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Storage by Mind Map: Storage
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Hard Disks



Read/Write heads


Transfer Rate

Access Time

Secter and minute

Ravolution per minute

How a Hard Disk works

1. Circui board controls the movement of the head actuator and small motor.

2. A small motor spins the platters while the computer is runner.

3. When software request a disk access, the read/write head determine the current or new location of data.

4. The head actuator positions the read write head arms over the correct location on platters to read or write data.

Flash Memory Storage

USB flash drives

USB flash drives plug into a USB port on a computer or mobile device


An ExpressCard module is a removable device that fits in an ExpressCard slot

Memory Card

A memory card is a removable flash memory device that you insert and remove from a slot in a computer, mobile device, or card reader/writer, CompactFlash ( CF ), Secure Digital ( SD ), Secure digital High Capacity ( SDHC ), microSD, microSDHC, xD Picture Card, Memory Stick, Memory Stick Micro ( M2 )

Cloud storage

Cloud storage is an Internet service that provides storage to computer users

Optical Discs

An optical disc consists of a flat, round, portable disc made of metal, plastic, and lacquer that is written and read by a laser

Other Types of Storage


Tape is a magnetically coated ribbon of plastic capable of storing large amounts of data and information

Tape drive

A tape drive reads and writes data and information on a tape

Magnetic stripe card

A magnetic stripe card contains a magnetic stripe that stores information

Smart card

A smart card stores data on a thin microprocessor embedded in the card


Microfilm and microfiche store microscopic images of documents on a roll or sheet flim