ITM 102 Lecture Notes - Lecture 5: Minicomputer, Computer Hardware, Mobile Computing

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 102
• Professor: Bharat Shah

Document Summary

Right technology at right time will improve organizational performance. Hybrid cloud strategy: when organization maintains part of its it infrastructure system itself and using parts of cloud computing services. Information technology infrastructure: shared technology resources that provide the platform for the fir(cid:373)"s spe(cid:272)ifi(cid:272) i(cid:374)for(cid:373)atio(cid:374) s(cid:455)ste(cid:373) applications. 5 stages of evolution of it infrastructure: general purpose mainframe and minicomputer era (1959-present) Introduction to minicomputers in 1965: personal computer era (1981-present) Wintel pc was the standard desktop personal computer: client/server era (1983-present) Client/server computing desktop or laptop computers called clients are powered to powerful. Server computers to provide the client computers with a variety capabilities. Cliient internet web server app server = sales production accounting hr = Data: enterprise computing era (1992-, cloud and mobile computing era (2000-) Moores laws [= more performance: the power of microprocessors doubles every 18 months, computer power doubles every 18 months, price of computing falls by half every 18 months.