Storage Devices

Momina

What is a storage Device?

• A storage device is a device used for storing something.

Types of Storage Devices1. OpticalEg.• BLU Ray• Compact Disks – CD-ROMS ; CD-R; or CD-RW• DVD’s2. MagneticEg• Hard Disks• Magnetic tape• Floppy3. Solid StateEg.• External Hard Disks • Camera Card• USB’s

Optical Storage Devices

Uses A Precise laser Beam

BLU Ray

• Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data.

Compacts Discs

• A Compact Disc (also known as a CD) is an optical disc used to store digital data.

DVD’s

• A DVD is a larger, faster CD that can hold video, audio, and/or computer data.

Magnetic Storage

Uses a Magnet Medium

Hard Disks

• The hard disk drive is the main, and usually largest, data storage device in a computer.

• It is inside the computer

Magnetic Tape

• Magnetic tape is an external storage device that can be used for making copies of audio, video, and data.

Floppy

• A floppy disk is a data storage medium that is composed of a disk of thin, it is in a square or rectangular plastic shell.

• It cannot contain as much data a CD or DVD or a Hard disk

Solid State Storage DevicesUses electronic circuits that retain the values without any power

source

External Hard Drive

• An external hard disk drive is a type of hard disk drive which is connected from the outside to a computer

An external hard disk drive is a type of hard disk drive which is externally connected to a computer

Camera Card (SD Cards)

• They look like tiny pieces of plastic with 5 metal contacts and will come in capacities ranging from 128mb to 8 gb.

USB’s

• A USB flash drive consists of flash memory data storage device integrated with a USB (Universal Serial Bus) 1.1 or 2.0 interface. USB flash drives are typically removable and rewritable, much smaller than a floppy disk, and most weigh less than 1 ounce

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