3.
Short History.
Definitions of RAM & ROM.
Difference Between RAM & ROM.
Working / Logic Gates / Design.
Advantages & Disadvantages.
Contents
4. Robert Dennard:
Robert Dennard was the inventor of ram: random
access memory, the device was patented in 1968 by
Dennard.
Jay Forrester
An Wang
Kenneth Olsen
invented in 1956,
1965 Sylvania
1970s Fairchild, Intel, Motorola
History
Intel's 1103 was the
world's first available
dynamic RAM chip
5. Random Access Memory or RAM is a form
of data storage that can be accessed
randomly at any time in any order and from
any physical location allowing quick access
and manipulation.
Read-only memory or ROM is also a form
of data storage that can not be easily altered
or reprogrammed. Stores instructions that
are not necessary for re-booting up to make
the computer operate when it is switched
off. They are hardwired.
Definitions
6.
Difference
RAM is volatile i.e. its
contents are lost when
the device is powered
off.
The two main types of
RAM are static RAM
and dynamic RAM.
It is non-volatile i.e. its
contents are retained
even when the device
is powered off.
For Boot your PC
The types of ROM
include PROM,
EPROM and EEPROM.
13. Silent: since there are no moving parts
RAM operation is completely silent.
Power-efficient: for the same reasons, RAM
uses much less power than disk drives.
Reduce your CO2 emissions and extend
your battery life.
Advantages
14.
Volatile: a power outage will cause
irrecoverable data loss, unless there is some
power backup system like a laptop battery.
Space-limited: RAM cost per bit is high, so
computers don’t include too much of it.
Disadvantages