CPS 393 Lecture Notes - Lecture 1: Kornshell, Reddit, Command.Com
1 Apr 2016
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Document Summary
Unix/linux: an operating system (os) --so is win, widespread usage: 65% of active websites on linux servers, 85% of the top 100 supercomputers in the world. Every person who uses the internet daily, probably uses linux daily. Ibm, tivo, dishnetwork, garmin, us department of. Google android os is modified linux kernel. Many others such as: toyota, travelocity, cisco, Microsoft bought hm, tried to convert nt--failed miserably. Operating system: program(s) helping us communicate with computer"s resources, os loads user"s program into memory and runs it, os manages input /output devices, os is layered: Utilities: interactive commands available (e. g. to copy files) Shell: a pgm that reads our commands, figures out what we want to be done, and gets it done. In windows shell is called command interpreter command. com: get it from gui by start->run command (command prompt, prompts c:\> , reads, executes.
