cs1101_09A_lec20 - 1 Access Time Access time - time the...

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CS1101 - Lec03 1 Access Time Access time - time the storage device takes to locate an item on the storage medium Magnetic Tape Backups Secondary Storage Primary Storage Flash Memory Card  (Solid State Storage) Hard Disk CD and DVD Floppy Disk Instructions/data waiting to be executed/processed  by the processor Digital pictures or files  to be transported Operating system, application software, user data and information Software, backups, movies, music Small files to be transported Memory (most RAM) To store faster transfer rate slower transfer rate To store
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CS1101 - Lec03 2 How data is stored on magnetic media? Magnetic storage stores data by magnetizing iron particl es on the surface 1. Before data is  stored, particles on the  surface are scattered in  random patterns. 2. When storing data, the drive's  read/write head magnetizes the particles,  and lead them in a positive or negative  direction ( 0 or 1).
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CS1101 - Lec03 3
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cs1101_09A_lec20 - 1 Access Time Access time - time the...

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