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This document provides an introduction to the CS105 course. It discusses what a computer is, the skills that will be learned including Excel, Visual Basic and SQL, and defines cheating and its consequences. Students will learn about hardware components like CPUs, memory and disks, as well as software including operating systems and applications. The course aims to teach computing as a basic 21st century skill for making decisions from large amounts of data. Cheating, such as copying assignments or showing work to others, will result in a zero grade for that assignment or an F for the course.
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- 1. Introduction to CS105 Do you know: What a computer is? What skills you will learn? What cheating is? CS 105 Spring 2011 1
- 2. Introduction https://agora.cs.uiuc.edu/display/cs105/ ? ? ? ? Housekeeping！Changes to Syllabus Grading！four MPs and three exams Handing in work online Writing an email to an instructor/TA: C Use your University email: NetID@illinois.edu C Subject: something meaningful C If replying, include past message(s) CS 105 Spring 2011 2
- 3. What is a computer? Get instruction and inputs Keyboard, mouse, mic, wii, ´ Do instruction store output Screen, speaker, hard-disk, ´ This course only deals with electronic computing machines CS 105 Spring 2011 3
- 4. Hardware ? ＾The parts that can be kicked￣ C Input/output devices C CPU (central processing unit) C Primary memory (RAM) Get instruction and inputs ? temporary, lost when turned off C Secondary memory Do instruction store output ? hard-disk, USB drive, CD/DVD ? permanent, even without power ? See Unit B in your Computer Concepts book CS 105 Spring 2011 4
- 5. What can go wrong with hardware? ? Memory, disks, CD-ROM drives, floppy drives, video cards, mother boards, CPUs, fans, power supplies, monitors, disk controllers can all FAIL! ? Rarely, chips can make calculation errors. CS 105 Spring 2011 5
- 6. Software ? Instructions (programs) C Applications C Operating Systems (OS) ? Windows, Mac OS, Unix, Linux, ´ Get instruction and inputs Applications Do instruction store output OS hardware CS 105 Spring 2011 6
- 7. What can go wrong with software? ? Software can contain errors (bugs) that cause unpredictable or incorrect behavior Ariane 5, flight 501 ? Malicious software can be very hard to detect C viruses, worms C software that fails with competitors¨ products CS 105 Spring 2011 7
- 8. Why take CS 105? ? ＾Computing is not about computers anymore. It is about living.￣ C Nicholas Negroponte ? A basic 21st century skill: make decisions based on large amounts of raw information C You will learn to use Excel spreadsheets, a popular way to represent and manipulate data C You will learn to program in Visual Basic, increasing what you can do with spreadsheets (and a lot more´) C You will learn to use SQL, a popular way to query a database CS 105 Spring 2011 8
- 9. Cheating ? The penalty for cheating will be 0 on the MP or exam, an F in the course if caught twice. ? Passively allowing someone to copy your work is cheating. ? More than 3 students working on an MP is cheating. ? It is cheating to show an MP or honors project to someone else. ? Ignorance of the law is no excuse´ University Policy CS 105 Spring 2011 9
- 10. More on Cheating ? Question: Am I cheating if another group turns in my work and says they did it? ? Yes. We are not blessed with "lie detectors.＾ Keep other people out of your laptop or computer, keep it password protected. ? *Don¨t tell people your password (duh) CS 105 Spring 2011 10
- 11. To Summarize: ? What is a computer ? ? What skills will you learn? ? What is cheating? CS 105 Spring 2011 11