COMP 202 Lecture Notes - Lecture 1: Binary Number, Ikea, The Algorithm
7 Dec 2017
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Comp 202 - lecture 1 introduction & binary numbers. How to think like a computer scientist. Learn how a computer thinks. Have fun and pass the course! Week 1- 7: fundamentals of programming. Week 8- 10: intro to object oriented programming (java) Computer scientists model and analyze problems, design solutions and verify solutions. Computer science is the science of algorithms. An algorithm is simply a sequence of steps that tells you how to solve a problem. Converting between decimal and binary. Day to day, we use base 10 (decimal) when we refer to numbers. However a computer is a series of wires, that either have current flowing through them, or do not. An easier way to think of it: light switches that are on or off. So: computers talk in base 2 (binary), and our languages to code them need to be written as such. Binary only contains 2 numbers:
