Coverage Statements: Dental services provided for the routine care, treatment, or replacement of teeth or structures (e.g., root canals, fillings, crowns, bridges, dental prophylaxis, fluoride treatment, and extensive dental restoration) or structures directly supporting the teeth are generally excluded from coverage under Aetna's medical plans, ...
A hard disk drive (sometimes abbreviated as Hard drive, HD, or HDD) is a non-volatile memory hardware device that permanently stores and retrieves data on a computer. A hard drive is a secondary storage device that consists of one or more platters to which data is written using a magnetic head, all inside of an air-sealed casing.
Drive. A drive is a medium that is capable of storing and reading information that is not easily removed like a disk. The picture is an example of different drives listed in Microsoft Windows My Computer.In the example shown on this page, drive A: is the floppy drive, C: is the hard disk drive, D: and E: partitions of the hard drive, and F: is the CD-ROM drive.Typically the CD-ROM drive is the last drive so in most situations the hard drive is the C: drive and a CD-ROM or other disc drive is the D: drive.Below are some examples of different drives you could have in a computer or that may be accessible by the computer.he picture is an example of different drives listed in Microsoft Windows My Computer. In the example shown on this page, drive A: is the floppy drive, C: is the hard disk drive, D: and E: partitions of the hard drive, and F: is the CD-ROM drive.