Welcome, Guest. Please login or register.
Forums
« previous next »
Pages: [1]   Go Down

Author Topic: External SCSI Optical Drive  (Read 3149 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline gertsy

  • Lifetime Member
  • Hero Member
  • *****
  • Join Date: May 2006
  • Posts: 2318
  • Country: au
  • Thanked: 1 times
    • Show all replies
    • http://www.members.optusnet.com.au/~gbakker64/
Re: External SCSI Optical Drive
« on: February 17, 2015, 01:58:03 AM »
Perhaps you are talking of "Backpack CD ROMs".  Which looked like external scsi CD ROMS but had a Parallel socket on the back and an IDE CDROM inside.  I
 have one in storage as it has a nice enclosure and CD Rom Power supply.

http://www.bing.com/images/search?q=backpack+cdrom&qpvt=backpack+cdrom&FORM=IGRE#view=detail&id=579E2A97B22A06564B49CB3811073E35B9E881E3&selectedIndex=0
Logged
 

Offline gertsy

  • Lifetime Member
  • Hero Member
  • *****
  • Join Date: May 2006
  • Posts: 2318
  • Country: au
  • Thanked: 1 times
    • Show all replies
    • http://www.members.optusnet.com.au/~gbakker64/
Re: External SCSI Optical Drive
« Reply #1 on: February 17, 2015, 06:40:11 AM »
Parallel Zip drives are just a SCSI interface unit with an in-built Parallel adaptor.  But the Backpack CD ROM is Parallel to IDE.  I know, because I thought I scored a SCSI CD ROM drive when I uncovered mine, But It's IDE.

Checked on Wikipedia so I know it's true: "Parallel port external Zip drives are actually SCSI drives with an integrated Parallel-to-SCSI controller, meaning a true SCSI bus implementation but without the electrical buffering circuits necessary for connecting other external devices. "
« Last Edit: February 17, 2015, 06:42:16 AM by gertsy »
Logged
 
Pages: [1]   Go Up
« previous next »