Code.org: Unit 2 - Lesson 5-7 Vocabulary

Information passed through the internet in packets.

A chunk of data sent over a network. Larger messages are divided into packets that may arrive at the destination in order, out-of-order, or not at all.

Data added to packets to help route them through the network and reassemble the original message.

A protocol for sending packets that does error-checking to ensure all packets are received and properly ordered.

A protocol for sending packets quickly with minimal error-checking and no resending of dropped packets.

The capacity for the system to change in size and scale to meet new demands.

A system of linked pages, programs, and files.

The system responsible for translating domain names like example.com into IP addresses.

A protocol for computers to request and share the pages that make up the world wide web on the Internet.

Differing access to computing devices and the Internet, based on socioeconomic, geographic, or demographic characteristics.