Unit 2 Vocab Flashcards
(22 cards)
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.
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.
Protocol
An agreed-upon set of rules that specify the behavior of some system.
IP Address
The unique number assigned to each device on the Internet.
What is Internet Protocol (IP)
A protocol for sending data across the Internet that assigns unique numbers (IP addresses) to each connected device.
Router
A type of computer that forwards data across a network.
Packet
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.
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.
HTTP
HyperText Transfer Protocol - the protocol used for transmitting web pages over the Internet.
Internet
A computer network consisting of interconnected networks that use standardized, open (nonproprietary) communication protocols.
World Wide Web
A system of linked pages, programs, and files.
Digital Divide
Differing access to computing devices and the Internet, based on socioeconomic, geographic, or demographic characteristics.
Datastream
Information passed through the internet in packets.
Packet Metadata
Data added to packets to help route them through the network and reassemble the original message.
Transmission Control Protocol (TCP)
A protocol for sending packets that does error-checking to ensure all packets are received and properly ordered.
User Datagram Protocol (UDP)
A protocol for sending packets quickly with minimal error-checking and no resending of dropped packets.
Scalability
The capacity for the system to change in size and scale to meet new demands.
The Domain Name System (DNS)
The system responsible for translating domain names like example.com into IP addresses.
