The best guide on computer memory

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 Computer Memory The Ultimate Guide 

• By MyTechTrick

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What is Computer Memory?

• Memory is the storage of data, instructions, and
  results received from various sources. It is also
  called remembering in common language, that is,
  memory. The device used by the computer to
  remember is called computer memory. It is like
  the human brain.

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Types of Computer Memory

• There are three types of computer memory
• Primary Memory
• Secondary Memory
• Cache Memory

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What is Primary Memory?

• The main memory of the computer is primary
  memory. Which stores the type of program or data,
  which is currently being processed by a Central
  Processing Unit (CPU). There are mainly two types
  of primary memory which include RAM, and ROM.
  Their storage capacity is very less but it
  provides much faster access to data than
  secondary storage (SDD and HDD).

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RAM It is a semiconductor memory. Technically,
RAM means read/write memory, that is, a device on
which writes and reads can be done. When any part
of the memory is read, no change takes place in
that part. But if any information is filled on
any part of the memory, then the contents already
in that part are automatically lost. DRAM SDRAM
RDRAM ROM The term ROM refers to "Read Only
Memory". Technically, the contents of ROM are
read-only and cannot be modified. They are
insincere. That is, even if there is no sudden
power outage, there is no loss to the information
stored in the ROM. Therefore, ROM is used to
store programs and data permanently. EPROM
PROM EAROM EEPROM
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What is Secondary Memory?

• Secondary memory is designed to achieve this
  limit of primary memory. It meets our needs for
  long-term and permanent storage. Therefore, the
  data which has to be stored for a long time is
  stored in the secondary memory. This is the
  computer memory that is not directly inbuilt in
  the computer. It is connected to the motherboard
  of the computer by some wires etc. In this, the
  data is recorded permanently.
• MAGNETIC DISKS MAGNETIC TAPES OPTICAL DISCS

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What is Cache Memory?

• Cache memory is more high-speed memory. Sometimes
  it is used to increase the speed of processing by
  building programs. This memory is used in
  computer systems to relieve the speed
  differential between main memory access times and
  processor logic. Cache memory is used in the CPU
  to store the fast-executed programs and the data
  needed for the current calculations.
• Source MyTechTrick