Unit 2 - Layers of the Internet Flashcards
Computer Device
A machine that can run a program including computers, tablets, servers, routers, and smart sensors
Computer Network
A group of interconnected computing devices capable of sending or receiving data
Computer System
A group of computing devices and programs working together for a common purpose
Path
The series of connections between computing devices on a network starting with a sender and ending with a receiver
Bandwidth
The maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second
Latency
The time it takes for a bit to travel from its sender to its receiver
Datastream
Information passed through the internet in packets.
Net Neutrality
The principle that internet service providers should treat all data traffic equally, regardless of its content, source, destination, or application
IP
A protocol for sending data across the internet that assigns unique numbers (IP addresses) to each connected device
IP Address
The unique number assigned to each device on the internet
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
Router
A type of computer that forwards data across a network
Redundancy
The inclusion of extra components so that a system can continue to work even if individual components fail, for example by having more than one path between any two connected devices in a network.
Fault Tolerant
Can continue to function even in the event of individual component failures. This is important because elements of complex systems like a computer network fail at unexpected times, often in groups.
Scalability
The capacity for the system to change in size and scale to meet new demands
