, all other types of memory.
RAM is used to temporarily store data that is retrieved from the use of desktop applications and Web Browsers. RAM is the main reason why an application or browser is able to run until you want to close it. Without RAM it would be impossible to run any applications, games or, internet browsers on a computer.

Answer 2

Although ROM is a crucial component of the modern computer and its ability to store data, its actual function has remained a mystery to many users, and it is often confused with another form of computer memory, RAM. ROM is a storage system that holds valuable data that your computer needs to run properly.