Unit 1
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What is a bit?
It is a “binary digit” where it us a single unit of information
What is bit rate?
The number of bits that are sent, conveyed, or processed in a certain time frame
What is a binary question?
A question with only two possible answers
What is a binary message?
A message that can only be one or two values
What is bandwidth?
Transmission capacity, measured by bit rate
What is latency?
The time it takes for one bit to travel from a sender to a receiver
If a user clicks on a website, and it begins to load immediately, but it takes a long time to load completely and pictures appear slowly, one by one, what is it in terms of bandwidth and latency?
High bandwidth, low latency
What is the preliminary sketch of the model idea for something new, and it is the original drawing from which something real might be created?
Prototype
What is a novel or improved idea, device, or product, or the development thereof?
An innovation
What is a protocol?
A set of rules governing the exchange or transmission of data between devices
What is permutation?
An ordered arrangement of objects
What is a number system?
A collection of symbols and the rules for ordering them
What is code?
Instructions for a computer
What is abstraction?
Reducing information and detail to focus on the essential characteristics. To break problems up into separate pieces and solve separately and then recombine all the parts to forma a complete solution
What is Internet?
A group of computers and servers that are connected to each other
What is a server?
A computer that waits for and responds to requests for data
What is a client?
A computer that request data stored on a server
What is TCP?
Transmission Control Protocol, which provides reliable, ordered, and error checked delivery of a stream of packets on the Internet
What is an IP address?
A number assigned to any device connected to the Internet
What are packets?
Small chunks of information carefully formed from larger chunks of information
What is a router?
A computer that receives messages traveling across a network, and redirects them towards their intended destinations based on the addressing information include with the message
What is URL?
Uniform Resource Locator, which is an easy-to-remember address for calling a webpage
What is DNS?
Domain Name System, which is the internet’s system for converting alphabetic names (URL’s) into numeric IP addresses
What is HTTP?
Hyper Text Transfer Protocol, which is a protocol used by the World Wide Web. It describes how messages are formatted and interchanged, and how web servers respond to commands