Answer Posted / rohan
Dynamic RAM is the most common type of memory in use today.
Inside a dynamic RAM chip, each memory cell holds one bit
of information and is made up of two parts: a transistor
and a capacitor. These are, of course, extremely small
transistors and capacitors so that millions of them can fit
on a single memory chip. The capacitor holds the bit of
information -- a 0 or a 1 (see How Bits and Bytes Work for
information on bits). The transistor acts as a switch that
lets the control circuitry on the memory chip read the
capacitor or change its state.
Static RAM uses a completely different technology. In
static RAM, a form of flip-flop holds each bit of memory
(see How Boolean Gates Work for detail on flip-flops). A
flip-flop for a memory cell takes 4 or 6 transistors along
with some wiring, but never has to be refreshed. This makes
static RAM significantly faster than dynamic RAM. However,
because it has more parts, a static memory cell takes a lot
more space on a chip than a dynamic memory cell. Therefore
you get less memory per chip, and that makes static RAM a
lot more expensive.
So static RAM is fast and expensive, and dynamic RAM is
less expensive and slower. Therefore static RAM is used to
create the CPU's speed-sensitive cache, while dynamic RAM
forms the larger system RAM space.
| Is This Answer Correct ? | 74 Yes | 19 No |
Post New Answer View All Answers
Who invented os?
What are the major differences between Thread and Process?
How long does it take to run chkdsk?
Explain pcb.
What do you understand by registers?
How do I copy and paste a file location?
When the pipe is used?
What is a rootkit virus?
What is drawback of mvt?
How long should a chkdsk r take?
What are the different raid levels?
Explain briefly about loader and its functioning?
What are the reasons for process termination?
Explain briefly about compiler and its functioning?
Explain briefly about linker and its functioning?
