Video 1 Notes

packet - small amount of data sent over a network, each packet includes the source and the destination of information
computer system - group of computing devices and programs working together for a joint purpose
computer network - type of computing system, group of interconnected computing devices capable of sending or receiving data
packet switching - message is broken up into packets and sent in any order, packets are reassembled by the recipient’s device
routing - process of finding a path from sender to receiver
path - sequence of directly connected computing devices that begins at sender and ends at receiver
bandwidth - maximum amount of data that can be sent in fixed amount of time on a computer network

Video 2 Notes

protocol - agreed upon set of rules that specify the behavior of a system
OSI - layers you go through to communicate, 7 groups of protocols- physical, data link, network, transport, session, presentation, application.
IETF - manages development of standards and technical discussions concerning the internet in an open and collaborative process
TCP - establishes a common standard for how to send messages between devices on the internet
packet contains data that is being transmitted as well as metadata containing info used for routing info
internet is scalable - can change in size and scale to meet new demands
local area network (LAN) - physical connections limited by hardware and physics
intranet - LANs connected by Routers within an organization
AS - large Intranets linked together under the control and policies of major organizations. Large routers ink networks with large telecommunications connections
the internet - autonomous systems linked together.
transport layer - how packets are sent, and for what
web server - programs running on machines connected to the internet
domain name service - applications that translate a human readable URL
www - network of linked data and programs running over the internet, NOT the internet

Screenshot 2022-10-16 222856