Wikipedia:Computer science basic topics

These should be the most basic topics in the field--topics about which we'd like to have articles soon. Please see the most basic encyclopedia article topics for general instructions on constructing this list.

• Basic concepts

abstract class
abstract method
algorithm
artificial intelligence
behavior
class
class method
class variable
encapsulation
functional programming
Hello World Program
hierarchy
human-computer interface
inheritance
input
input/output device
instance
instance method
instance variable
memory
protocol
method
object
object-oriented programming
output
override
programming language
protocol
state[?]

• Techniques

software engineering
software testing