Types of RAM.
Types of RAM.
There are two types of RAM.
1. Static RAM
2. Dynamic RAM
1. Static RAM
2. Dynamic RAM
1. Static RAM
This is a type of RAM which is fastest compare to DRAM. SRAM use multiple Transistors for each memory cell. SRAM stores information as long as it is supplied with power. It is expensive then DRAM and access speed also fast ranges from 2-10 nanoseconds. Because of using transistors SRAM consumption low power . The density of this SRAM is also low.
The main example of SRAM is cache memory which is nearest to microprocessor and hold control signals and ready instructions to be executed .
This is a type of RAM which is fastest compare to DRAM. SRAM use multiple Transistors for each memory cell. SRAM stores information as long as it is supplied with power. It is expensive then DRAM and access speed also fast ranges from 2-10 nanoseconds. Because of using transistors SRAM consumption low power . The density of this SRAM is also low.
The main example of SRAM is cache memory which is nearest to microprocessor and hold control signals and ready instructions to be executed .
2. Dynamic RAM
DRAM use capacitors as storage unit. Capacitors holds the bit of information in binary form 0's and 1's. DRAM is slow in speed comparing to SRAM in speed . It is cheapest memory and have a high density. This memory consumption a high power. But nowadays DRAM is updated and power consumption problem is decreasing.
The example of DRAM is DDR1, DDR2 which access speed is from range 50 to 150 nanosecond.
DRAM use capacitors as storage unit. Capacitors holds the bit of information in binary form 0's and 1's. DRAM is slow in speed comparing to SRAM in speed . It is cheapest memory and have a high density. This memory consumption a high power. But nowadays DRAM is updated and power consumption problem is decreasing.
The example of DRAM is DDR1, DDR2 which access speed is from range 50 to 150 nanosecond.
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