![Rohan on X: "A promotion video of the first commercial computer that used HDD, the #IBM 305 RAMAC in 1956 https://t.co/eF9i6Bzifj http://t.co/fTp6s6H5N3" / X Rohan on X: "A promotion video of the first commercial computer that used HDD, the #IBM 305 RAMAC in 1956 https://t.co/eF9i6Bzifj http://t.co/fTp6s6H5N3" / X](https://pbs.twimg.com/media/CQZJxtZUkAAL_os.png)
Rohan on X: "A promotion video of the first commercial computer that used HDD, the #IBM 305 RAMAC in 1956 https://t.co/eF9i6Bzifj http://t.co/fTp6s6H5N3" / X
![The IBM 305 RAMAC, the First Computer with a Hard Drive: $10,000 per Megabyte : History of Information The IBM 305 RAMAC, the First Computer with a Hard Drive: $10,000 per Megabyte : History of Information](https://historyofinformation.com/images/Screen_Shot_2020-08-17_at_10.46.51_AM.png)
The IBM 305 RAMAC, the First Computer with a Hard Drive: $10,000 per Megabyte : History of Information
![The IBM 305 RAMAC, the First Computer with a Hard Drive: $10,000 per Megabyte : History of Information The IBM 305 RAMAC, the First Computer with a Hard Drive: $10,000 per Megabyte : History of Information](http://www.ed-thelen.org/RAMAC/RAMAC-EngProtoType-.jpeg)
The IBM 305 RAMAC, the First Computer with a Hard Drive: $10,000 per Megabyte : History of Information
![Disk & RAID The first HDD (1956) IBM 305 RAMAC 4 MB 50x24 disks 1200 rpm 100 ms access 35k$/y rent Included computer & accounting software. - ppt download Disk & RAID The first HDD (1956) IBM 305 RAMAC 4 MB 50x24 disks 1200 rpm 100 ms access 35k$/y rent Included computer & accounting software. - ppt download](https://images.slideplayer.com/5/1517516/slides/slide_2.jpg)