The Hard Disk That Changed the World: 50th anniversaryBreaking News
If there's a bottle of vintage champagne you've been saving, next month is the time to pop it open: it's the 50th anniversary of hard-disk storage. Don't laugh. On Sept. 13, 1956, IBM shipped the first unit of the RAMAC (Random Access Method of Accounting and Control) and set in motion a process that would change the way we live.
The RAMAC, designed in Big Blue's San Jose, Calif., research center, is the ultimate ancestor of that 1.8-inch drive that holds 7,500 songs inside your pocket-size $299 iPod. Of course, the RAMAC would have made a lousy music player. The drive weighed a full ton, and to lease it you'd pay about $250,000 a year in today's dollars. Since it required a separate air compressor to protect the two moving "heads" that read and wrote information, it was noisy. The total amount of information stored on its 50 spinning iron-oxide-coated disks—each of them a pizza-size 24 inches—was 5 megabytes. That's not quite enough to hold two MP3 copies of Elvis Presley's "Hound Dog."
comments powered by Disqus
- What Makes a President Great? Clipping? Sipping? Slashing?
- Carla Hayden says Frederick Douglass "might have a lot to do with the fact that I am a librarian”
- Baton Rouge area Catholic school responds to student's racist essay about Black History Month
- How the ‘guerrilla archivists’ saved history – and are doing it again under Trump
- Trump visits the National Museum of African American History and Culture
- Historian and Antiwar Activist Marilyn Young Dies at 79
- Trump Chooses Historian H.R. McMaster as National Security Adviser
- Holocaust Historian Deborah Lipstadt Explains Why People Believe Trump's Lies
- Princeton’s Harold James warns World War Three is now a "serious threat”
- Israeli schools' history lessons create good soldiers, says pundit