CS 1

This is Computer Science 1.

Who is Professor Adams?

What is CS1

How to get thoughts into the computer. Problem solving Critical thinking Logical thinking Learning JAVA as a first programming

language

Course Resources

An Introduction to Object-Oriented Programming with Java by Wu

Harley Hahn's Student Guide to Unix by Hahn

Course web page: http:\\www.cs.rit.edu\~cs1

Course News group: news:\\news.cs.rit.edu\rit.cs.courses.0603.231

Course Resources

Lecture Notes http:\\www.cs.rit.edu\~jaa\Cs1-Fall00\home.html

Unix Beginners Guide Lecture and Lab Instructors Extra help sessions Teaching Assistants Lab Assistants

Structure

Lecture - MTW 4:00PM to 4:50PM 12-1205

Lab Office Hours

Wednesdays 1 - 3PM Thursdays 3:30 - 5:30PM 10-1184

Schedule

Weekly reading assignments that correspond to lecture and lab assignments.

Weekly lab assignments. Bi-weekly quizzes. Final Exam.

Grade determination

Final Exam 35% Labs 30% Quizzes 35%

Lab Assignments Pre-lab activities and reading. Post-lab exercise. Grading

Each lab is worth 30 points In-lab activities are 20 points Post-lab activities are 10 points

Final lab grade is the average of your highest 9 individual lab grades. A 0 given for cheating will not be dropped.

Grades will be returned via e-mail.

Lab Assignements

Due Dates: Lab assignments are due at the end of the

day two days prior to your next scheduled lab.

No make-ups for missed labs. No late submissions are accepted. Submission for most of you labs will be

electronic.

Quizzes

There are 4 quizzes total. 30 minutes each, lecture will continue. Must be on time for quizzes.

Quizzes WILL NOT be given out to those who are late to class.

No make-ups are given for quizzes. Quizzes are not given early.

Quizzes Grading:

Each question will have a point total associated with it. This total will be determined when the quiz is

created. The point total will be 100.

If you miss a quiz or arrive late for a quiz, you receive a 0.

You final quiz grade is the average of your 3 best quiz scores. A 0 given for cheating will not be dropped.

Final Exam

Date will be announced. A common exam will be given to all

sections at the same time. No make-ups nor early examination.

Comprehensive Coverage: All reading material, all lecture material, and

all lab material.

Academic Honesty

Class Syllabus Department Policy Campus Wide Policy

Why Java?

A disadvantage of using Java is that it is a new language and is changing quickly.

Computers

Difference Engine Charles Babbage - 1823 Computing and printing mathematical

tables.

Computers

Analytical Engine Babbage Compute any calculation by inputting

instructions on punch cards.

Computers

MARK I Howard Aiken from Harvard - 1930s Electromechanical computer based on

relays.

Computers

ENIAC John Mauchly and J. Presper Eckert at the

University of Pennsylvania. First Completely electronic computer.

Computers EDIVAC

John von Neumann at the University of Pennsylvania - 1945

First "Stored" program and data.

Computer Generations

First Generation: Vacuum tubes

Second Generation: Transistors Late 1950's

Third Generation: Integrated Circuits that incorporated

hundreds of transitors. Early 1960s

Networks

Local Area Networks (LAN) Wide Area Networks (WAN) Internet

Architecture

Output DevicesMonitor and printerOutput DevicesMonitor and printer

Input DevicesMouse, keyboard, digital cameras, etc.

Communication DevicesModem, and network interface card

Output DevicesMonitor and printer

Central Processing Unit(CPU)

Executes programs

Contains ALU andregisters

Output DevicesMonitor and printerRandom AccessMemory (RAM)Temporarily storesprogram instructionsand data.Series of cells each4 bytes = 8 bitsVolatile memory

Output DevicesMonitor and printerStorage DevicesFloppy discs, tape,hard drive, and CD-ROMsGigsNon-volatile memory

Programming Languages

Machine languages 01101110 11110101 Only langauge the CPU understands Different computer brands have a different

machine language. Binary code (0 or 1) and very low level.

Programming Languages

Assmebly Languages MV 6, SUM Symbolic operation codes are used to write

programs. Higher level but still arcaric. Also, can be proprietary. Requires an assembler to translate the

program into machine code.

Programming Languages

High-level Langugages "English-like" languages

x = 6;

BASIC, PASCAL, FORTRAN, COBOL, C, C++, JAVA

Requires a compiler and an assembler to translate the program. The compiler translates to assembly language. The assembler translates to machine language.

Java

Java is newer Object-Oriented language. Based on C and C++. Permits the development of Applets or web

based programs as well as traditional applications.

Theoretically, Java is machine independent. The Java bytecode is supposed to be

independent of any particular computer machine hardware.