Sunday, December 28, 2014

What is secondary storage devices of computer?

ZIP Drive:
     A small portable disk drive supplied by Iomega Corporation. Disk come in two sizes, 100 Mb and 250 Mb. A Zip drive is needed to read and write 2.5 inch Zip disks; it is available in either a parallel or SCSI version. when using a parallel Zip drive a printer can be chained off the drive so both can use the same parallel port.

ZIP Drive:
Zip Drive

     A disk drive from Iomega Corporation which takes removable 100 megabyte hard disks. Both internal and external drives are manufactured, making the drive suitable for backup, mass storage or for moving between computers. Software is included to help with file organization. The internal SCSI model offers up to 60 Mb/ minute transfer rate.
       The Zip drive was awarded Byte's Readers' Hardware Choice Award 1996. The company has started to manufacture a larger Jaz drive, which takes one gigabyte disks.

Jaz Drive:
     A high-capacity removable hard disk system from Iomega. The Jaz has been very popular. In 1997, 2 GB drives were introduced, which support 1 GB and 2GB disks.

Jaz Drive
Jaz Drive


Pen Drives ( Memory Stick/Flash Drive):
     When using PCs and very often which building or upgrading PCs, you'll need to transfer some data between machines. No problem, just throw in  floppy disk, copy all your data onto it and copy it off again at the other PC easily.

     But is it ever that simple? With the increasing complexity and size of today's applications and file sizes, our old friend the floppy disk just doesn't seem to have the capacity to keep up. At 1.44 MB, you're usually going to need to compress your files, and even then you'll need to make sure that the compressed file is less than 1.44 MB so it will actually fit.

     "No problem!" you say, "I ll' get myself  a Zip Drive. "Fine. With up to 250 MB capacity you can store everything you want and more on it. But already those nasty problems have started to creep in. The most significant of those being "Dose the other PC have a Zip Drive?"
     To solve these problems, Pen Drive is in your hand. Using this device you can easily transfer the files more than 1 GB easily.


     Pen Drive is a small key ring-sized device that can be used to easily transfer files between USB-compatible systems. Available in a range of capacities (and in some cases, with an MP 3 player built in) handy little gizmo can save all those data-transfer hassles.

     How do I use it?
     Simple. Plug it into the USB port of your PC and watch the system automatically detect the new device. Take a look at your system drives... a new drive has been created! The operating system can now access your USB Pen Drives just like any ordinary Hard Disk Drive.
 
Pen Drive
Pen Drive

     Copy across all the files you want to the 'new' drive, wait for the Read/Write LED on the USB Pen Drive to stop flashing then disconnect it. That's it. Your files are now safely stored on your USB Pen Drive. If you want to copy those files to another PC, just plug it in the new machine, wait for it to be detected and copy them off again.

     It's supported by Window ME/2000/XP, Mac OS (version 8.6 or above) and Linux kernel (Version 2.4 or above) without drivers, Windows 98/Windows 95 OSR2 (with supplied USB Drive).

     It looks like a pen and contains memory more than 100 Mega Bytes. 32MB, 64MB, 256MB, 1GB, 2GB, 4GB re the available Pen Drive size in the Market.