Different Types of Storage DevicesFitness Equipment
As a computer technician, your responsibilities are likely to include, installing, and maintaining different types of internal and external computer components, including storage devices. Identifying the types of storage devices found in most personal computers will help will you are asked to work on a personal computer.
Floppy Disk Drives (FDD)
A Floppy Disk Drive (FDD) is a personal computer storage device that reads data from, and writes data to, removable disks made of flexible Mylar plastic covered with magnetic coating and enclosed in stiff, protective, plastic cases. The vast majority of floppy drives are internal devices that connect to the system board and get their power from the personal computer’s power supply.
Hard Disk Drives (HDD)
A Hard Disk Drive (HDD) is a personal; computer storage device that used fixed media, which means that the disk is built into the drive and the drive remains in the computer unless you are performing an upgrade or a repair. Hard drives connect directly to the system board via at least one cable for data and one for power. The hard disk itself consists of several metal or hard plastic platters with a magnetic surface coating. Data is stored magnetically and can be accessed directly. Most hard drives are internal, but some are external.
An Optical Disk is a personal computer storage device that stores data optically, rather than magnetically. The removable plastic disks have a reflecting coating and require an optical drive to read. In optical storage, data is written by either pressing or burning with a laser to create pits (recessed areas) or lands (raised areas) in the reflective surface of the disk. A laser in the optical drive then reads the data off the disk. Optical drives may be internal or external.
A Tape Drive is a personal computer storage device that stores data magnetically on a tape that is enclosed in a removable tape cartridge. Data on the tape must be read sequentially. The size of external tape drives varies, but internal drives are fixed. Tape drives are most commonly used to store backup copies of data.
Solid State Storage
Solid State Storage is a personal computer storage device that stores data in special types of memory instead of on disk or tape. Common types of solid state storage include the USB drives commonly known as jump drive or thumb drive, flash memory cards, secure memory (SD) memory cards. Solid state storage uses a combination of volatile and non-volatile memory to emulate mechanical storage drive, but solid state storage is usually faster than mechanical storage because there are no moving parts.