The ‘stuff you can touch’. Evolution of Computer Hardware Abacus counting machines Babbage’s difference engine Hollerith’s tabulating machine ABC computer.

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Presentation transcript:

The ‘stuff you can touch’

Evolution of Computer Hardware Abacus counting machines Babbage’s difference engine Hollerith’s tabulating machine ABC computer ENIAC

Categories of Computer Hardware Supercomputers Mainframe computers Minicomputers Server Workstation Microcomputers Desktop Laptop Mobile computers (phones)

Differences in categories Hardware Input Process(or) Output Storage Software Systems Applications Users Price Vendors

It’s about the network… Sharing resources Sharing data Sharing expertise

And who controls it… Centralization Decentralization

And the cost CategoryCost SupercomputersMulti-Millions MainframesMillions ServersThousands PC’sHundreds MobileFree?

Comparing the types CategoryHardwareSoftwareUsersPriceVendors Supercomputers Mainframes Mini/Servers PC Mobile

Key terms Supercomputer Mainframe Minicomputer Server PC Mobile TCO CPU RAM I/O O/S

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