1.3. Memory

Memory stores data needed by other components. It is used in several areas of the server, including the main system, cache, video, and drives.

Memory is sometimes called RAM (random access memory). The basic types of RAM include dynamic ram (DRAM) and static RAM (SRAM).

DRAM, shown in Figure 1-3, is the most common memory type found in server memory subsystems. This memory technology is inexpensive but very slow compared to processor requirements.

Figure 1-3. Typical DRAM memory.

SRAM is used most exclusively in cache implementations. This memory technology is extremely fast, but is more expensive than DRAM and generates significant heat.