MIS Chapter 7
Major components of a simple network
1. client and server computers 2. network interfaces 3. connection medium 4. network operating system 5. hubs, switches, routers
Key digital networking technologies
1. client/server computing 2. packet switching 3. TCP/IP and connectivity
Physical transmission media
1. twisted pair wire 2. coaxial cable 3. fiber optics cable
3G networks
144 Kpbs. Suitable for e-mail access and web browsing but no videos.
Computer Network
2 or more connected computers
Mobile Search
50% of all of the searches in 2016, and will continue. Searching things on a mobile device
Voice over Ip
Digital voice communication using packet switching which will avoid all the tolls charge by local and long-distance telephone networks.
What organizations and government bodies establish Internet standards?
IAB, ICANN, W3C
Bluetooth
Links up to 8 devices in 10-m area using low-power, radio-based communication. Useful for personal networking
Packet Switching
Method of slicing digital messages into parcels, sending packets along different communication paths as they become available, and then resembling packets at the destination
CDMA Code Division Multiple Access
USA only. Verizon and sprint cellular service.
router
a communication processor that routes packets of data through different networks, ensuring that the data sent get to the correct address
Virtual Private Network
a secure, encrypted, private network that has been configured within a public network to take advantage of the internet.
Internet2
an advance networking consortium representing more than 500 US universities, private businesses, and government agencies. Developed high-capacity 100 gbps testing network. The testing will lead to new technologies for the Internet.
Social Search
an effort to provide fewer, more relevant, and trustworthy results based on a person's network of social contacts.
Search Engines
attempt to solve the problem of finding useful information on the web nearly instantly.
Wikis
collaborative websites where visitors can add, delete, or modify the content on the site.
Internet Service Provider
commercial organization with a permanent connection to the internet that sells temporary connections to retail subscribers.
Unified Communications
communications systems that integrate voice, data, e-mail, and conferencing.
Local Area Networks
connects personal computers and other digital devices with a half mile radius. Client/server: resides on a single server. Peer-to-peer: all processors are equal
The Domain Name System
converts IP addresses to domain names
Digital signal
discrete, binary waveform rather than a continuous waveform.
Social networking sites
enables users to build communities of friends and share information
Internet Protocol Address
every computer on the internet is assigned this.
HTML: Hypertext Markup Language
formats documents and incorporates dynamic links to other documents and pictures stored in the same computers.
Software-defined networking
functions of switches and routers managed by a central program
Global System for Mobile Communications GSM
international roaming capabilities. T-Mobile and AT&T
Telnet
logging onto one computer system and doing work on another.
switch
more intelligent than a hub and can filter and forward data to a specified destination on the network
Broadband
more than 74% have access to this
Web 3.0 and The Future Web
more tools for individuals to make sense of the pages on the internet, pervasive web, internet of things, internet of people, app internet, increased cloud computing, mobile connectivity, greater seamlessness of the web as a whole
Metropolitan Area Networks
network that spans a metropolitan area, usually a city or major suburbs.
Wireless Sensor Networks WSN
networks of hundreds of interconnected wireless devices. this is used to monitor building security, detect hazardous substances in the air, monitor environmental changes, traffic, and military activity.
Network Service Providers
own trunk lines which are high-speed backbone networks
Tunneling: PPTP
packets of data are encrypted and wrapped inside other packets to hide the message.
Blogs
personal website that typically contains a series of chronological entries by its author and links to related web pages.
Visual Search and Visual Web
photos and videos. pinterest where pictures replace words
RSS Really Simple Syndication
pulls specified content from websites and feeds it automatically to user's computers
Analog signal
represented by a continuous waveform that passes through a communications medium and has been used for voice communication
Network operating system
routes and manages communictions on the network and coordinates network resources.
TC/IP and connectivity
rules that govern transmission of information between the two points. 4 layers: application, transport, internet, and network interface
Web 2.0
second generation interactive internet-based services. enable collaboration, sharing information, and creating new services online.
Microbloging
short posts of 140 characters or less.
hub
simple devices that connect network components, sending a packet of data to all of the connected devices
Web servers
software for locating and managing stored web pages.
Wide Area Networks
span broad geographical distances-entire regions, states, and continents. The Internet is an example
Search engine marketing
sponsored advertisements and pop-ups
Convergence
telephone networks and computer networks converging into single digital network using Internet standards
Hyper Transfer Protocol HTTP
the communications standards that transfers pages on the web.
Domain Name
the english-like name that corresponds to the IP address to each computer
Uniform Resource Locator URL
the entire name is the url. this is the http, the domain name.
Semantic Search
the goal of building a search engine that can actually understand the human language and behavior.
IPv6
the new addressing scheme for IP numbers. this will provide more than a quadrillion new addresses and it is not compatible with current IPv5 addressing
Search engine optimization SEO
the process of improving the quality and volume of web traffic to a website by employing a series of techniques that help a website achieve a higher ranking with the major search engines when certain words and phrases are put into the search field.
Client/server computing
this is a distributed computing model. Clients are linked through network controlled by network server computer. The server will set rules of communication for network and provides each client with an address so others can find it on the network. Has replaced mainframe computing. The interest is the largest implementation of this
Blogosphere
totality of blog related websites
File Transfer Protocol
transferring files from computer to computer
Modern
translates digital signals into analog form and vice versa
4G netowrks
up to 100 mbps. suitable for the internet video. LTE and WiMax
intelligent agent shopping bots
use intelligent agent software for searching the internet for shopping information.
Wi-Fi
used for wireless LAN and wireless Internet access. weak security features
Radio Frequency Identification RFID
uses tiny tags with microchips containing data about an item and location. tag antennas to transmit radio signals over short distances. Automated toll-collection and tracking goods in a supply chain.
Broadband Wireless
voice, data communication are increasingly taking place of this
WiMax
wireless range of 31 miles. requires antennas.
The Internet
words most extensive network