Ap Comp Sci Internet Unit

Computing Device

A machine that can run a program including computers, tablets, servers, routers, and smart sensors

Computing System

A group of computing devices and programs working together for a common purpose

Computing Network

A group of interconnected computing devices capable of sending or receiving data

TCP

Send large messages over the Internet when accuracy is most important. Sorts into packages.

SSL/TLS

Layer of safety that prevents snooping or hackers online (S for safety)

IETF

Internet Engineering Task Force-Collection of volunteers heavily involved in internet and come up with protocols

UDP

Send large messages over the Internet when speed is most important. It is a connectionless protocol that does not guarantee message delivery or order, making it faster but less reliable than TCP.

DNS

Translates human legible domains into IP addresses that can be used by internet

IPv6

IP address system that uses 128 bits

SMTP

Simple Mail Transfer Protocol-protocol for handling internet mail transmission. It is used for sending emails between servers and is a fundamental part of email communication on the Internet.

Digital Certificate

Official ID proving website is what it claims to be

Streaming

Constant stream of packet

Browser

Software allows user to access the internet

Router

Computers receive and forward data to IP addresses

Internet Hierarchy

From bottom up—physical network, IP, TCP/UDP, DNS, HTTP

HTTP

Language devices use to communicate with each other to start the flow of data