The physical material on which a computer keeps data, information, programs, and applications.
Examples : USB Flash Drive, Hard Disk, Optical Disk
The number of bytes a storage medium can hold
Hard Disk
Contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information.
How It Works
Head Crash
Cccurs when a read/write head touches the surface of a platter.
External Hard Disk
A separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device.
Flash Memory
A type of solid state media and contain no moving parts.
Examples : Solid State Drive (SSD), Hard Disk Drive (HDD)
Memory Card
A removable flash memory device that you insert and remove from a slot in a computer, mobile device, or card reader/writer.
USB Flash Drives
Plug into a USB port on a computer or mobile device.
Cloud Storage
An Internet service that provides storage to computer or mobile device users.
Consists of a flat, round, portable disc made of metal, plastic, and lacquer that is written and read by a laser.
Examples : CD-ROM, CD-R, CD-RW
Differences of DVD
Magnetic Stripe Card
Contains a magnetic stripe that stores information.
Smart Card
Stores data on an integrated circuit embedded in the card.
Radio Frequency Identification (RFID)
The tags consists of an antenna and a memory chip that contains the information to be transmitted via radio waves. The reader reads the radio signal and transfers the information to a computer or computing device.
Microfilm & Microfiche
Store microscopic images of documents on a roll or sheet film.
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