Storage Technologies
IBM 305 RAMAC
First commercial hard disk drive with random access
First hard disk drive50 24-inch platters5 MB capacity1200 rpmRandom access storage
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Navigator1956 | 5 buckets
CPU
Electric Motors
Graphics Processing Units
Lithography Physics
Memory
Microprocessors
Operating Systems
Optical Lithography
Programming Languages
RAM
Semiconductor Process Nodes
Smartphone
Storage Technologies
iPhone
1956
1971
Storage Technologies
8-inch Floppy Disk
IBM's first floppy disk for data storage and distribution
8-inch diameter80 KB capacityRemovable mediaRead-only initiallyMagnetic storage
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Sources
1985
Storage Technologies
CD-ROM
Compact Disc adapted for computer data storage
650-700 MB capacityOptical storageRead-only12 cm diameterRed Book standard
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