What is a computer?
An electronic device that takes inputs, processes them, and returns them as outputs
Input
Data fed into the computer via devices like mice and keyboards
Output
Data the computer returns via monitors and such
Storage
Data stored for future use
Hardware
The physical components of a computer
Software
Instructions the hardware executes to function
Network
A connected group of things or people
Graph
A diagram used to show the connections in a network
Node
A circle on a network graph and used to represent a connected item. Nodes are used to represent many things.
Computer network
Two or more connected computers that share resources
Client
The client requests data from the server.
Server
The server responds to requests from the clients.
P2P
(Peer to Peer) A type of connected network where each member has equal responsibility as client and server.
LAN
Local Area Network; a network covering a small geographical area
PAN
Personal Area Network; a network consisting of few devices around few people
WAN
Wide Area Network; a network that covers a wide geographical area
