Microsoft MCSE-2003-Messaging Certifications Exam 70-270
Filed Under (American-College) by admin on 05-09-2008
The Floppy Disk Drive (FDD) 70-642 magnetically reads and writes information into floppy disks. Floppy Disks are form of removable storage. The standard size for modern day floppy disks is a 3 ½-inch disk with a hard plastic exterior shell that protects the thin, flexible disk inside. The FDD is mounted inside the computer unit and is only removed from the system for repairs or upgrades. Standard Floppy Disks hold 1.44 MB of data, which is useful for simple files, such as Microsoft Word documents, but not very effective for graphical content. With the 70-648 introduction of the USB Removable Drive, the Floppy Disk Drive has somewhat disappeared from newer computer systems.
A hard disk drive (HDD), commonly referred to as a hard drive, hard disk, or fixed disk drive,[1] is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. Strictly speaking, “drive” refers to a device distinct from its medium, such as a tape drive and its tape, or a floppy disk drive and its floppy disk. Early HDDs had removable media; however, an HDD 70-270 today is typically a sealed unit (except for a filtered vent hole to equalize air pressure) with fixed media.[2]
