What are Storage devices? in CAD/CAM uploaded by Gust M uploaded in Engineering Study material at lecturenotes.net
Storage Devices are the data storage
devices that are used in the computers to store the data. The computer has many
types of data storage devices. Some of them can be classified as the removable
data Storage Devices and the others as the non removable data Storage Devices.
The memory is of two types; one is the primary memory and the other one is the
secondary memory.
The primary memory is the volatile
memory and the secondary memory is the non volatile memory. The volatile memory
is the kind of the memory that is erasable and the non volatile memory is the
one where in the contents cannot be erased. Basically when we talk about the
data storage devices it is generally assumed to be the secondary memory.
The secondary memory is used to store the
data permanently in the computer. The secondary storage devices are usually as
follows: hard disk drives – this is the most common type of storage device that
is used in almost all the computer systems.
The other ones include the floppy disk drives, the CD ROM, and the DVD ROM. The flash memory, the USB data card etc.
Floppy
discs:
A floppy disk is a data storage medium
that is composed of a disk of thin, flexible floppy)magnetic storage medium
encased in a square or rectangular plastic shell. Floppy disks are read and
written by a floppy disk drive.
Application
Any use where small files such as
word processing, small spreadsheets and databases need to be moved from one
computer to another.
Useful to backup small data files.
A hard disk drive is the device used to
store large amounts of digital information in computers and related equipment
like iPods and games consoles such as the Xbox 360 and PS3.
Hard disk drives are used to store
operating systems, software and working data. These are suitable for any
application which requires very fast access to data for both reading and
writing to. However, Hard disk drives may not be suitable for applications
which need portability.
Almost all computers used a fixed hard disc. Used for on-line and real time processes requiring direct access. Used in file servers for computer networks to store large amount of data.
Floppy
discs:
A floppy disk is a data storage medium
that is composed of a disk of thin, flexible floppy)magnetic storage medium
encased in a square or rectangular plastic shell. Floppy disks are read and
written by a floppy disk drive.
Application
Any use where small files such as
word processing, small spreadsheets and databases need to be moved from one
computer to another.
Useful to backup small data files.
A hard disk drive is the device used to
store large amounts of digital information in computers and related equipment
like iPods and games consoles such as the Xbox 360 and PS3.
Hard disk drives are used to store
operating systems, software and working data. These are suitable for any
application which requires very fast access to data for both reading and
writing to. However, Hard disk drives may not be suitable for applications
which need portability.
Almost all computers used a fixed hard disc. Used for on-line and real time processes requiring direct access. Used in file servers for computer networks to store large amount of data.
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