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15 ProgrammingLanguages

15 ProgrammingLanguages - Programming Languages CEE 3804...

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Programming Languages CEE 3804 Computer Applications for CEE
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October 04 Kamal B. Rojiani 2 Low Level Languages z Low level languages Machine language z series of 0’s and 1’s Assembly language z mnemonic words and symbols z ADD, MOV, SUB, MOL, JMP
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October 04 Kamal B. Rojiani 3 Assembly Language Disadvantages z Machine dependent z Time consuming z Knowledge of architecture z Error prone Advantages z Faster programs z Direct access to hardware
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October 04 Kamal B. Rojiani 4 High Level Languages z Oriented more towards people z Closer to English z Fewer statements z Easier to program z Machine independent z Extensive diagnostics
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October 04 Kamal B. Rojiani 5 FORTRAN z FOR mula TRAN slation z Introduced commercially by IBM 1957 z Oldest/first compiled language z Algebraic notation similar to science and engineering z Not well suited for developing structured programs z Limited I/O support z Have been significant enhancements to the language recently z Large amount of legacy code z Many existing engineering programs written in FORTRAN
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October 04 Kamal B. Rojiani 6 PASCAL Nicklaus Wirth 1970’s Named after French scientist and philosopher Blaise Pascal Newer and more structured Strongly “typed” Well suited for developing large complex programs Superior language for introducing programming concepts Wide range of iterative and conditional control statements Rich variety of data structures Support for modular programs
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October 04 Kamal B. Rojiani
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