RAM & ROM

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Difference between RAM and ROM
RAM(Random Access Memory)
ROM(Read only Memory)
1.
RAM is Random Access Memory.
1.
ROM is Read Only Memory
2.
RAM is the memory available for the operating system, programs and processes to use when the computer is running
2
.
ROM is the memory that comes with your computer that is pre-written to hold the instructions for booting-up the computer.
3.
RAM requires a flow of electricity to retain data (e.g. the computer powered on).
3
.
ROM will retain data without the flow of electricity (e.g. when computer is powered off).
4.
RAM is a type of volatile memory. Data in RAM is not permanently written. When you power off your computer the data stored in RAM is deleted.
4
.
ROM is a type of non- volatile memory. Data in ROM is permanently written and is not erased when you power off your computer.

Types of RAM and ROM

ROM

Programmable Read Only Memory (PROM)
Erasable Programmable Read Only Memory (EPROM)
Electronically Erasable Programmable Read Only Memory (EEPROM)

RAM
Synchronous Dynamic Random Access Memory (SDRAM)
Double Data Rate Synchronous Dynamic Random Access Memory (DDR-SDRAM)
Double Data Rate Revision 2 Synchronous Dynamic Random Access Memory (DDR2-SDRAM)
Double Data Rate Revision 3 Synchronous Dynamic Random Access Memory
Parts on the Motherboard

BIOS (Basic Input Output System) Chip
IDE connector
Floppy Drive Connector
PCI (Peripheral Component Interconnect) slot
Motherboard Battery
USB 2.0 header
Serial Chipset - South Bridge
ATA Connector
Motherboard controls
DIMM (Double Inline Memory Module) slots
CPU (Central Processing Unit) socket
ATX Power connector
Chipset - North Bridge (with heatsink)
PCI Express 1x Slot
PCI Express 16x slots
Firewire header

By: Harshavardhan Rajagopal

Class:9 Divison:N

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