Class motto:
What’s this button for?
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CMSC104
Problem Solving and Computer Programming
Fall 2011
Section 4
Richard Chang
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Contact Information

Who am I?
 Richard Chang

Associate Professor

20th year at UMBC

BS in Mathematics/Computer Science

PhD in Computer Science

Computational Complexity
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Contact Information

Best way to contact me?
 Email! chang@umbc.edu

Office hours:
 Where? ITE 326
 When? Tues & Thurs: 2:30 – 3:30pm
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Am I in the Right Class?

CMSC 104
 Assumes NO programming experience
 Prepares you for CMSC 201
 Does NOT count towards the CS major
 Meets a requirement for other majors: i.e. Physics,
Financial Economics

CMSC 201
 Assumes some programming experience
 First CMSC course for CS majors
 MUCH more challenging
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CMSC100 vs CMSC104

CMSC100: less technical, less programming,
more overview of computer science.

CMSC104: concentrates on programming,
you have to learn programming to pass this
class.
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What Will We Cover?
1. General computer hardware and
software concepts
2. Basic computer use
3. Problem solving
4. Basic computer programming in the C
programming language
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1. General Hardware
and Software Concepts

Introduction to computer architecture

Data representation and memory usage

Introduction to operating systems Linux
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2. Basic Computer Use

Basic use of

an operating system (Linux)

e-mail (pine)

a text editor
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3. Problem Solving

Problem solving and algorithm development

learn problem solving by solving problems

use of top-down design

lots of practice
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4. Basic Computer Programming in
the C Programming Language

Compiling, linking, and executing a
computer program

Testing and debugging a computer
program

C programming language basics
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Course Web Page

Location: http://umbc.edu/~chang/cs104

Announcements

Course Syllabus

Homework Assignments

Lecture Notes
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Getting a myUMBC Account

You MUST have a myUMBC account

You can get one by going to:
http://accounts.umbc.edu (NO www.)

Your account can be used in ~½ hour

Grades, etc.
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Computer Science at UMBC

CSEE Student Services Office (Advising)


CSHC (Computer Science Help Center)


ITE 203 - 206
ITE 201E
Linux Users Group (LUG)

http://lug.umbc.edu
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OIT Labs



The Office of Information Technology is responsible
for all lab computers.
On Web at: http://www.umbc.edu/doit
Labs with PCs:




ENG021, ENG104, ENG122, ENG122A, ENG333
Labs may be on reserve for classes, so plan ahead!
Print Dispatch -- ENG 019 (10? cents/page)
Hours of Operations
 OIT will post outside of labs or go to:
https://wiki.umbc.edu/display/doit/Computing+Labs+and+Facilities
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Consultants vs. Tutors

OIT labs are staffed by consultants
using software (pine, Internet
Explorer, etc.)
 some text editors (xemacs)
 operating system commands (Linux)
 communicating with UMBC
computers (TeraTerm)

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Consultants vs. Tutors (con’t)

CSHC is staffed by student tutors



Help with homework and projects
xemacs and Linux questions
ITE 201E – Hours TBA
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Hardware and Software Needs

Do I need my own computer?


If I have my own computer, can I use it?


No, but it is more convenient for you.
Yes, but there’s limited help for using your own.
Do I need a C Compiler?

Don’t buy one, the GNU C compiler is free.
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Hardware and Software Needs

Windows: TeraTerm (from OIT), WinSCP,
NotePad++

Mac: Developer Tools (free), Terminal + Unix
commands, TextWrangler

Linux: Installation is on your own

More later...
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Class motto:
What’s this button for?
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Booting into Linux
Modify instructions posted on the walls:

press CTRL-ALT-DEL

select “Restart” from pop-up menu next to
the shutdown button on bottom right

select “Linux” using arrow key

log in using usual password
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Simple UNIX commands




ls
lists files in the current directory
cat filename
displays content of specified file
mkdir dirname
makes a new directory (a.k.a. folder)
cat > newfile
stores console input to file.
end using ctrl-D
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Classwork #1
①
②
③
④
use cat > filename to store your best(clean)
joke or personal motto in a file.
use cat filename to check that your joke or
motto was correctly saved.
have neighbor check if joke is funny. If not,
rm filename and try another joke/motto.
submit using
submit cs104_chang cw01 filename
⑤
check your submission with
submitls cs104_chang cw01
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