CMSC 104, Version 1/021 Introduction CMSC 104 Problem Solving and Computer Programming Summer 2004 Section 6080 Ms. Dawn Block

CMSC 104, Version 1/022 Am I in the Right Class? CMSC 104 o Assumes NO programming experience o Does NOT count towards your CS major o Prepares you for CMSC 201 CMSC 201 o Assumes some programming experience o First CMSC course for CS majors o Also required for IFSM majors o MUCH more challenging

CMSC 104, Version 1/023 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

CMSC 104, Version 1/ General Hardware and Software Concepts Introduction to computer architecture Data representation and memory usage Introduction to operating systems Linux

CMSC 104, Version 1/ Basic Computer Use Basic use of an operating system (Linux) (pine) a text editor (emacs) the Internet (Internet Explorer)

CMSC 104, Version 1/ Problem Solving Problem solving and algorithm development general vs. specific solution to a problem use of top-down design use of pseudocode

CMSC 104, Version 1/ 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

CMSC 104, Version 1/028 Course Information On the Web: Follow links to Section 6080 Refer to the site throughout the semester (e.g., Annoucements on main page)

CMSC 104, Version 1/029 Getting a GL Account at UMBC You MUST have a GL account (same username and password as myUMBC account) Go to room ENG 020 (in the basement) and ask at the desk, OR Using the Internet, go to: accounts.umbc.edu (NO Your account can be used in approximately ½ hour

CMSC 104, Version 1/0210 Changing Your Linux Password Log in by entering your id and password given on the sheet. At the Linux prompt, type: passwd and press the Enter key. You will be prompted for your new password. Type it in and press the Enter key. You will be asked to type the new password again.

CMSC 104, Version 1/0211 Changing Your Linux Password (con’t) You will be given a message that the password has been changed, OR you will be given a message that your new password has been rejected. Passwords should be at least 5 characters long and should be something you will remember, but not something someone else can figure out. Your password will be rejected if it is a commonly used word or name. DO NOT GIVE YOUR PASSWORD TO ANYONE!

CMSC 104, Version 1/0212 Computer Science at UMBC CSEE Administrative Offices o ITE 325 CSEE Student Services Office (Advising) o ITE CSHC (Computer Science Help Center) o ITE 201E Linux Users Group (LUG) o

CMSC 104, Version 1/0213 OIT Labs The Office of Information Technology is responsible for all lab computers. On Web at: Labs with PCs: o ECS 021, ECS104, ECS122, ECS122A, ECS333 Labs may be on reserve, so plan ahead! Print Dispatch -- ECS 019 (? cents/page) Hours of Operations –OIT will post outside of labs

CMSC 104, Version 1/0214 Consultants vs. Tutors OIT labs are staffed by consultants using software (pine, Netscape, etc.) some text editors (emacs) operating system commands (Linux) cleaning floppy disks (viruses) communicating with UMBC computers (TeraTerm)

CMSC 104, Version 1/0215 Consultants vs. Tutors (con’t) CSHC is staffed by student tutors Help with homework and projects emacs and Linux questions ITE 201E – Not open during the summer!!

CMSC 104, Version 1/0216 Hardware and Software Needs Do I need my own computer? o No, but it is more convenient for you. If I have my own computer, can I use it? o Sure, but you will use it mostly to log in to your GL account or for word processing. Do I need a C Compiler? o No, and you probably shouldn’t buy one. All programming should be done in your GL account.

CMSC 104, Version 1/0217 Using Your Own Computer: SSH TeraTerm is a software communications program Must have an Internet Service Provider (ISP) Two sources for TeraTerm software: o OIT CD o Web: Click on the link for software downloads Consult OIT for help