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