65-lecture02 - Computer Science 65 Intro to CS January...

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Unformatted text preview: Computer Science 65 Intro to CS January 24th, 2008 Intro to Computers Programming Course Expectations There is no programming prerequisite for this course As long as you can type and turn on a computer (and think logically), you can earn an A in this course Those with programming experience, be careful Announcements No class on Tuesday, January 29th Volunteer to present on Thursday, January 31 st ? Due next Thursday: Assignment #1 Read Chapter 1 Tutors Computer Lab 214 Howard Sean Doebler Office Hours: M/W 12:45-1:45 Shannon Dybvig Office Hours: M/W 3:30-4:30 What is a Computer? What is a Computer? What is a Computer? A computer is composed of __________________ and _______________ Computer Systems: Software Software refers to the programs that run on a computer. There are two classifications of software: Computer Systems: Software Operating Systems An operating system has two functions: Control the system resources. Provide the user with a means of interaction with the computer. Examples: Windows XP Linux Mac OS X What is wrong with this statement : My favorite operating system is PC Computer Systems: Software Application Software Application software refers to programs that make the computer useful to the user. Common application software: Spreadsheets Word processors Accounting software Tax software Games THIS IS WHAT WE WILL BE WRITING THROUGHOUT THE COURSE What is Computer Hardware ? Computer hardware components are the physical pieces of the computer. The major hardware components of a computer are: Computer Hardware Computer Hardware Central Processing Unit (CPU) The brain of the computer Fetches instruction Executes the instruction Produce resulting data Life of a CPU (notes) Computer Hardware Main Memory Memory: contains information Algorithm Instructions Data Main Memory is commonly known as _______________________________ Contains: currently running programs data used by those programs RAM Notes Computer Hardware...
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65-lecture02 - Computer Science 65 Intro to CS January...

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