Secondary Storage Media Flashcards

1
Q

What are the Classifications of Secondary Storage Media?

A
  1. Magnetic Tape
  2. Magnetic Disk
  3. Optical Disk
  4. Flash Memory
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2
Q

What is Magnetic Tape

A

A reel of ribbon with tracks that each represent a bit. Store data as magnetised spots. Cheap and large capacity, Sequential. Eg. Cassettes or video tape.

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3
Q

What are Magnetic Disks?

A

Provide direct access to data stored. Capacity and access speeds of disks vary with each device.
Eg. Floppy and Hard.

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4
Q

What are the Characteristics of a Floppy Disk?

A
  1. Has a rigid plastic outer cover.
  2. Inexpensive
  3. Reusable
  4. Uses magnetised spots.
  5. Has a capacity of 1.44MB.
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5
Q

What is a Hard Disk?

A

Hard/Fixed disks are normally permanently installed in computer. Suitable for storing data and programs, which require large storage areas.
Types; External, Internal and Solid State.

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6
Q

What are the types of Optical Disks?

A
  1. Compact Disk (CD)
  2. Blue - ray disk
  3. Digital Versatile Disk (DVD)
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7
Q

What are the types of CDs?

A
  1. CD-ROM: Read only and made by software and music manufacturers.
  2. CD - R: Recordable, blank disk. Only once.
  3. CD - RW: Rewriteable. Record and then re-record several times.
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8
Q

What is Flash Memory?

A

A special type of EEPROM and is non-volatile.
Offers direct access and is more durable and reliable.
Eg. USB flash drive
Flash Memory Cards.

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