3½" Floppy
Disk Drive
The disk drive is a device that allows you to read data from and write data to a floppy
disk. This aspect of the computer is very standard and should be a part of your
system. There are no specifications of the drive that will affect you as you search
for your system, other than the 3½" size. A single disk can hold 1.44 MB (mega
bytes) of data. A floppy disk is a magnetic disk that is removable. Even
though the storage capacity is much less than a hard drive, a floppy disk is very useful
for moving small amounts of data (a few files) from one computer to another.
Analogy
- Since the disk can only hold 1.44 MB of data, compared to a hard drive, it is relatively
tiny. Comparing a standard floppy disk to a typical hard drive of 12 GB (giga
bytes), one single 12 GB hard drive would equal a stack of 1.44 MB floppy disks over 90
feet high!
History - Originally disk drives were the ONLY type of data storage
that was available on a PC computer. There were no hard drives, no CD-ROMS, and
certainly no DVDs, and 1.44 MB would have been a ton of space.
The first IBM PC portable computer had two 5¼" disk drives, of which the disks
were truly floppy. The top drive was used for the operating system and the program
that you were running and the bottom disk was the disk that would store the data.
The user would have to constantly switch between the disks to keep his or her computer
session going. Each of those 5¼" disks would only hold 360 KB (kilo
bytes). Pretty amazing how far we have come in data storage over the years.
Manufacturers - There are numerous manufacturers. The only
consideration is price. No other considerations should factor into your thinking
about a 3½" drive.
What You Are Looking For - You will need a disk drive to back things
up one file at a time, install some older software, and in some cases new drivers for
peripheral equipment such as modems etc. which may be available only on floppy
disks. This is a necessary part of your computer system. |