Week7%20-%20operating%20systems

Week7%20-%20operating%20systems - IST 195 Week 7, Operating...

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IST 195 – Week 7, Operating Systems
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Windows, Unix, MAC OS, Linux Bill Gates Ken Thompson Linus Torvalds There are hundreds of OS that run most of which we don’t know of Steve Jobs
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Ken Thompson – Brief Biography for co-inventing the UNIX operating system and the C programming language which together have “led to enormous advances in computer hardware, software, and networking systems and stimulated growth of an entire industry, thereby enhancing American leadership in the Information Age” (medal citation) Ken Thompson and Dennis Ritchie
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But What is an Operating System Operating Systems manage hardware and software resources including  processor, memory allocation, disk space, all input and  output devices Note - Kernel is the central component of an OS Provides a way for software  applications to work with the  hardware Without having to know  details (via an API) For example saving a file in a  program 
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Multitasking
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This note was uploaded on 11/18/2011 for the course IST 195 taught by Professor Staff during the Fall '08 term at Syracuse.

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Week7%20-%20operating%20systems - IST 195 Week 7, Operating...

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