What is Random access memory
Random access memory is more popularly known as RAM. Random access memory is a form of computing data storage. In the modern technology, it takes the form of integrated circuits, which allow stored data to be accessed in any order or randomly. The term random thus refers to the trait that any piece of data can be returned in a constant time, regardless of its physical location and if or not it is related to the previous piece of data, unlike the other storage devices such as tapes, magnetic discs and optical discs, which rely on the physical movement of the recording medium or a reading head. In these aforementioned devices, the movement takes longer than data transfer, and the retrieval time varies based on the physical location of the next data.
The term RAM is often associated with volatile types of memory like DRAM memory modules, where the information gets lost after the power is switched off. Many other types of memory are RAM, including most types of ROM and flash memory called NOR-Flash. Modern types of writable RAM can store a bit of data in either the state of a flip-flop, as in SRAM (static RAM), or as a charge in a capacitor or transistor gate, as in DRAM (dynamic RAM), EPROM, EEPROM and Flash. Some types of RAM have circuitry to detect and correct random faults called memory errors in the stored data, using parity bits or error correction codes.
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