What is RAM?
In computing, RAM (an acronym for Random Access Memory) is a type of operational memory in computers and information systems, where most of the software is executed, from the operating system itself to application software and other similar programs.
The term "random" refers to the ability to record or retrieve information without the need for a sequential order (as occurs, on the other hand, in ROM or Read-Only Memory). RAM is a memory with free access, which the system always has on hand, allowing fast and agile access. On the other hand, RAM is a form of temporary, short-term memory, which resets when the system is turned off or restarted. That is why, when the computer is turned on, the basic operating modules stored in ROM (such as POST or BIOS) perform a check of the RAM to ensure it is operational and that the necessary software can be loaded into it to start the system.
RAM is characterized by the following:
It is freely accessible . The system accesses it randomly, that is, without any established sequential order, and as quickly and efficiently as possible.
It works in the short term . Once the system is rebooted or shut down, the RAM is blank so it can be reused during the next cycle.
Determines simultaneous computing capacity . Since this is where the computer's programs run, the amount of RAM in the system determines how many things it can do at the same time.
It's bidirectional . Data can be entered or "written" into RAM, as well as extracted or "read" from it, unlike other types of memory, such as ROM.
It can be fixed or expandable . On some systems, the amount of RAM is predetermined and cannot be increased, while others allow you to add new modules to increase system memory.
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