CMSC 104

1
Introduction

• CMSC 104
• Spring 2000
• Problem Solving and Computer Programming

2
Am I in the right class?

• CMSC 104
• Assumes NO programming experience
• Does NOT count towards your CS major
• Prepares you for CMSC 201
• CMSC 201
• Assumes some programming experience
• First CMSC course for CS majors
• More challenging

3
Getting a GL Account at UMBC

• You MUST have a GL account
• Go to room ECS 005 (in the basement)
• Sign-on to one of the PCs there
• Type in the word register as the Login ID
• No Password
• Follow the instructions
• Your account can be used in 24 hours

4
Changing your Unix password

• Login by entering your id and password given on
  the sheet
• At the Unix prompt type passwd ltReturngt
• You will be prompted for your new password type
  it in and press ltReturngt
• You will be asked to type the new password again

5
Changing your Unix password (continued)

• You will be given a message that the password has
  been changed
• OR you will be given a message that rejects your
  new password
• Passwords should be at least 5 characters long,
  should be something you will remember.
• Your password will be rejected if it is a
  commonly used word or name

6
Computer Science at UMBC

• CSEE Administrative Offices
• ECS 210
• CSEE Student Services Office
• ECS 201
• CSCM (Sea Scum)
• Computer Science Council of Majors
• CSHC (Computer Science Help Center)
• ECS 332 In the Mechanical Engr Dept.

7
UCS Labs

• University Computing Services are responsible or
  all the computers
• 24 hour labs
• ECS 021 -- IBMs, MACs
• Open Labs
• ECS 005 -- SGI Workstations
• ECS 104 -- IBMs (but not 104A)
• ECS 122A -- IBMs
• Print Dispatch -- ECS 019 ()

8
UCS Labs (Cont'd)

• Open, but sometimes reserved
• ECS 333 -- IBMs
• ECS 336 - MACs
• Hours of Operations
• Monday - Thursday 7 AM - 3 AM
• Friday 7 AM - Midnight
• Saturday 8 AM - Midnight
• Sunday Noon - 3 AM

9
Consultants vs Tutors

• UCS Labs are staffed by consultants
• using software (pine, xrn, netscape, etc.)
• some text editors (emacs, pico)
• operating system commands (Unix)
• cleaning floppy disks
• communicating with UMBC computers
• CSHC is staffed by tutors
• Help with homework and projects
• emacs and Unix questions
• ECS 332 -- Hours to be announced

10
telnet

• Connect to your Internet Service Provider (ISP)
• Windows 95/NT/98
• Start
• Run
• telnet gl.umbc.edu

11
Hardware Software Needs

• Do I need my own computer?
• No, but it is more convenient for you
• If I have my own computer, can I use it?
• Sure, but you will using it mostly to login to
  your GL account or for word processing
• Do I need a C Compiler?
• No, and if you buy one, you will be wasting your
  . All programming should be done in your GL
  account.

12
Course Overview

• Introduction to Computer Organization and
  Architecture
• Data Representation and Memory Usage
• Introduction to Operating Systems
• Problem Solving and Algorithm Development
• Introduction to Software Engineering Using
  Top-Down Design
• Compiling, Linking and Execution
• C Programming
• Reuse Based on Algorithm Selection and Design
  Techniques