BUSI 2400 Chapter Notes - Chapter 4: Claude Shannon, Code 128, Central Processing Unit
6 Feb 2018
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Thomas watson (boss of giant ibm corporation) forecasted that the world would need no more than about 5 computers. 6 decades later, global population of computers has risen to something like 1 billion machines. Taking in information is called input, storing information is better known as memory, chewing information is also known as processing, and spitting out results is called output. Input: keyboard and mouse are just input units ways of getting information into your computer that it can process: memory/storage: computer probably stores docs and files on a hard drive: a huge magnetic memory. What makes a computer different from a calculator is that it can work all by itself. You just give it your instructions (called a program) and off it goes. Today, most computers rely on prewritten programs like ms word and excel. They are soft in the sense that they are not fixed: they can (cid:271)e (cid:272)ha(cid:374)ged easil(cid:455).
