Page 505 - PowerPoint Presentation

CAVITE STATE UNIVERSITY
T3 CAMPUS
Department of Information Technology ITEC 90 – Network Fundamentals

Three basic types of RAM:
1. Dynamic RAM (DRAM) – This kind of RAM needs to be recharged by the CPU. If not, it
loses its contents. There are many variations of DRAM such as:
 Synchronous DRAM (SDRAM) – faster than DRAM because it is synchronized to
the system clock
 Double Data Rate (DDR) SDRAM – faster than SDRAM because they transfer data
twice for each clock cycle
 DDR2 and DDR3 SDRAM – faster than DDR SDRAM
 ambus DRAM (RDRAM) – type of DRAM faster than SDRAM that uses pipelining
techniques
2. Static RAM (SRAM) – This kind is faster and more reliable than any form of DRAM.
Unlike the DRAM, this does not need to be re-energized. However, it is much more expensive
and it used for special purposes.
3. Magnetoresistive RAM (MRAM) – This kind stores data using magnetic charges instead
of electrical charges. It has greater storage capacity, consume less power, and faster access
times.

The RAM chips are housed in a small circuit board called the memory module, which
is inserted into the motherboard.
Three types of memory modules:
1. Single Inline Memory Module (SIMM) – this has pins
on opposite sides of the circuit board which connect together
to form a single set of contacts. This houses SDRAM chips
along with DIMMs.
2. Dual Inline Memory Module (DIMM) – the pins on the
opposite sides of the circuit board do not connect and form
two sets of contacts. This houses SDRAM chips along with
SIMMs.
3. Rambus Inline Memory Module (RIMM) – this houses
RDRAM chips

The computer will need a certain amount of memory to be able to handle programs,
data, and information, depending on the types of applications used.
The more RAM a computer has, the faster the computer will be.
 To be able to use basic application software such as Office Suite, one needs at
least 1GB of RAM.
 Using programs and multimedia should have at least 4GB.
 Playing modern games or using editing software will require at least 8GB.
Today the RAM ranges up to 64GB depending on the programs that will be used for the
computer.

Cooling Technology
Cooling Technologies are essential in avoiding the computer from overheating and
maintaining a good, well-ventilated system.

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