"Eisboch" wrote in message
...
http://www.neatorama.com/images/2006...puter-1956.jpg

In September 1956 IBM launched the 305 RAMAC, the first computer with a
hard disk drive(HDD). The HDD weighed over a ton and stored 5MB of data.

That's not a typo ..... 5MB of data.

Eisboch


Not 5 MB of data. Bytes were a later invention. They were 7 bit
characters. 6 bits of data and a parity bit. Bytes came in when they
needed upper and lower case characters on the printer.