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Description: how computer memory are divide, these notes are suitable for a first year student who is learning computer or other fields related to computer
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Types of Computer Memory
Main memory is divided into;
ROM AND RAM
RAM
DRAM, SDRAM, EDO
ROM
PROM, EPROM
RAM (Random Access Memory), Also referred to as main memory, primary storage or internal
memory
...
It is used
to hold programmers and data during processing
...
I
...
DRAM – Dynamic RAM
III
...
ROM chips
are non-volatile, so the contents aren’t lost if the power is disrupted
...
It is used to
hold instructions for starting the computer called the bootstrap programmer
...
States are permanently manufactured into the chip
...
After they are programmed
PROM behaves like ROM – the circuit states can’t be changed
...
PROM chips are, for
example, used to store video game instructions
...
However, the contents of the chip can be erased and the chip can be reprogrammed
...
The controller for a robot arm on an assembly line is an example of EPROM
use
...
PROM (Programmable Read Only Memory) – It is written onto only once using special
devices
...
ii
...
Cache Memory - This is high-speed memory that a processor can access more quickly than RAM
...
Level 1 (L1) cache is located on the processor;
Level 2 (L2) cache is located between the processor and RAM
Description: how computer memory are divide, these notes are suitable for a first year student who is learning computer or other fields related to computer