60 likes | 142 Views
Equipment. CmpE 101 Supplements By Dr. Atilla Elçi. Guess What This Is!. Any ideas? Do not advance before making your guess! So ?????. It’s a DISC DRIVE!. Yes, it’s a disc drive:
E N D
Equipment CmpE 101 Supplements By Dr. Atilla Elçi CmpE 101 Supplement
Guess What This Is! Any ideas? Do not advance before making your guess! So ????? CmpE 101 Supplement
It’s a DISC DRIVE! • Yes, it’s a disc drive: • Its a 5 MB hard disk in 1956....being loaded aboard an aircraft. 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. • IBM shipped the first unit of RAMAC on September 13, 1956. CmpE 101 Supplement
See for yourself • Check Wikipedia entry on IBM 305 CmpE 101 Supplement
I recall ... I recall working (yet as a sophomore in EE) on IBM 1620 during 1966-67 at METU Center for Electronic Computing Sciences (literally it’s so called, in Turkish “Elektronik Hesap Bilimleri Merkezi”). There were two disk drives (each of a regular size washing machine) . Each drive had an exchangeable cartridge (disk pack) of 5 MB capacity (and, may be another fixed disk pack inside?). The disk pack was of size about a hard briefcase! CmpE 101 Supplement
Check it out! Let us start appreciating our 4 GB finger-size flash drives. CmpE 101 Supplement