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Computer Memory Organization

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by

Parvez Zamil

on 30 March 2015

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Transcript of Computer Memory Organization

Computer

Memory
Organization

Presented By
1.Nayeemul Karim (151-15-5410)

2.Khondoker Tanvir Ahmed (151-15-5336)

3.Wasif Sikder (151-15-5068)

4.Md. Al Amin (151-15-4924)

5.Parvez Zamil (15-15-53921)
Department of Computer Science and Engineering
Spring 2015
Section : R
Course Name: Computer Fundamentals
Course Code: CSE 111


Presented To
Ms. Nasrin Akter
Lecturer
Department of Computer Science and Engineering
We are going to show
What is computer memory
Computer memory types
Computer Memory Basics
Memory management
Memory hierarchy
How memories are organized
and work together

Computer memory
The devices used to store information for use in a computer
Volatile
Non Volatile
Computer Memory Basics
The CPU accesses memory according to a distinct hierarchy
ROM
Read-only memory
HDD
Magnetic
Nonvolatile
Large capacity
inexpensive
Slow
Virtual Memory
Portion Of Hard Disc
Contain Ram Image/Page files
RAM
DRAM(dynamic random access memory )
Level 1
CPU Cache
• Rom
• A hard disk
• Virtual memory
• Normal system RAM
•Level 1 and level 2 caches
•Registers(inside CPU)



nonvolatile
unchangeable
Types :

• PROM
• ROM
• EPROM
• EEPROM
• Flash memory

Hard Disc Drive
Stores each bit of data
in a separate capacitor
within an integrated circuit
a transistor
and a capacitor
are paired
to create a memory cell
Has to be dynamically refreshed
Less expensive
SRAM
Static random access memory
a form of flip-flop
holds each
bit of memory
memory cell takes
four or six transistors
never has to be refreshed
more expensive
used to create the CPU's speed-sensitive cache
Built right into the CPU
2 to 384 KB
Extremely Fast

Level 2
A dedicated
ntegrated circuit
on the motherboard
(built in the modern CPU )
256 KB to 8 megabytes (latest CPUs)
Very fast(but slower than L1)
Caches are designed
to alleviate the
time consumption
by making
the data used
most often by the CPU
instantly available
Registers
Built right into the CPU
contain specific
data needed
by the CPU
controlled directly
by the compiler
BIOS(basic input/output system )
How All Work Together
Turn on the computer
ROM loads data and performs POST(power on self test)
CPU Cache
***Computer Memory Organization
and working Process***
*in short*
Introduction to computers 6th and 7th edition

by
Peter Norton
Inside the pc
by
Peter Norton


Computer Organisation and Architecture

by
Morris Mano

Computer memory organization and Architecture

by
Carl Hamacher

External links

http://en.wikipedia.org/wiki/Computer_memory
http://en.wikipedia.org/wiki/Dynamic_random-access_memory
http://en.wikipedia.org/wiki/Static_random-access_memory
http://en.wikipedia.org/wiki/Read-only_memory
http://en.wikipedia.org/wiki/Hard_disk_drive
http://en.wikipedia.org/wiki/CPU_cache
http://en.wikipedia.org/wiki/Processor_register
http://computer.howstuffworks.com/computer-memory.htm
http://computer.howstuffworks.com/rom.htm
http://computer.howstuffworks.com/cache.htm
http://computer.howstuffworks.com/ram.htm
http://computer.howstuffworks.com/virtual-memory.htm

References
Loads OS from HDD to DRAM
Applications
RAM
CPU
Files are saved
back to HDD
Only the most used informations
Full transcript