is a type of RAM that stores each bit of data in a separate capacitor within an integrated circuit. The data contained in them should be periodically refreshed by the CPU to avoid losing them. This makes it very dynamic compared to other memory. In its structure, DRAM requires only one transistor and a capacitor per bit, so it has a very high density.
SRAM (Static Random Access Memory)
is the type of RAM (a type of semiconductor memory) that does not use a capacitor. This resulted in SRAM does not need to be refreshed periodically as with DRAM. It also once made a speed higher than DRAM. Based on the function is divided into Asynchronous and Synchronous.
EDORAM (Extended Data Out Random Accses Memory)
is a type of RAM that can store and retrieve the contents of memory at the same time, so he wrote read speed becomes faster. Commonly used in the past as a replacement PC Memory Fast Page (FPM) RAM.
SDRAM (Synchronous Dynamic Random Access Memory)
is the type of dynamic RAM speed is faster than the ability of the EDORAM and the tiles consists of 168 pins. RAM is synchronized by the system clock and is suitable for the system bus with speeds up to 100 MHz.
RDRAM (Rambus Dynamic Random Access Memory)
is a type of synchronous dynamic RAM produced by Rambus Corporation using the Bus Speed of 800 MHz, but has a narrow data path (8 bits). RDRAM has an advanced memory controller that not all motherboards can support it. Examples of products that use them are 3dfx Voodoo4 series.
NV-RAM (Non-Volatile Random Access Memory)
is a type of RAM that uses Lithium batteries in it so that the stored data will not be lost even if the power supply is turned off.
VGRAM (Video Graphic Random Access Memory)
is a type of RAM that is made specifically for video adapters. VGRAM capacity largely determines the quality of the image produced by the video adapter.