The document presents an overview of various storage devices, including hard disks, floppy disks, optical discs, flash memory, and cloud storage. It details the types and features of each storage method, highlighting capacities and use cases such as solid-state drives (SSD) and USB flash drives. Additionally, it categorizes cloud storage into four main types, emphasizing accessibility and reliability.

1. Presentation On
Storage Devices

2. Presented By:
• Muhammad Tayyab Bilal
• Muhammad Nouman
• Yasir Abbas
• Tajamal Hussain
• Ali Hamza
• Imran Khalid

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

4. Types Of Storage Devices:-
• Hard Disk
• Floppy Disk
• Optical Disc
• Flash Memory Drive
• Cloud Storage

5. 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.

6. 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.

7. 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.

8. 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-ROM
2. CD-R
3. 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-ROM
2. DVD-R
3. 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.

9. 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.

10. 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.

11. 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 Storage
There are four main types of cloud storage.
 Personal Cloud Storage
Public Cloud Storage
Private Cloud Storage
Hybrid Cloud Storage