Comparisons
Home
Role of Storage Devices
Magnetic Tape
Hard Disk
Floppy Disk
CD-ROM
DVDs
Zip Disk
Flash memory stick
Magnetic Vs Optical
Comparisons
Backup and Archiving
Hardware related to use		  
Storage Size Magnetic/Optical Use
Magnetic Tape 20Gb - 200 Gb Magnetic Backing up the school network overnight

 
Hard Disk 40Gb - 250 Gb Magnetic Storing all of your software applications and documents

 
Floppy Disk 1.44 Mb Magnetic Copying a small homework file to take to school.  Unlikely to contain large images.

 
CD-ROM 650 Mb Optical

Storing general software applications.

Copying fairly large files to transfer from home to school.

 
DVD 4.7 Gb (single) 9.7 Gb (double) Optical Storing a large computer game or a movie

 
Zip Disk 100 Mb to 250 Mb Magnetic Transferring files between computers.  Need a specialist drive.  This storage media is not so commonly used nowadays.
Flash Memory Stick 32 Mb to 512 Mb Solid state Regularly transferring files between home and school, possibly with graphics.

 

 

 

 

© www.teach-ict.com  All Rights Reserved