The ICT Lounge
 
Section 3.7:
Comparison of Storage Media
 
In this section we will compare the storage media in terms of:
  • Amount of data stored (capacity)
  • Speed of data access
  • Poratability
  • Cost
Key Concepts of this section:
#
Know that storage media can be compared.
#
Be able to compare each of the storage media in terms of the 4 areas highlighted.
Note: The data on this page could change.

Solid State Media Comparison Tables
Comparing the amount of data stored (storage capacity)
Low storage capacity

1.44MB - 800MB
# Floppy disk
# CD-ROM, CD-R, CD-RW
Medium Storage Capacity

4.7GB - 512GB
# DVD-ROM, DVD-R, DVD-RW
# DVD-RAM
# Blu-ray discs
# Micro SD card, SD card
# Memory stick
High storage capacity

1TB - 185TB
# Solid state hard drives
# Fixed hard disk, Portable hard disk
# Magnetic tape

Comparing the speed to access data
Slow access speed


# Magnetic tape
# Floppy disk
Medium access speed

# CD-ROM, CD-R, CD-RW
# DVD-ROM, DVD-R, DVD-RW
# DVD-RAM
# Blu-ray
# Fixed hard disks, Portable hard disk
Fast access speed

# Memory stick
# Solid state hard drive
# Micro SD card, SD card

Comparing how portable each storage media is
Not portable at all


# Fixed hard disk
Quite portable

# Solid state hard drive
# Magnetic tape
# Portable hard disk
Very portable

# CD-ROM, CD-R. CD-RW
# DVD-ROM, DVD-R, DVD-RW, DVD-RAM
# Floppy disk
# Micro SD card, SD card
# Memory stick

Comparing the cost
Very cheap

£4 - £10 - for packs
# Floppy disks
# CD-R, CD-RW
# DVD-R, DVD-RW, DVD-RAM

Fairly cheap

£15 - £50 -
for 64Gb and above
# Memory stick
# Micro SD card, SD card
# Portable hard disk
Expensive

£50 - £300 - for 1TB and above
# Fixed hard disk, Portable hard disk
# Magnetic tape
# Solid state hard drive