What is sdram?

SDRAM

Synchronous dynamic random access memory (SDRAM) is dynamic random access memory (DRAM) that is synchronized with the system bus. Classic DRAM has an asynchronous interface, which means that it responds as quickly as possible to changes in control inputs. SDRAM has a synchronous interface, meaning that it waits for a clock signal before responding to control inputs and is therefore synchronized with the computer's system bus. The clock is used to drive an internal finite state machine that pipelines incoming commands. The data storage area is divided into several banks, allowing the chip to work on several memory access commands at a time, interleaved among the separate banks. This allows higher data access rates than an asynchronous DRAM.

Read more about Sdram.

Some articles on sdram:

Micron Technology - Products
... Micron makes DRAM Memory components and modules, including SDRAM, DDR SDRAM, DDR2 SDRAM, DDR3 SDRAM, LPDRAM, RLDRAM, PSRAM, and multi-chip packages ...
SDRAM - See Also
... GDDR (graphics DDR) and its subtypes GDDR2, GDDR3, GDDR4, and GDDR5 SDRAM latency List of device bandwidths Serial presence detect - EEPROM with timing data on SDRAM modules SDRAM Tutorial - Flash ...
Macintosh Hardware - Expandability and Connectivity - Memory
... (30 and 72-pin), proprietary 168-pin DIMMs, and later, industry-standard SDRAM and DDR ... Current Macs use regular 1066Mhz DDR3 SDRAM, except for the Mac Pro and the Xserve that uses 1066 MHz DDR3 ECC SDRAM ...
Technical Details - Dell Dimension 9xxx Series
... Width Depth Weight 9100 Intel 945P Express Intel Pentium 4 with HT/Pentium D DDR2 SDRAM Four DDR2 SDRAM sockets 4096 MB 533- and 667-MHz DDR2 unbuffered SDRAM PCI Express (x16 ...
SDRAM Latency
... SDRAM latency refers to delays in transmitting data between the CPU and SDRAM ... SDRAM latency is often measured in memory bus clock cycles ... This also adds to the total SDRAM latency ...