Altair 8800 History of personal computers

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>1975: altair 8800


development of single-chip microprocessor gateway popularization of cheap, easy use, , personal computers. matter of time before 1 such design able hit sweet spot in terms of pricing , performance, , machine considered altair 8800, mits, small company produced electronics kits hobbyists.


the altair introduced in popular electronics magazine article in january 1975 issue. in keeping mits s earlier projects, altair sold in kit form, although relatively complex 1 consisting of 4 circuit boards , many parts. priced @ $400, altair tapped pent-up demand , surprised creators when generated thousands of orders in first month. unable keep demand, mits sold design after 10,000 kits had shipped.


the introduction of altair spawned entire industry based on basic layout , internal design. new companies cromemco started supply add-on kits, while microsoft founded supply basic interpreter systems. after number of complete clone designs, typified imsai 8080, appeared on market. led wide variety of systems based on s-100 bus introduced altair, machines of improved performance, quality , ease-of-use.


the altair, , clones, relatively difficult use. machines contained no operating system in rom, starting required machine language program entered hand via front-panel switches, 1 location @ time. program typically small driver attached paper tape reader, used read in real program. later systems added bootstrapping code improve process, , machines became universally associated cp/m operating system, loaded floppy disk.


the altair created new industry of microcomputers , computer kits, many others following, such wave of small business computers in late 1970s based on intel 8080, zilog z80 , intel 8085 microprocessor chips. ran cp/m-80 operating system developed gary kildall @ digital research. cp/m-80 first popular microcomputer operating system used many different hardware vendors, , many software packages written it, such wordstar , dbase ii.







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