11. Storage Device Comparison

Size / Capacity Comparison
Storage Device Approximate size
Floppy Disk 1.44 Mb (smallest capacity)
Zip Disk 100 Mb
CD 650 Mb
Flash memory 1 Gb - 8 Gb
DVD 4.7 Gb
Magnetic Tape Over 100 Gb
Hard Disk Around 120 Gb - 1 Terabyte (largest capacity)

 

Speed of access to data
Storage Device Order of speed of access to data
RAM and ROM Fastest
Hard Disk  
Flash Memory Stick  
DVD / CD  
Zip Disk  
Floppy Disk  
Magnetic Tape Slowest

 

Cost per Gigabyte of storage
Storage Device Order of cost per gigabyte
Magnetic Tape Cheapest
Hard Disk  
DVD / CD  
Flash Memory Stick  
Zip Disk  
Floppy Disk Most expensive

 

 

 

 

 

 

 

 

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