Extended Data Out DRAM comes in 70ns, 60ns and 50ns speeds. 60ns is the slowest that should be used in a 66MHz bus speed system (i.e. Pentium 100MHz and above) and the Triton HX and VX chipsets can also take advantage of the 50ns version. EDO DRAM doesn't demand that the column be deactivated … [Read more...]
FPM DRAM
All types of memory are addressed as an array of rows and columns, and individual bits are stored in each cell of the array. With standard DRAM or FPM DRAM, which comes with access times of 70ns or 60ns, the memory management unit reads data … [Read more...]
DRAM – Dynamic Random Access Memory
DRAM chips are large, rectangular arrays of memory cells with support logic that is used for reading and writing data in the arrays, and refresh circuitry to maintain the integrity of stored data. Memory arrays are arranged in rows and columns of memory cells called wordlines and … [Read more...]
RAM or Main Memory – PC / computer memory (DIMM, DRAM, SDRAM)
A PC's third and principal level of system memory is referred to as main memory, or Random Access Memory (RAM). It is an impermanent source of data, but is the main memory area accessed by the hard disk. It acts, so to speak, as a staging post between the hard disk and the processor. The … [Read more...]
What is L2 (Level 2) cache memory?
Most PCs are offered with a Level 2 cache to bridge the processor/memory performance gap. Level 2 cache - also referred to as secondary cache) uses the same control logic as Level 1 cache and is also implemented in SRAM. Level 2 cache typically comes in two sizes, 256KB or 512KB, and … [Read more...]
What is Level 1 (L1) Cache Memory?
The Level 1 cache, or primary cache, is on the CPU and is used for temporary storage of instructions and data organised in blocks of 32 bytes. Primary cache is the fastest form of storage. Because it's built in to the chip with a zero wait-state (delay) interface to the processor's … [Read more...]