Friday, January 9, 2009

Data Storage Devices

Data storage devices are those devices that are used for storing information or data. Recording of the data can be done using many types of energy like electrical, mechanical, magnetic, or optical.The unit of storage in a data storage device is byte. The data storage devices can be differentiated on the basis of energy used by them to store data. The different types of magnetic storage devices are floppy disk, core memory, magnetic drum and magnetic tape. Electrical storage devices include memory card, memory drives and semiconductor memory. Various types of Optical data storage devices available in the market are magneto-optical disk, blue-ray disc, holographic memory and tape drives. Normally a buyer looks for the type of the storage device, cable attachments provided with them and the storage capacity before buying these devices.

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