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2.5 STORAGE, • Storage is non-volatile; it does not lose its
contents…
2.5 STORAGE
STORAGE
Storage holds data, instructions and information for future uses
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STORAGE DEVICE
Hardware that records and/or retrieves items to and from storage media
STORAGE CAPACITY
Storage holds data, instructions and information for
future use
STORAGE MEDIA
The physical material on which a computer keeps data,
information, programs and applications.
Types of storage media
HARD DISK
Function : Storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions and information.
Characteristics
• High-capacity storage
• Components enclosed in airtight, sealed case for protection.
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SOLID STATE DRIVES
Function : A storage device that uses flash memory to store data , instructions and information
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MEMORY CARDS
Flash memory storage that users insert and remove from a slot in personal computer , smartphone , digital camera , or card reader/writer
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OPTICAL DISCS
Optical disc is a storage media that consists of flat, round, portable disc made of metal, plastic and lacquer that is written and read by a laser
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• Storage is non-volatile; it does not lose its
contents even when the power is off.
• Storage has bigger capacity compared to
memory, which has limited capacity.
• Transfer rate of storage is slower compared with
the transfer rate of memory.
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