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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