computer programming

• Computer program


  A set of instructions that commands a computer what to do
• Python


  A high-level programming language used to demonstrate the basic concepts of programming
• Programming languages


  Computer languages used to write different types of computer programs
• Programming language hierarchy


  1. machine language

  2. assembly language

  3. high-level language
• Machine language


  A low-level computer language where everything is represented in 1s and 0s (binary system)
• Machine language is the language that computers understand directly without any need for translation, which is why it is very fast and uses memory efficiently
• Writing programs in machine language is very difficult
• Assembly language


  A low-level computer language that uses symbols known as mnemonics instead of 1s and 0s
• Assembly language is still difficult, though easier than using a binary system
• Computers do not directly understand any program outside the machine language, so it requires a special type of software
• Assembler


  Software used to translate assembly language instructions into machine language
• High-level language programs also cannot be understood directly by the computer
• Translator software


  Can be either a Compiler or an Interpreter, depending on the programming language
• Compiler


  Translates high-level language written programs all at once into machine language
• Programming languages that use compilers


  • C, C++, Java, and C#
• Interpreter


  Translates programs a statement at a time, instead of translating the whole program together as compilers do
• Programming languages that use interpreters


  • Python, Perl, and Ruby