It was 3″ floppy which held under 1meg of memory ( of course my work would be 32K to 100K big). There was no reasonably priced back up accept for the Bernoulli drive which was costly.
Review of the Bernolii in 1992
The reviewed Iomega Bernoulli 90 Transportable is still a bit pricey at $1,149–actually $1,713, when you include the mandatory SCSI PC-compatible bootable interface kit and three 90Mb disks. The drive retains the ruggedness of last year’s $1,800 22ms 44Mb model, and now boasts an average access time of 19ms and 90Mb capacity, Three additional 90Mb disks cost $300, offering unlimited storage expansion at just over a dollar per megabyte.
Unlike earlier models, the Bernoulli 90 is small and light enough to travel with your laptop. No laptop slots? Iomega offers a $265 parallel interface. Never travel? The internal Bernoulli 90 slips into your desktop for $ 150 less than the reviewed transportable.