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Today General Knowledge(GK)
Disketts and hard disks are
A)
Slower than magnetic tape
B)
Direct access devices
C)
Sequential access devices
D)
Used only in mainframe computers

Correct Answer : Option (B) - Direct access devices



 
A direct-access storage device (DASD) is another name for secondary storage devices that store data in discrete locations with a unique address, such as hard disk drives, optical drives and most magnetic storage devices. A direct-access storage device (DASD) is a secondary storage device in which "each physical record has a discrete location and a unique address."
 
DASD, pronounced DAZ-dee (Direct access storage device), is a general term for magnetic disk storage devices. The term has historically been used in the mainframe and minicomputer (mid-range computer) environments and is sometimes used to refer to hard disk drives for personal computers.
 
Hard disks hold more data and are faster than floppy disks. A hard disk, for example, can store anywhere from 10 to more than 100 gigabytes, whereas most floppies have a maximum storage capacity of 1.4 megabytes. A single hard disk usually consists of several platters.

Published On : June 18, 2021
Category : Computers
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