STORAGE DEVICE

Ø MEMORY:-

1. Units of Memory

a. BIT, Nibbel, Byte, KB, MB, GB, TB

2. Types of Memory:-

a. Primary Memory:- (Volatilize Memory)

i. Register

ii. Cache

iii. RAM (Random Access Memory

iv. ROM (Read Only Memory)

b. Secondary Memory:- (NON-Volatilize Memory)

i. Magnetic Tape

ii. Magnetic Disk

iii. Hard Disk:- 50GB to 1TB

iv. Optical Disk:-

1. CD (Compact Disk):- 700 MB

a. CD-ROM

b. CD-R/CD-Worm

c. CD-RW

2. DVD ( Digital Versatile Disk):- 4.7 GB to 17 GB

a. DVD-ROM

b. DVD-R/DVD-WORM

c. DVD-RW

v. Other Storage Device:-

1. HD DISK(HIGH DEFINITION DISK) 25 GB to 50 GB

2. Flash Memory

3. USB Drive

4. Internet Storage

5. Enterprise Storage System

a. File Server

b. RAID System

c. Tape Library

d. DVD-R0M & CD-ROM Jukebox

e. Internet Storage