Download Fundamentals of Programming Languages by Ellis Horowitz (auth.) PDF

By Ellis Horowitz (auth.)

ISBN-10: 3642694063

ISBN-13: 9783642694066

ISBN-10: 364269408X

ISBN-13: 9783642694080

" .. .1 continuously labored with programming languages since it looked as if it would me that till you'll comprehend these, you actually could not comprehend desktops. figuring out them does not particularly suggest basically having the ability to use them. lots of people can use them with no figuring out them." Christopher Strachey the improvement of programming languages is among the most interesting highbrow achievements of the recent self-discipline referred to as laptop technology. And but, there isn't any different topic that i do know of, that has such emotionalism and mystique linked to it. hence, my try to write approximately this hugely charged topic is concerned with a great deal of in my function as professor i've got felt the necessity for a warning. however, sleek therapy of this topic. conventional books on programming languages are like abbreviated language manuals, yet this ebook takes a essentially diverse viewpoint. i feel that the absolute best method to research and comprehend ultra-modern programming languages is via concentrating on a couple of crucial ideas. those suggestions shape the description for this ebook and contain such themes as variables, expressions, statements, typing, scope, techniques, info varieties, exception dealing with and concurrency. via realizing what those recommendations are and the way they're discovered in numerous programming languages, one arrives at a degree of comprehension a ways more than one will get via writing a few courses in a xii Preface few languages. in addition, wisdom of those techniques offers a framework for figuring out destiny language designs.

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Extra info for Fundamentals of Programming Languages

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The class concept is now viewed as the father (or mother) of data abstraction, the topic dealt with in Chapter 8. The graph in Figure 1-5 shows the ancestry of some well-known programming languages. One sees that there are two large trees plus a lot of small bushes. All of the languages which have FORTRAN as The Evolution of Programming Languages 18 FORTRAN COBOL ALGOL5B 8ASlC~Go~k~L ALGOL68 Pascal PL/l SIMULA ~~S~LTA" Concurrent Mesa Euclid CLU ~ Pascal e ~/~ Plasma Mac Lisp Scheme QA4 INTERLISP BCPL APL SNOBOL BLISS FORTH t + SL5 C Figure 1-5: Language Pedigrees The Stormy '60s 19 their root, plus COBOL, are called imperative.

The third trend has been the incorporation of features for describing parallel processing. Real-time applications form a very significant part of computing from the development of operating systems, process control systems, airline reservations systems, etc. Languages which intend to support the development of these applications must first permit the programmer to define programs which can be executed simultaneously. These are typically called processes. One of the major issues for the language designer is to provide a means whereby processes can synchronize.

As it is currently constituted, Ada is a language which is Pascal based and additionally contains features for numeric computations, nonstandard input/output, machine dependencies, exception handling, data abstraction, and concurrency. According to its documents, it provides features for program modularity, portability, extensibility, abstraction, development, and maintenance. Though at the time I am writing this it is unclear how popular or influential Ada will become, I have decided to select many examples from Ada as we make our way through this book.

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