Difference Between Serial And Random Access Memory Definitions

Alternatively referred to as main memory, primary memory, or system memory, RAM (random-access memory) is a hardware device that allows information to be stored and retrieved on a computer. RAM is usually associated with DRAM, which is a type of memory module. Because information is accessed randomly instead of sequentially like it is on a CD or hard drive, access times are much faster. However, unlike ROM, RAM is a volatile memory and requires power to keep the data accessible. If the computer is turned off, all data contained in RAM is lost.

Aug 17, 2010  What is the difference between the read only memory and the random access memory in. Asked in Definitions, The Difference Between. The direct access and the serial access data access,the. Sequential is a synonym of serial. As adjectives the difference between sequential and serial is that sequential is succeeding or following in order while serial is having to do with or arranged in a series. As a noun serial is a work, as a work of fiction, published in installments, often numbered and without a specified end.

Three 6 mafia bring sally up download. New users often confuse RAM with disk drive space. See our memory definition for a comparison between the two.

Types of RAM

Over the evolution of the computer, there have been different variations of RAM. Some of the more common examples are DIMM, RIMM, SIMM, SO-DIMM, and SOO-RIMM. Below is an example image of a 512 MB DIMM computer memory module, a piece of RAM found in older desktop computers. This memory module would be installed into one of the memory slots on a motherboard.

Additional RAM information

As the computer boots, parts of the operating system and drivers are loaded into memory, which allows the CPU to process the instructions faster and speeds up the boot process. After the operating system has booted up, each program you open, such as the browser you're using to view this page, is loaded into memory while it is running. If too many programs are open, the computer will swap the data in the memory between the RAM and the hard disk drive.

A computer's performance is largely attributed to the amount of memory contained within it. If a computer does not have the recommended memory to run the operating system and software programs being used, it will result in slower performance. The more memory a computer has, the more information and software it can load and process quickly.

What's the largest stick of RAM?

Currently, the largest single stick of RAM is 128 GB.

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History of RAM

The first form of RAM came about in 1947 with the use of the Williams tube. It utilized a CRT (cathode ray tube); the data was stored on the face as electrically charged spots.

The second widely used form of RAM was magnetic-core memory, invented in 1947. Frederick Viehe is credited with much of the work, having filed for several patents relating to the design. Magnetic-core memory works through the use of tiny metal rings and wires connecting to each ring. One bit of data could be stored per ring and accessed at any time.

However, RAM as we know it today, as solid-state memory, was first invented in 1968 by Robert Dennard. Known specifically as dynamic random-access memory, or DRAM, transistors were used to store bits of data.

Related RAM pages

DDR, DDR2, DDR3, DDR4, Dynamic storage, Hardware terms, Memory terms, Optane memory, Primary storage, RDRAM, SDRAM, SIMM