Terminology

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Terminology
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Overview

• What is a computer?
• Source Code vs. Executable Code
• Compiling
• OOP
• IDEs

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What is a Computer?

• The thing in front of you
• Performs work on data
• Input/Output Units
• Memory Unit
• Arithmetic and Logic Unit
• CPU (coordinates all parts)
• Hard drive
• Uses an OS

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Source Code vs. Executable Code

• Source code is typed in by programmer, human
  readable
• File has .java or .cs extension
• Byte code is compiled source code, machine
  readable
• File has .exe (or .class) extension

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Compiling

• Process of converting from source code to machine
  readable code (.exe or .class)

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The JVM

• Java Virtual Machine
• Executes byte code
• Different platforms have different JVM
• Takes the fall when program crashes
• Takes care of memory management (garbage
  collection)

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Object-Oriented Programming

• A new way of programming
• Tries to create objects
• Generic definition
• Cookie Cutter
• Instantiate those objects
• Bring them to life
• Tell them what to do

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Ways to Compile

• Command line
• IDE (Integrated Development Environment)

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Other Terms

• API (Application Programming Interface)
  programming reference on the Internet
• Describes how the language is used
• Helps explore functionality of Java

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