BUS 254 Chapter Notes - Chapter 4: Usb, Altair 8800, Input Device

• School: Simon Fraser University
• Department: Business Administration
• Course: BUS 254
• Professor: Hwee Cheng Tan

Document Summary

Early computers: 1939-1952: developed and financed by american military, eniac, used to calculate missile firing, was the first programmable general purpose computer. It was large, complex, and expensive, and only ran one program at a time: the ter(cid:373) (cid:862)(cid:272)o(cid:373)puter (cid:271)ug(cid:863) (cid:373)ea(cid:374)t (cid:449)he(cid:374) a (cid:271)ug got stu(cid:272)k i(cid:374) (cid:271)et(cid:449)ee(cid:374) the (cid:373)e(cid:272)ha(cid:374)i(cid:272)al rela(cid:455)s. that"s ho(cid:449) the ter(cid:373) de(cid:271)uggi(cid:374)g (cid:272)a(cid:373)e up. Time sharing eventually led to more sophisticated networking among computers: mainframes have been the mainstay of business computing since the early. 1960s, and some models, such as the ibm mainframe 50, continue to be made even today: mainframes are designed for fast processing, and massive storage. Microcomputers: 1975-present: early mainframes were large and often required to be housed in climate controlled spaces, the microprocessor was developed in the early 1970s by intel. It incorporated a cpu and some short-term memory into a single silicon chip using integrated circuits.