Chapter 3.docx

5 Pages
Unlock Document

Ryerson University
Information Technology Management
ITM 350
Franklyn Prescod

Chapter 3 – Evolution and Applications of the Internet Introduction  Internet Protocol (IP) is a protocol that uses a set of rules to send and receive messages at the internet address level  Transmission Control Protocol (TCP) is a protocol that uses a set of rules to exchange messages with other internet points at the data packet level History of the Internet  IP address is a method of addressing every physical device on the internet to allow any device to communicate with any other device  Domain name system translates names into IP addresses  Domain name services (DNS) is an internet site that provides a table for translating domain names into IP addresses (ex. .com, .net, .ca)  Packet switching is a method of transmitting data by breaking it up into small segments or packets and sending the packets individually in a stream, the packets are not necessarily sent together but rather are disassembled, transmitted separately and then reassembled when they arrive at their destination  Protocol is a special set of rules that the sending and receiving points in a telecommunication connection use when they communicate  TCP/IP is a set of protocols based on the TCP and the IP The Canadian Internet  Internet backbone is an organized & managed communications system, often based on fibre-optic cables that forms the central connection for a section of the internet  Asynchronous transfer mode (ATM) is a switching technology that organizes digital data into 53-byte cell units & transmits them using digital signaling technology. A cell is processed asynchronously relative to other related cells o National Test Network (NTN) was 1 of the first national ATM networks in the world  Point of presence (POP) is an access point to the internet that has a unique IP address International Developments  Internet Architecture Board (IAB) has 2 important continuing task forces: o Internet Engineering Task Force (IETF)  It was established to help coordinate the operation, management & evolution of the internet  Community of network designers, operations, vendors & researchers concerned with the internet & its protocols o Internet Research Task Force (IRTF)  It was formed to promote research in networking & the development of new technology  Community of network researchers generally with an internet focus Internet Technologies and Applications Electronic Mail  Aka email  Oldest & simplest internet mail protocol is SMTP (Simple Mail Transfer Protocol)  Most widely used protocol is POP3 (Post Office Protocol version 3)  Other protocols are o IMAP o MIME  Email is key for business opportunities such as o Used for viral marketing o Used for search-engine marketing o Generating web storage revenues o Generating sales of email-enabled telephones The World Wide Web (WWW)  Refer to figure 3.1 for client-server network on pg 56  Client is a computer that is used by a network user to gain access to & operate applications on the network  Server is a large central computer that forms the nucleus of a network & contains the network operating system as well as case-specific network-based applications  Refer to figure 3.2 which expands diagram in figure 3.1 on pg 57  Web server is a server attached to a network; it is dedicated to specific applications that must be run on the World Wide Web, used by web users or interfaced very closely with the web  Uniform resource locator (URL) is the address of a resource on the WWW HyperText Markup Language (HTML)  HTML is a specialized coding language that is used to encode content so it can be displayed in a web browser o Figure 3.3 on pg 59 shows HTML with source code  Source code is the format in which a program is written that can be read by humans and that is then converted into a different format that the computer can recognize  Metatags are coding statements in HTML that identify the content of a website o Are used by search engines to identify webpages HyperText Transfer Protocol (HTTP)  HTTP is a set of rules used in exchanging files (such as text, graphics,
More Less

Related notes for ITM 350

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.