In late 2000 IBM and German semiconductor company Infineon Technologies AG announced plans to collaborate in the development of Magnetic Random Access Memory (MRAM) - a breakthrough memory technology that … [Continue reading]
Magnetic RAM
Dual Channel DDR Memory
The terminology dual-channel DDR is, in fact, a misnomer. The fact is there's no such thing as dual-channel DDR memory. What there are, however, are dual-channel platforms. When properly used, the … [Continue reading]
DDR2 DRAM
The transition from DDR to DDR2 memory was more evolutionary than revolutionary, the DDR2 architecture being essentially the same as that of its predecessor, with a number of enhancements designed to provide greater bandwidth and other … [Continue reading]
DDR SDRAM explained
Double Data Rate DDR) SDRAM is the other competing memory technology battling to provide system builders with a high-performance alternative to Direct RDRAM. As in standard SDRAM, DDR SDRAM is tied to the system's FSB, the memory and … [Continue reading]
PC133 SDRAM
Although most of the industry agrees that Rambus is an inevitable stage in PC development, PC133 SDRAM is seen as a sensible evolutionary technology and one that confers a number of advantages … [Continue reading]
SDRAM
The more recent Synchronous DRAM memory works quite differently from other memory types. It exploits the fact that most PC memory accesses are sequential and is designed to fetch all the bits in a … [Continue reading]
EDO and BEDO DRAM – History and Evolution of Product
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 … [Continue reading]
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 … [Continue reading]
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 … [Continue reading]
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 … [Continue reading]