Computer Science Key Concepts: Programming, Hardware, and Internet

Sequence

generic code, step-by-step instructions

Repetition

loops

Selection

(like if statements)

Input

data sent to a computer for processing

Output

data sent back from program to drive

Abstraction

a representation or generalization of a complex concept that helps manage complexity by allowing us to focus on general qualities rather than detailed specifics

Motherboard

the part of the computer that houses all main electrical components(RAM,CPU,ect)

Internet

the global public network of independent and autonomous networks that are governed by the Internet Protocol Suite

TCP/IP

Transmission control protocol/ Internet Protocol

World Wide Web (WWW)

an application that runs on the internet and it is a collection of documents images, and resources that are stored on the internet

HTTP

hyper text transfer protocol

High-level languages

human-readable (source code)

Low-level languages

machine readable (binary)

Algorithm

a step-by-step procedure for solving a problem or task

Hardware

the computer's electrical and industrial components

Software

the computer programs or code that controls the hardware

General Purpose computers

can run any program

Specialized Purpose computers

have fixed programs

RAM

stores memory short term while computer is running

CPU (central processing unit)

carries out the instructions for the computer

Storage devices

stores data permanently when power is off

Input devices

Keyboard, mouse, touch screen

Output devices

speakers

Variable

a representation of a memory location

Interpreter

checks code for typos, translates the code and runs the program inside of it

Python interpreter

EX: python is interpreted with the python interpreter