Get this A+ Hardware CertiGuide for your own computer.
Click Here!
Use coupon code "SAVE50" to get it half price!

Custom Search







Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 0110:  Removable Media

Previous Topic/Section
VI  ZIP Drives
Previous Page
Pages in Current Topic/Section
1
Next Page
Digital Audio Tape (DAT)
Next Topic/Section

VII  Tape Drives

The bane of many PC technician and network administrators is the tape drive. Despite their poor performance, unreliability, and high difficulty of use, tape drives have become a necessary evil in the IT industry (let me tell you what I really think).

Tape drives provide a high capacity, inexpensive, and widely used media for backing up large amounts of data to a small, removable cartridge. They typically interface with a PC via a SCSI port, although lower end models can be used with a parallel port or floppy disk controller. The two most commonly used technologies of tape are:

  • Quarter Inch Cartridge (QIC)

  • Digital Audio Tape (DAT)

These tapes look like a scaled down version of the old reel-to-reel tapes that were used in large mainframe computers. The basic principle is that of a thin magnetic tape on which data is written from one end of the tape to the other. Data is written onto the tape in parallel tracks, usually 20 to 32 tracks that run the length of the tape.

Figure 79: 340 MB QIC tape

 


A number of tape manufactures have come together to create the QIC committee. While consistently advancing the technology, the group has worked to keep a format common to all members to increase acceptance. The first QIC format was QIC-40. It was called this because it could back up 40 Megabytes of data. Later the QIC-80 was released.

As time evolved, 3M came out with the Travan series, which extended the QIC lifespan. Most Travan models can read QIC tapes.

Travan

QIC tapes can be read by most Travan tape drives.


Quick navigation to subsections and regular topics in this section



Previous Topic/Section
VI  ZIP Drives
Previous Page
Pages in Current Topic/Section
1
Next Page
Digital Audio Tape (DAT)
Next Topic/Section

If you find CertiGuide.com useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider buying an inexpensive PDF equivalent of the CertiGuide to A+ (Core Hardware) from StudyExam4Less.com. (Use coupon code "SAVE50" to save a full 50% off the already low price!) Thanks for your support!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $



Home - Table Of Contents - Contact Us

CertiGuide to A+ (Core Hardware) (http://www.CertiGuide.com/aplush/) on CertiGuide.com
Version 1.0 - Version Date: December 6, 2004

Adapted with permission from a work created by Tcat Houser.
CertiGuide.com Version Copyright 2004 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.