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PURPLE HATS WIZARDS

PROGRAMMING LANGUAGES. PURPLE HATS WIZARDS. We need programming languages to communicate with a computer. The two broad classifications of programming languages are: Low-level and High-level languages. WHY DO WE NEED PROGRAMMING LANGUAGES?.

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PURPLE HATS WIZARDS

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  1. PROGRAMMING LANGUAGES PURPLE HATS WIZARDS

  2. We need programming languages to communicate with a computer. The two broad classifications of programming languages are: Low-level and High-level languages. WHY DO WE NEED PROGRAMMING LANGUAGES?

  3. Low-level languages are programming languages that use words and symbols that are close to the language the computer understands. High-level languages are programming languages that use the same words and symbols that are used by humans. WHAT ARE THE TWO BROAD CLASSIFICATIONS OF PROGRAMMING LANGUAGES?

  4. There are five generations of programming languages. They are: • First Generation or Machine Languages • Second Generation or Assembly-level Languages • Third Generation or High-level Languages • Fourth Generation Languages • Fifth Generation Languages HOW MANY GENERATIONS OF PROGRAMMING LANGUAGES ARE THERE?

  5. 1GLs were the first languages that were developed for computers. 1GLs is also called ‘First Generation Languages.’ FIRST GENERATION OR MACHINE-LEVEL LANGUAGES

  6. An example of a code written in 1GL is: 10110011110011011. AN EXAMPLE OF A CODE WRITTEN IN 1GL

  7. ‘Machine dependent’ is a program that runs only on a particular type of computer system. WHAT IS MEANT BY THE TERM ‘MACHINE DEPENDENT’

  8. One advantage of 1GLs is: • It is able to be executed very fast by the computer, as there is no need for translation. • Three disadvantages of 1GLs are: • It is difficult to read, write and understand by humans as the programs involve only 0s and 1s • It is unable to be used on another machine that means it is ‘machine dependent’ • It is difficult to correct or modify mistakes. ADVANTAGE AND DISADVANTAGES OF 1GL:

  9. Second Generations languages were created since the writing of programs using Machine-level languages was cumbersome. SECONG GENERATION OR ASSEMBLY-LEVEL LANGUAGES (ALL)

  10. An example of 2GL is Assembly language. Instructions are written in Assembly language using mnemonics. HOW ARE INSTRUCTIONS WRITTEN IN ASSEMBLYLANGUAGE

  11. The term ‘Mnemonics’ means abbreviated forms of words. WHAT IS MEANT BY THE TERM ‘MNEMONICS’

  12. AN EXAMPLE OF A CODE WRITTEN IN ASSEMBLY LANGUAGE IS:

  13. The purpose of an assembler is to convert Assembly-level language instructions to Machine-level language. WHAT IS THE PURPOSE OF AN ASSEMBLER?

  14. Two advantages of Assembly languages are: • It is easier to read, write and understand than Machine-level language. • It is easier to correct or modify mistakes than Machine-level language. • Two disadvantages of Assembly languages are: • It is slower in execution than Machine-level language. • It is still machine dependent. ADVANTAGES AND DISADVANTAGES OF ASSEMBLY LANGUAGE:

  15. Third Generation languages were created to make the programming easier that ALL (Assembly-level languages). THIRD GENERATION OR HIGH-LEVEL LANGUAGES

  16. Some examples of 3GLs are: • BASIC • FORTRAN • Pascal • C • COBOL EXAMPLES OF 3GLs

  17. No, the computer cannot understand Third Generation Languages. It must be translated either using compilers or interpreters. These are needed because it convert High-level language to Machine language so the computer could understand what the user wants. CAN THE COMPUTER UNDERSTAND 3GLs AND WHAT NEEDS TO HAPPEN BEFORE THE COMPUTER CAN EXECUTE 3GLs?

  18. A translator program is used to convert High-level language to Machine-level language. WHAT IS A TRANSLATOR PROGRAM AND WHY IS IT NEEDED FOR 3GLs?

  19. A compiler and an interpreter are both translators that convert High-level language instructions to Machine-level language but a compiler takes all the instructions together to form a single file that can run on its own while an interpreter takes one instruction at a time and does not produce files that can run independently. DIFFERENCE BETWEEN A COMPILER AND AN INTERPRETER

  20. Three advantages of using High-level languages are: • It is easier to read, write and understand than Machine-level language and ALL. • It is easier to modify or correct mistakes than Machine-level language and ALL. • It is machine dependent. ADVANTAGES AND DISADVANTAGE OF USING HIGH-LEVEL LANGUAGES: • A disadvantage of using High-level language is: • It is slower in execution than Machine-level language and ALL.

  21. Fourth-generation computer programming language.4GLs are closer to human language than other high-level languages and are accessible to people without formal training as programmers. They allow multiple common operations to be performed with a single programmer-entered command. They are intended to be easier for users than machine languages  FOURTH GENERATION 0R ADVANCESD HIGH-LEVEL LANGUAGES

  22. An Example of 4GLs : EXAMPLE OF 4GLs:

  23. Afifth-generation programming language (natural language) (abbreviated 5GL or NL) is a programming language based on solving problems using constraints given to the program, rather than using an algorithmwritten by a programmer. Most constraint-based and logic programming languages and some declarative languages are fifth-generation languages. While fourth-generation programming languages are designed to build specific programs, fifth-generation languages are designed to make the computer solve a given problem without the programmer. This way, the programmer only needs to worry about what problems need to be solved and what conditions need to be met, without worrying about how to implement a routine or algorithm to solve them. Fifth-generation languages are used mainly in artificial intelligence research.  Fifth Generation Languages

  24. Examples Of Fifth Generation Languages are: • Prolog • OPS5 • Mercury Examples Of Fifth Generation Languages

  25. Artificial intelligence (AI) is the intelligence of machines or software, and is also a branch of computer science that studies and develops intelligent machines and software. Major AI researchers and textbooks define the field as "the study and design of intelligent agents", where an intelligent agent is a system that perceives its environment and takes actions that maximize its chances of success. John McCarthy, who coined the term in 1955, defines it as "the science and engineering of making intelligent machines". AI research is highly technical and specialised, deeply divided into subfields that often fail to communicate with each other. Some of the division is due to social and cultural factors: subfields have grown up around particular institutions and the work of individual researchers. AI research is also divided by several technical issues. There are subfields which are focused on the solution of specific problems, on one of several possible approaches, on the use of widely differing tools and towards the accomplishment of particular applications. The central problems (or goals) of AI research include reasoning, knowledge, planning, learning, communication, perception and the ability to move and manipulate objects. General intelligence (or "strong AI") is still among the field's long term goals. Currently popular approaches include statistical methods, computational intelligence and traditional symbolic AI. There are an enormous number of tools used in AI, including versions of search and mathematical optimization, logic, methods based on probability and economics, and many others. Artificial Intelligence

  26. An example of Artificial Intelligence

  27. A PURPLE HATS WIZARDS’ PRODUCTION THE END!! HOPE YOU ENJOYED  DONE BY : SEEMA SAMPATH –LEADER SHIVA RAMKISSOON ROMARIO SENNON RAVI RAGOO

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