When I was in school, the original
IBM PC came out. Anyone
who used them will never forget carrying a handful of those black-sleeved
5¼-inch
floppy
disks around. Talk about data portability! You could fit
the entire
PC-DOS
operating system on one 360 kB floppy and still have
room left over for some user files. A blank diskette could hold the
equivalent of about 175 pages of text!
But the cool kids never used PCs; we had
Big Iron.
At that time, most of the disk drives used on the university’s IBM
mainframe were
3380s.
Each drive was the size of a refrigerator and held 2.5
GB of data (about 7,300 floppies). You could daisy-chain eight
of them together into a string that was about the size of one of those
moving/storage
“pod”
containers (see below) and which held 20 GB.
After I graduated from college, I ran a mainframe shop for a company
doing statistical analysis of medical records, and I bought a couple
strings of used 3380s. Man, those were the days when people knew you
were computing hard! Nowadays you can get one of those fingernail-sized
MicroSD
cards (see below) with 64 GB of storage-the
equivalent of three full strings of 3380s!-for less than fifty
bucks.
Where is all this going? Today I received shipment of an external
hard drive to backup my home laptop. Two freakin’
terabytes.
That’s the equivalent of 820 of those refrigerator-sized
3380s, all sitting in the palm of my hand in a box that’s about the size of
a paperback novel.
Boggle!