Download Introduction

Emerging Scholars
Computer Science Session
Overview: Summer 2007
Dr. Jim Martin
[email protected]
Rising Juniors Session
copyright Jim Martin 2007
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Session Overview
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Sessions 1 & 2:
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What is computer science ?
Computer basics
Sessions 3 & 4:
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The Internet
World Wide Web (WWW)
copyright Jim Martin 2007
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Class Room Rules
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Do not login into your machines until
the Instructor tells you to!
copyright Jim Martin 2007
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Expectations
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Your respect to me and your classmates
Your highest level of effort
You will be graded on:
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Your participation
Your conduct
Your homework, labs, quizes, final exam
copyright Jim Martin 2007
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Exercise
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In 3-4 sentences, define a computer
program
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Computer Science 101…….from Wikipedia
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Computer science is the study of the
theoretical foundations of information
and computation and their
implementation and application in
computer systems.
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Computer Science 101
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A computer program is essentially an algorithm that tells the
computer what specific steps to perform (in what specific order)
in order to carry out a specified task, such as calculating
employees’ paychecks or printing students’ report cards.
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Thus, an algorithm can be considered to be any sequence of
operations which can be performed by a computer.
Typically, when an algorithm is associated with processing
information, data is read from an input source or device, written
to an output sink or device, and/or stored for further
processing. Stored data is regarded as part of the internal state
of the entity performing the algorithm.
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In practice, the state is stored in a data structure.
copyright Jim Martin 2007
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Computer Science Careers
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College courses: math and basic sciences
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Other helpful skills: creativity, ability to solve problems,
communications skills.
What would you do:
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Create things (products, systems, validate conceptual
ideas before the real thing is created)
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Analyze things
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Job titles: software engineer, programmer, IT analyst
Job titles: analyst, architect, consultant
Test things: software quality assurance
Support/fix things: customer service
Sell things: customer support engineer, sales support
copyright Jim Martin 2007
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Computer Science Careers
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Software Engineer was voted the best job by Money magazine
(2006):
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http://money.cnn.com/magazines/moneymag/bestjobs/
Based on salary, stress level, and future outlook.
Software engineers are needed in virtually every part of the
economy, making this one of the fastest-growing job titles in the
U.S. Even so, it's not for everybody.
Designing, developing and testing computer programs requires
some pretty advanced math skills and creative problem-solving
ability. If you've got them, though, you can work and live where
you want.
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5 of the 10 hottest jobs between now and 2014 involve
computer science:
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http://money.cnn.com/magazines/business2/nextjobboom/
copyright Jim Martin 2007
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Exercise
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Demonstrate tic-tac-toe at:
http://www.prongo.com/tictac/index.html
Block out the tic-tac-toe program
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Program models the board as a grid with each
location referenced by numbers 1 – 9
Program gets input from the user
Program displays the user’s selection
…
Turn in the 2 exercises (put your name on it!)
copyright Jim Martin 2007
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Exercise: Tic-Tac-Toe
Program models the board as a grid with each location referenced by
numbers 1 – 9
Program gets input from the user
Program displays the user’s selection
Program decides where to move
Program displays the move
Game over ?
1.
2.
3.
4.
5.
6.
1.
2.
If true go to step 7
If not true
1.
2.
3.
7.
Decide the programs next move
Display the move
Game over ?
1.
If true go to step 7
2.
If not true go back to step 2
Display the winning board
copyright Jim Martin 2007
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