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Computer Science
Posted over 2 years ago
1
.
 Choose a programming language that is not in the top 
1
0
 of the TIOBE study and not in your textbook. a
.
 Give a brief description of the language. b
.
 Explain what application it is best used for. c
.
 Who invented and when? d
.
 Is it compiled or interpreted?
2
.
 What are the steps in compilation?
3
.
 What is a symbol table used for?
4
.
 What does an interpreter do
?
 
5
.
 Which languages are descendants of C? Name 5.
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Answer from Sia
Posted over 2 years ago
For question 1, I will choose the programming language Elixir
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Description: Elixir is a functional, concurrent, general-purpose programming language that runs on the Erlang virtual machine (BEAM). It is designed for building scalable and maintainable applications
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Application: Elixir is best used for developing distributed, fault-tolerant systems, such as web applications and telecommunications systems
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Inventor and Date: Elixir was created by José Valim in 2011
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Compilation or Interpretation: Elixir is a compiled language; its code is compiled to bytecode for the Erlang virtual machine
For question 2, the steps in compilation are:
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Preprocessing: The preprocessor handles directives like #include and #define, expanding them where necessary
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Lexical Analysis: The source code is broken down into tokens
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Syntax Analysis: Tokens are organized into a parse tree according to the grammar of the language
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Semantic Analysis: The parse tree is checked for semantic consistency with the language's rules
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Intermediate Code Generation: The compiler generates an intermediate representation of the source code
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Optimization: The intermediate code is optimized for performance improvements
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Code Generation: The optimized intermediate code is translated into the target machine language
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Linking: The generated machine code is linked with other code libraries to create the final executable
For question 3, the purpose of a symbol table is:
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Storage: It stores information about identifiers, such as variables, functions, classes, and objects
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Scope Resolution: It helps in managing the scope of identifiers to determine where they are accessible in the code
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Type Checking: It assists in type checking by keeping track of the data types of identifiers
For question 4, an interpreter does the following:
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Translation: It translates high-level programming language code into machine code
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Execution: It executes the program directly, without producing an intermediate compiled program
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Runtime Evaluation: It evaluates expressions and statements in the program at runtime
For question 5, five languages that are descendants of C are:
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C++: An extension of C with object-oriented features
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Objective-C: A reflective, object-oriented language that adds Smalltalk-style messaging to C
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C#: A language developed by Microsoft that combines principles from C and C++
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Java: A language that was influenced by C++ but designed for cross-platform compatibility
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JavaScript: Although not directly descended from C, it has C-like syntax and was influenced by C

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