........ what they are loading into the aircraft? It's a hard disk drive, back in 1956 ... With 5 MB of storage. In September 1956 IBM launched the 305 RAMAC, the first 'SUPER' computer with a hard disk drive (HDD). The HDD weighed over a ton and stored a 'whopping' 5 MB of data. Do you appreciate your 8 GB memory stick now? Or your 160GBIpod?