The memory is utilized to save information as well as instructions. Memory in computers is the storage or space that is not used by the computer in which data is to be processed, and the instructions necessary for processing are kept. We imagine it as the Human Brain. Memory is the most efficient storage component for computer users to store data, programs, etc.
Computer memory is a variety of storage media. Some can be used to keep data for a short period, while certain types of storage media can be used for the duration of time. Memory is composed of instructions and the data saved to the computer by its Central Processing Unit (CPU).
Types of Computer Memory
There are two kinds of Computer Memory which are described in detail:
Primary Memory / Volatile Memory
Primary Memory can also be referred to as volatile memory since it cannot store data for a long time. Primary memory is the choice of any memory portion when a user is looking to save information in memory, but it cannot be permanently stored in the place. There is also a different name for it, i.e. RAM.
Random Access Memory (RAM)
The storage that is the primary one is known as the random access memory (RAM) because of the randomization of memory locations as well as processes. It can perform writing and read actions on the memory. If power outages occur in the system during a memory access, the system will lose its information permanently. So, RAM is volatile memory.
RAM is categorized into these types:
- Secondary Memory / Non-Volatile Memory
Secondary memory is an external and permanent memory that can be used for storing external storage media like magnetic disks, floppy disks, magnetic tapes, magnetic disks, and other cache devices. Secondary memory is comprised of the following kinds of components.
Read-Only Memory (ROM):
ROM is an indefinite memory location that provides a variety of standards to store information. However, it operates with a read-only operation. Data loss is not a problem when power fails during a computer’s ROM memory operation.
Memory for ROM has a variety of models. Some of them are:
- PROM Programmable Read-Only Memory (PROM) keeps massive storage media but doesn’t provide features to erase in the ROM. This RO keeps PROM chips from writing data once and reading a large amount of data. Other programs cannot erase the programs or the instructions created inside PROM.
- EPROM Erasable, Programmable Read-Only Memory was developed to overcome the issues of PROM and RAM. The EPROM user can erase EPROM’s data by focusing on ultraviolet light after the chip erases itself when it is to be reprogrammed.
- EPROM: Electrically Erasable Programmable Read-Only Memory that is similar to EPROM but employs an electric beam to erase data of ROM.
Last but not least, Cache Memory provides faster access to data and storage by keeping an instance of programs or data regularly accessed by the Processor. So when a processor needs data that already exists in an instance stored in its cache, memory will not transfer towards the memory of the central system or hard disk to retrieve the data.
We hope you’ve gathered enough information on memory and the various types. Please comment below and let us know your thoughts on the article.