Young Susie was having trouble with her computer so she called Wes, the computer guy, over to her desk. Wes clicked a couple buttons and solved the problem.
As he was walking away Susie called after him, "So, what was wrong?" And he replied, "It was an 'ID ten T' error." A puzzled expression ran riot over Susie's face. " 'An ID ten T' error? What's that, in case I need to fix it again?" He gave her a grin. "Haven't you ever seen an 'ID ten T' error before?" Susie replied, "No." "Write it down," he said, "and I think you'll figure it out." . . . . . . . . . . I D 1 0 T .
5.25 inch floppy disks were fragile. They had to be stored in paper sleeves, could not be bent, and they could be damaged by a single touch
3.5 inch floppy disks held 1.44 megabytes of data. That's enough for maybe two or three standard Microsoft Word documents with no images. That's enough for maybe a minute of MP3 quality music.
Before internet use was common, the most frequent way that computer viruses spread was through floppy disks. It was a risk to take your data to another person's computer.