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MEMORY SYSTEM ORGANIZATION AND ARCHITECTURE (INTERNAL HARD DISK (Capacity,…
MEMORY SYSTEM ORGANIZATION AND ARCHITECTURE
INTERNAL HARD DISK
Hard disk / hard disk drive / hard drive
Longitudinal recording
Contains one or more inflexible, circular platters
Perpendicular recording
Capacity
longitudinal or perpendicular recording
the number of platters
Aluminum, glass, or ceramic
material that allows items to be recorded magnetically on its surface
Each platter has two read/write heads
The location of a read/write head often is referred to by its cylinder
Each platter has two read/write heads
The location of a read/write head often is referred to by its cylinder,
Formatting
Track - narrow recording band
Sector - pie-shaped sections
Transfer rate - speed with which data, instructions, and information transfer
Access time - amount of time it takes a storage device to locate an item on a storage medium, or the time required to deliver
Network Attached Storage Devices
a server connected to a network with the sole purpose of providing storage.
An external hard disc
A removable hard disc
An external hard disc