Copyright © Don Kussee - 1120-Intro # 541 CNS 1120 Copyright © Don Kussee 1120-Intro.PPT

Copyright © Don Kussee - 1120-Intro # 54

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CNS 1120

Copyright © Don Kussee

1120-Intro.PPT


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The Purpose of this Course

• Introduce programming concepts– Understand the words used– Practice the program development process– Understand the coding and debugging tools

available– Understand programming algorithms

• Look at programming languages & purposes

• Prepare for future programming classes


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Visual Basic Courses

• CNS 1120 Introduction to VB programming for Computer Science majors – 4 hours

• CNS 1200 Introduction to VB programming for Information Systems & others – 3 hours

• CNS 2200 Introduction to VB programming for programmers. 3- hours.

• CNS 3200 Advance VB programming after CNS 1120, or CNS 1200, or CNS 2200


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Computer Programs

• Input OutputProcess

Process

Process

Process

Process23

2-3

Yes No

9672

AC+

1421

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Game restartsGame ends

6Copyright © Don Kussee - 1120-Intro # 54

The VB environment

Menu barTool bar

Toolbox

Code window

Form window Properties window

Project window


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1st programThunder storm

• 6 year old - afraid of noise - not lightening

• How far away was the lightening?

• How do we build a program?

• What is the Algorithm - the process of getting the job done

• ????


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A First Program

• How far away is the lightening?

• What are the elements

• Time difference between sight and sound

• Speed of light - who cares

• Speed of sound - 1089 feet/second @ sea level in dry air

• Time in seconds * speed of sound = distance


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How far away was the Lightning

• What is the input

• What is the output

• What is the process (What does the computer do), (speed of sound is 1089 feet per second in dry air - 5280 feet in a mile)

• The result


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• A demonstration: building the first Visual Basic Programming Assignment.


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TOE chartTask-Object-Event

Task Object Event• Seconds till thunder TextBox Change

• Compute distance None None

• Display distance Label None


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Printing Visual Basic programs


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Saving Visual Basic Programs

1 Create a folder with a descriptive name

2 Open the folder, Use Right mouse Button to create a VB program

4 Save As the Project3 Form, Classes, Code, Resources– Project - the files that make up the project

• Save frequently

• Backup often


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Saving Visual Basic Program


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What you must do for an A

• Practice the language - just like foreign language - Practice, Practice, Practice

• Attend the class• Read the book, practice writing programs• Get 2 floppy disks - Label them• Get two color high-liters• Access to your own computer, is helpful-

not required. CNS has computer labs.


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Tools we will use

• Book: “Programming Business Applications with Visual Basic 6.0”

• Lecture Notes: In the bookstore (copies of these slides)

• Program: Microsoft Visual Basic 6.0– Tools provided– Language - syntax and semantics– Programming concepts– Over 1 million copies have been purchased

• Computer Lab.


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Reference Books

• Not required but good for your library

• Microsoft Visual Basic 6.0 Reference Library, consists of 3 “official” manuals that are very good. $ 65.00


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Reference Books

• Not required but good for your library

• Visual Basic 6, Programmers Reference by Wayne Freeze; ITP Vantana Press

• Visual Basic How-to, by Waite Group, the Waite Group Press

• Win32 API’s for VB 6, By Dan Appleman, ZD Press


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Microsoft Visual Basic 6.0

• Creation Control Edition– does not include .exe, data controls, Wizards

• Learning Edition 99.95 49.95– Limited capabilities

• Professional 499.00 99.95– ActiveX builds

• Enterprise 1199.00 199.00– Group programming


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Visual Basic .Net (7.0)

• Should be available about the end of the year.

• Big change from VB 6.0.

• Very similar to Microsoft C# (Java)

• Improvement in the Error handling sub-routines, true OOP Inheritance

• We may teach it Fall 2002


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Microsoft’s Visual Basic 6.0

• In Computer Science Labs Professional Version

• At home - VB 5.0 or later, Any version including Creation Control.

• Professional Version (for $499) available to students $99


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Office Hours

• Monday 10-11 AM

• Tuesday 10-11 AM

• Wednesday 10-11 AM

• Thursday 10:30-11:30 AM

• Friday 11-12 AM


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Computer Facilities

• Good Lab computers - – hr. 7 AM to 10 PM Monday thru Thursday– hr. 7 AM to 6:00 PM Friday– hr. 8 AM to 3:00 PM Saturday– UVSC Net access available

• PC’s with Win98 & Visual Basic

• What your fees go for


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Lab Account

• You will need your account– To get updates of syllabus & requirements– To submit your programs for approval– To obtain messages from me– To download sample programs– To down load copies of these overheads

• All labs are open - unless they have a class


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Lab Visit – once only in this class

• We will go in as a class• Trained how to use the lab computers• You need

– 2 Floppy disks (3 1/2 inch, IBM Format)• Label them with your name

– To be registered for the class & pay lab fee

• Will spend some time on how to use Visual Basic


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Lab Assistants

• Will help if you have – Your book– A copy of the assignment– A design of the assignment

the TOE chart

• Few have had Visual Basic programming - but most have had programming of some type, and Visual Basic is very simple.


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Download area

• On the WWW - – http:/ftp.business.uvsc.edu./kusseedo/– PowerPoint slides are here– PowerPoint viewer is available– Programming assignments– Syllabus


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PowerPoint Slides

• View them with the PowerPoint viewer

• To Print them– Copy them to a disk (you could use the A: or H:)– Open the PowerPoint program on the

• Win95 programs

• Microsoft Office

• PowerPoint

– Print - Select 6 slides per page


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Assignments, Quizzes, and Tests

• Programming Assignments 36%

• Programming Assignments Style 7%

• Quizzes - 30 % Every Tuesday– At the start of class - I give free answer or two– Quiz is at the end of class– 2 low quizzes dropped

• Tests - 27% 2 mid-terms & final


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Floppy Or Zip disks2 at least

• Hard disk storage in the Lab is questionable

• Label your floppy disks

• Magnetic storage - so keep away from – Magnets (Refrigerators, TV’s, Speakers)– Magnetic screwdrivers– Sunlight …

• Backup your disks


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Windows 95 familiarityMust know

• Window• Icon• Click & Right Click• Double Click• Drag & Drop• Move• Copy & Cut & Paste• Minimize & Maximize• Resize

• Dropdown Menu• Popup Menu• Title Bar• Menu Bar• Tool Bar• Scroll bar• Mouse use


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Programming LanguagesA History Lesson

• Instructions to tell the hardware what to do

• Over 4000 popular languages

• Each invented for a specific purpose– some to be small– some to be fast– some for formulas– some for games– some for ease of use - Visual Basic


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1st Generation Programming

• Machine Language -

• All the computer can understand. All computer programs must be translated into Machine language ... a series of 1 and 0

• To add two numbers and put the result in a third we would do the following


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Machine Language program

00010001

00100010

1000

00111001


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To Add Two Memory Locations

0001 0001

• load CPU reg A contents of memory location 0001

0010 0010

• load CPU reg B contents of memory 0010

1000

• add reg A and reg B (sum remains in reg A)

0011 1001

• stores reg A into memory location 1001


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2nd Generation

• Assembly Language -– A translation to accommodate human memory– Must be re-translated back to Machine

Language– Still used for critical applications

• First WordPerfect program code

• Part of other CNS classes

– To add two numbers as before


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Add to locations in memory

• Instruction - memory location

• Machine Assembly0001 0001 LOA 0001 load A with location 0001

0010 0010 LOB 0010 load B with location 0010

1000 ADD add A and B

0011 1001 STO 1001 store into location 1001


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3rd Generation

• High Level Language

• A reduction in code that must be written

• Must be translated to Machine Language

• FORTRAN (FORmula TRANslation) 1957

• C introduced in 1972, C++

• Visual Basic introduced in 1991

• Java introduced in 1996-7


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To add Two memory Locations

• Machine Assembly High Level 0001 0001 LOA 0001 C = A + B

0010 0010 LOB 0010

1000 ADD

0011 1001 STO 1001

– Note: A is memory location 0001, B is memory location 0010, C is memory location 1001


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High Level Languages

• FORTRAN - Engineering & Scientific

• BASIC - Effective but slow

• COBOL - Business• JAVA• PASCAL - teaching

language

• C• C++• Smalltalk• dbase• PL/1• FORTH• HTML - WWW• Visual Basic


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4th Generation Higher Level

• PROLOG - Artificial Intelligence programs

• LISP - Knowledge based programs

• ADA - Multi-tasking government program

• Forth - very small

• OCCUM - Neural Net Language

• Delphi & Visual Basic


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Visual Basic• Visual Basic is simple but powerful language

– Much easier to use than C, C++, Java, Pascal– As easy to use as Powerbuilder, Delphi– Much faster than Basic, Java, Pascal– Has about 90% of the speed of C++– Has about 80% of the speed of Assembly Language

• Learning a language requires practice, practice


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1945 Von Neumann“Computer Program”

• A series of steps to be followed by the computer ---- input the required data and ---- test/manipulate/change ----– produce the desired output

• step-by-step instructions

• very detailed

InputInput ProcessProcess OutputOutput

ComputerComputerProgramProgram


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Language Translation

• Computers can only run Machine Language CodeAll other code must be translated into machine language

• Two processes are possible– Interpreted– Compiled


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Interpreted Code Visual Basic in Design Mode

• Each line is translated as it is run– BASIC and Java the usual examples

• Good - Debugging easy

• Bad - Programs run slow

• A line must be translated each time it is used


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Compiled Code Visual Basic in compiled mode

• Done as a whole program

• Hard to debug

• Runs quickly

• C and C++ are examples of complied code

• Java a composite

Documents

Copyright © Don Kussee - 1120-Intro # 541 CNS 1120 Copyright © Don Kussee 1120-Intro.PPT