The Free On-line Dictionary of Computing (30 December 2018):
JAZ
    An early system on the LGP-30.
   [CACM 2(5):16, May 1959].
   (1997-05-16)
The Free On-line Dictionary of Computing (30 December 2018):
Jaz Drive
Jaz
    Iomega Corporation's drive which takes
   removable one or two gigabyte disk cartridges which contain
   conventional hard disks.
   Internal and external drives are available claiming an average
   transfer rate of 330 megabytes per minute - though that is
   dependent on the SCSI adapter, the parallel port adapter is
   unlikely to reach anything like this speed.  The Jaz drive was
   the successor to the company's more establistablished Zip
   Drive.
   (1998-08-28)