CISC 101 Lecture Notes - Lecture 7: Software, Application Software, Colorless Green Ideas Sleep Furiously

• School: Queen's University
• Department: Computing
• Course: CISC 101
• Professor: Sharief Oteafy

Document Summary

Half bit adder only adds two bits (only 2 inputs), ignores any carry from previous addiion. An operaing system is sotware that manages and interacts with the hardware resources of a computer. Because it is intrinsic to the operaion of a computer, Computer sotware is a set of program instrucions, including documentaion, that can be executed by computer. While system sotware is part of a computer system, applicaion sotware fulills users" needs, such as a photo-ediing program. The syntax of a language is a set of characters and the acceptable sequences of those characters. The semanics of a language is the meaning associated with each syntacically correct sequence of characters. This sentence is syntacically correct, but has no meaning. Every language has its own syntax and semanics. A cpu is designed to interpret and execute a speciic set of instrucions represented in binary form. (0s and 1s) called machine code.