CIS 110 Midterm 1

Created by Mannish 

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25 terms

displacement effect

internet makes people antisocial

internet

the www's hardware

synchronous communication

sender and receiver are active at the same time (telephone)

Broadcast

1 sender, many receivers

multicast

many receivers, but not whole population

point-to-point

opposite of broadcasting

TCP

Transmission Control Protocol describes how packets are sent across the Internet.

packet

small chunk of data

domain name

dell.com instead of 143.166.83.38

crawler

software that crawls the web, follows links from one page to another while noting the content of each page crawled

query processing

software that examines search terms and uses indexes of pages related to those terms

search engines

find out the content of web pages and answer search requests (queries)

IP packet

small chunk of data with determined destination

intranet

local networks that support communication within an organization

legit sites have

physical existence, expertise, clarity, currency, and professionalism

ASCII

standard bit sequence for characters

byte

8 bits

Parity

whether a number is even or odd

escape key

control, alt, shift. not tab.

PandA

name for 2 fundamental patters of digital information based on the presence and absence of a phenomenon. Presence and Absence

root name servers

keep the master list of all of the name-to-address translations (IP to DNS)

WAN

wide area network, designed to send info between 2 locations widely separated and not directly connected

hub

connected to the internet, capable of broadcasting and receiving signals which the mobile computers can also send and receive

domain

hierarchy of related computers on a network

peers

computers on the same level of a domain name

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