Computer Storage Devices

Storage devices of computers are used to store data. There are many types of storage devices, each with its own benefits and drawbacks.

List of Storage Devices of Computer

Magnetic Storage Devices
The most commonly used storage devices in today’s time are magnetic storage devices. These are affordable and easily accessible. A large amount of data can be stored in these through magnetized mediums. Here is the list of Magnetic storage devices.

  • Floppy Disk: Also known as a floppy diskette, it is a removable storage device that is in the shape of a square and comprises magnetic elements. When placed in the disk reader of the computer device, it spins around and can store information. Lately, these floppy disks have been replaced with CDs, DVDs, and USB drives
  • Hard Drive: This primary storage device is directly attached to the motherboard’s disk controller. It is an integral storage space as it is required to install any new program or application to the device.
  • Zip Disk: Introduced by Iomega, is a removable storage device that was initially released with a storage space of 100 MB which was later increased to 250 and then finally 750 MB
  • Magnetic Strip: A magnetic strip is attached to the device comprising digital data. The most suitable example for this is a debit card which has a strip placed on one of its sides that stores the digital data

Online Cloud Storage: The term Cloud computing is used to describe the data centers available for users over the Internet where they can save their databases and files. This data can easily be accessed over the internet anytime and anywhere.
This has become a common mode to store data. The largest or the smallest computerized devices can use online cloud storage to save their data files. This option is also available in mobile phones where a backup of our files and data is being managed.
Flash Memory Devices: These storage devices have now replaced both magnetic and optical storage devices. They are easy to use, portable and easily available, and accessible. They have become a cheaper and more convenient option to store data.
Discussed below are the major flash memory devices which are being commonly used by people nowadays.

Storage devices of computer

  • USB Drive: It’s known as a pen drive, this storage device is small in size and is portable, and ranges between storage space of 2 GB to 1 TB. It comprises an integrated circuit that allows it to store data and also replace it
  • Memory Card: Usually attached with smaller electronic and computerized devices like mobile phones or digital camera, a memory card can be used to store images, videos, and audios and is compatible and small in size
  • Memory Stick: Originally launched by Sony, a memory stick can store more data and is easy and quick to transfer data using this storage device. Later on, various other versions of memory stock were also released
  • SD Card – Known as Secure Digital Card, it is used in various electronic devices to store data and is available in mini and micro sizes. Generally, computers have a separate slot to insert an SD card. In case they do not have one, separate USBs are available in which these cards can be inserted and then connected to the computer.

Optical Storage Devices: Such devices used lasers and lights to detect and store data. They are cheaper in comparison to USB drives and can store more data. Discussed below are a few commonly used optical storage devices.

  • CD-ROM: This stands for Compact Disc – Read-Only Memory and is an external device that can store and read data in the form of audio or software data.
  • Blu-Ray Disc: Introduced in 2006, Blu-ray disk was backup up by major IT and computer companies. It can store up to 25 GB of data in a single-layer disc and 50 GB of data in a dual-layer disc.
  • DVD: Digital Versatile Disc is another type of optical storage device. It can be readable, recordable, and rewritable. Recordings can be done in such devices and then can be attached to the system.
  • CD-R: It is a readable Compact Disc that uses photosensitive organic dye to record data and store it. They are a low-cost replacement for storing software and applications.

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