In this chapter, we will discuss the development in Computer Science chronologically.
The following table lists down the development −
| Year | Development |
| 1959 | Transistors: IBM 7090; IBM 1401 |
| 1962 | NPN transistor |
| 1963 | Mouse; CMOS patented |
| 1964 | CDC 6600; IBM Data Cell Drive |
| 1966 | Integrated circuits: HP 2116A |
| 1966 | Apollo Guidance Computer |
| 1969 | Honeywell 316 |
| 1971 | 8″ floppy disk; ILLIAC IV |
| 1973 | Micral first microprocessor PC |
| 1980 | Sinclair ZX80, Seagate hard disk drive |
| 1981 | IBM PC, Acorn BBC Micro |
| 1983 | Apple Lisa; 3.5″ floppy |
| 1984 | Apple Mac; Apple Lisa 2 |
| 1988 | Dell |
| 1989 | NeXT |
| 1991 | Apple Switches to PowerPC |
| 1992 | HP 95LX; Palmtop PC |
| 1995 | IBM Deep Blue chess computer |
| 1996 | USB 1.0 |
| 1997 | Compaq buys Tandem; CD-RW |
| 1998 | iMac |
| 2000 | USB 2 |
| 2001 | Apple iPod |
| 2005 | Mac Mini |
| 2006 | Apple transition to Intel |
| 2007 | iPhone 1 |
| 2008 | USB 3.0 |
| 2010 | Apple iPad |
| 2012 | IBM zEnterprise System |
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