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MCS Society .NET Tech Talk Series

MCS Society .NET Tech Talk Series. What is .NET?. Thursday, November 7 th , 2002. Michael Dunn (mdunn@cs.drexel.edu) Drexel University Student Ambassador to Microsoft. Topics. Introduction Basics Myths The technology Language Independence Operating System Independence

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MCS Society .NET Tech Talk Series

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  1. MCS Society.NET Tech Talk Series What is .NET? Thursday, November 7th, 2002 Michael Dunn (mdunn@cs.drexel.edu) Drexel University Student Ambassador to Microsoft

  2. Topics • Introduction • Basics • Myths • The technology • Language Independence • Operating System Independence • Platform Independence • Conclusions

  3. Introduction • First in a series of .NET Technical Talks sponsored by Drexel’s Math and Computer Science Society. • High level overview of .NET • Future talks include much lower level discussion • Please hold detailed questions till the end

  4. Basics (cont.) • The motivation behind designing .NET was to enable easy creation of web services. • C# and the Common Language Infrastructure (CLI) are now international standards. • Many highly successful brand name companies are early adopters of .NET

  5. Basics (cont.) • Honeywell • GlaxoSmithKline • Bank of New York • Accenture • KPMG • Scandinavian Airlines System • Carnival Cruise Lines • Credit Suisse First Boston • Hewlett Packard • Deutsche Bank • Hitachi, Ltd. • The Virgin Group • USDA • Coca-Cola Company • FleetBoston Financial • Continental Airlines • Verizon • Xerox • Fidesic • Expedia • MSNBC • NASDAQ • Zagat Survey

  6. Basics (cont.)

  7. Myths • .NET is yet another attempt by Microsoft to shut down Open Source • .NET is a Microsoft technology • .NET only works with Microsoft Windows • .NET costs a lot of money • By using .NET I am supporting Microsoft

  8. The technology • Key concepts: • Language Independence • Operating System Independence • Platform Independence

  9. VB C++ C# Perl Python Common Language Specification Console and GUIs Web Services and XML .NET Framework (Base Class Library) Common Language Runtime Operating System The technology (cont.)

  10. The technology (cont.) :Language Independence Ada APL AsmL Basic (VB) C# C C++ CAML (F#) COBOL Component Pascal ECMAScript (JScript) Eiffel Forth Fortran (2) Haskell lcc Java (J#) Mondrian ML Mercury Oberon Oz Pascal Perl Python Scheme SmallTalk http://www.gotdotnet.com/team/lang/ for more info.

  11. The technology (cont.) :Operating System Independence • Despite being designed by Microsoft, .NET was not created with one operating system in mind. • A “shared source” CLI (SSCLI - codenamed ROTOR) is available for porting.

  12. The technology (cont.) :Operating System Independence (cont.) • Ximian – “Mono” http://www.go-mono.org • GNU’s – “dotGNU” http://www.gnu.org/projects/dotgnu/ • Since its an open standard, anyone can implement .NET for any operating system.

  13. The technology (cont.) :Platform Independence • Intermediate Language (IL) is converted into machine instructions by the CLR • The CLR is part of the open standard, and can be implemented for just about any system architecture

  14. Conclusions • .NET is (r)evolutionary • .NET is not a be all end all solution for every programming project • Just as (C++ != AT&T) && (Java != Sun) (.NET != Microsoft) • Lots of exciting .NET services to come!

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