Problem Solving

High-level Language

Low-level language

Interpreter

Compiler

Source code

Object code

Information

Structured data

unstructured data

Semi-structured data

Data Capturing

Data Storage

Data Retrieval

Data Recovery

System software

Command-based Interface

Graphical User Interface

Touch-based Interface

Voice-based Interface

Gesture-based Interface

Device driver

Free and Open source software

Freeware

proprietary software