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Storage Devices. Magnetic devices. Optical Devices. Solid State Devices. Amazon warehouse. Wal -mart warehouse. Small Press Warehouse. Performance related specs. Access Speed or Access Time Capacity Life-time Price per byte. Poster Activity. Store, to store and storage.

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Presentation Transcript
performance related specs
Performance related specs.
  • Access Speed or Access Time
  • Capacity
  • Life-time
  • Price per byte
store to store and storage
Store, to store and storage
  • I have stored my pictures in a CD.
  • I have to go to the store.
  • Your storage device isn’t working, so you need to get a new one.
  • Storage is an adjective
  • Store can be a noun.
  • Store can be a verb, to store.
byte bit
Byte? Bit?
  • 1 Byte = 8 bits
  • 1 Byte = 10101010
  • We use byte to represent characters.
  • So, if one byte is character A, then the computer would see it like the following 8 bits 01 00 00 01.
bytes kb mb gb and so on
Bytes, KB, MB, GB and so on...
  • Bytes
  • 1 Kilobyte = 1000 Bytes
  • 1 Megabyte = 1,000 KBs
  • 1 Gigabyte = 1,000 MBs
  • 1 Terabyte = 1,000 GBs
  • 1 Petabyte = 1,000 TBs
  • 1 Exabyte = 1,000 PBs
  • 1 Zettabyte = 1,000 EBs
  • 1 Yottabyte = 1,000 ZBs
how do we measure capacity
How do we measure capacity?
  • One word: Capacity.
  • With 160GB of storage and up to 36 hours of music playback,2 iPod classic lets you enjoy up to 40,000 songs or 200 hours of video wherever you go.1

Eachsongaverageweights 4 MB or 0.004GB

1 Actual capacity varies by content.

global data storage calculated at 295 ebs
Global data storage calculated at 295 EBs
  • Mankind's capacity to store the colossal amount of information in the world has been measured by scientists.
  • The study, published in the journal Science, calculates the amount of data stored in the world by 2007 as 295 exabytes.
  • http://www.bbc.co.uk/news/technology-12419672
digital content universe to be over 1 zettabyte in 2010
Digital content universe to be over 1 Zettabyte in 2010
  • The total amount of data stored in the world’s computers, will surpass a zettabyte. 
  • In just ten years’ time, the Digital Universe will grow by a factor of 44 to reach 35 zettabytes in 2020.