Presentation On Storage Devices

Presented By:

• Muhammad Tayyab Bilal• Muhammad Nouman• Yasir Abbas• Tajamal Hussain• Ali Hamza• Imran Khalid

Storage Devices

Those devices which are used to store data, information and programs permanently.

Types Of Storage Devices:-

• Hard Disk• Floppy Disk• Optical Disc• Flash Memory Drive• Cloud Storage

Hard Disk

Hard Disk is a primary Storage device in a computer to store the programs and data permanently.

It is also known as hard disk drives(HDD) or hard drive(HD).

It is a type of magnetic Disk.

Floppy Disk

• Floppy disk is also called diskette. • It consists of a thin plastic disk coated with magnetic material.• The disk is enclosed in a plastic jacket.• Floppy disk can only store a small amount of data.• It is inexpensive storage media.

Optical Disc

Optical disc is a form of removeable storage. It includes CDs, DVDs and Blue-ray discs. Optical Drives use a laser to read and

write data on optical disc.

Categories of Optical Discs:- CD: CD stands for Compact Disc. It is mainly used to store photos, audio and computer

software. The contents of CD can be read by CD drive. There are three types of CDs which are as follow :

1. CD-ROM2. CD-R3. CD-RW

DVD: DVD stands for Digital Video Disc. It is similar to CD except that it uses a laser

beam with shorter wavelength. The storage of DVD is much greater than CD. It Can be up to 17 GB of data. Different types of DVDs are as follow:

1. DVD-ROM2. DVD-R3. DVD-RW

Blu-Ray Disc: Blu-Ray disc is a new and more expensive DVD format. It has higher capacity and better

quality than DVDs especially for high –definition video. It can store up to 100GB data.

Flash Memory Storage

Flash memory is a nonvolatile memory. It consists of solid chips with no moving parts. That is why it is more durable and fast.

Types Of Flash Memory Storage

Solid State Drives The solid-state drives(SSD) are storage devices that typically use flash memory to store data and programs. The term solid-state means that they have no moving parts. The storage capacity of SSDs can be up to 1TB or more. External SSDs are also available.

USB Flash Drives USB flash drive is a flash memory storage device that is connected to a USB port in computer or mobile device. It is also called thumb drive, key drives, or jump drives.USB flash is very easy to use because of its light weight and small size. The storage capacity of USB drive can be up to 256 GB or more.

Memory Cards A memory card is a removable flash memory to store data. Most of these cards are very small and can retain data without power. A memory card can b inserted in to a slot on computer or mobile device. However, a card reader can be attached to computer if it does not have a slot.

Cloud Storage

Cloud storage is defined as "the storage of data online in the cloud“.Cloud storage can provide the benefits of greater accessibility and reliability; rapid deployment; strong protection for data backup.

Types Of Cloud StorageThere are four main types of cloud storage. Personal Cloud StoragePublic Cloud StoragePrivate Cloud StorageHybrid Cloud Storage