The Common Types of Random-Access Memory (RAM)

Random-access memory, or RAM, is a common type of memory that is found within countless computer and electronic systems. Capable of reading and writing data in any order, RAM can handle information with rapid speeds that are not seen in other similar devices. Over the years, multiple types of RAM have come about, including SRAM, DRAM, and EDO RAM. In this blog, we will discuss the primary variations of RAM computer memory, allowing you to better understand their capabilities and uses.
Static random-access memory (SRAM) is a variation of RAM that takes advantage of latching circuitry for the storage of data bits. As a form of volatile memory, SRAM can only retain its data for as long as there is power provided to it. Nevertheless, the amount of power required for SRAM operations is low when idle, and such devices are known for their high performance and reliability. As compared to other forms of RAM, SRAM does not have to be refreshed for its performance, though will typically be more expensive. When implemented within a computer or electronic system, SRAM will typically be used for the cache and internal registers of a CPU, rather than acting as a form of main memory.
Dynamic random-access memory (DRAM) is a form of semiconductor memory device, utilizing capacitors and transistors to form memory cells that can retain data bits. The capacitors of memory cells always exist in either a charged or discharged state, those of which create binary values of a bit. As the electric charge of a capacitor will slowly diminish over time, DRAM technology requires a periodic memory refresh to restore charges and retain data. Similar to SRAM, DRAM is a form of volatile memory. As such, it will only hold onto data for as long as there is power being provided to the device. The most common use for DRAM is serving as the main memory of computers and graphic cards, though such devices may also serve similar roles in video game consoles and other digital electronics.
Extended data out random-access memory (EDO RAM) is an early variation of DRAM chip, invented to improve the performance characteristics of fast page mode DRAM (FPM DRAM). Unlike such early DRAM variations, EDO RAM was capable of reducing the time between cycles as a new cycle could begin while maintaining an active data output buffer from the previous cycle. Creating an overlap in operations, EDO RAM memory could improve performance over existing RAM types for the benefit of various systems while making personal computers cheaper to construct. While EDO RAM served as an advantageous memory option for a period of time, the 1996 release of SDRAM superseded the capabilities of EDO RAM, rendering it fairly obsolete.
When deciding between various random-access memory devices, one should consider the specific needs of their application or system. Additionally, each type of RAM will typically feature a range of speeds and technological generations, thus one should also consider the transfer rates they desire and whether or not a particular component is compatible with their system. Once you have determined exactly what you need, let the experts at ASAP IT Technology help you source everything with competitive pricing and rapid lead-times.
ASAP IT Technology is a leading distributor of top-quality electronic components and IT hardware, offering customers access to highly requested items from leading manufacturers such as Cisco Memory, Edge Memory, Kingston Memory, and Micron Technology. Take the time to explore our various catalogs at your leisure, and our team of industry experts is readily on standby 24/7x365 to assist you through the purchasing process as necessary. When you are ready to initiate an order, give our team members a call or email at your earliest convenience and they would be more than happy to assist you however they can!


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