🗊Презентация Introduction to the Internet

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Introduction to the Internet, слайд №1Introduction to the Internet, слайд №2Introduction to the Internet, слайд №3Introduction to the Internet, слайд №4Introduction to the Internet, слайд №5Introduction to the Internet, слайд №6Introduction to the Internet, слайд №7Introduction to the Internet, слайд №8Introduction to the Internet, слайд №9Introduction to the Internet, слайд №10Introduction to the Internet, слайд №11Introduction to the Internet, слайд №12Introduction to the Internet, слайд №13Introduction to the Internet, слайд №14

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Слайды и текст этой презентации


Слайд 1





Computation and Problem Solving
Introduction to the Internet
Korzhumbayev Azamat
Описание слайда:
Computation and Problem Solving Introduction to the Internet Korzhumbayev Azamat

Слайд 2





Internet, Packets and Routing
Internet is a network of computer networks
Data is transmitted by packet switching using the standard Internet Protocol (IP)
Packet – a unit of information carriage
Packet switching – process of moving packets from one node (computer device) to another
Описание слайда:
Internet, Packets and Routing Internet is a network of computer networks Data is transmitted by packet switching using the standard Internet Protocol (IP) Packet – a unit of information carriage Packet switching – process of moving packets from one node (computer device) to another

Слайд 3





A Visualization of Internet
Описание слайда:
A Visualization of Internet

Слайд 4





A Visualization of Internet
Описание слайда:
A Visualization of Internet

Слайд 5





Internet, Packets and Routing
At the sender, data is broken into packets and sent to the nearest node (router)
At each router, it sends the packet to another router that is closer to the final destination
At the receiver, packets are reassembled to get the original data
A simple analogy: mailing system
Описание слайда:
Internet, Packets and Routing At the sender, data is broken into packets and sent to the nearest node (router) At each router, it sends the packet to another router that is closer to the final destination At the receiver, packets are reassembled to get the original data A simple analogy: mailing system

Слайд 6





Mailing System
Описание слайда:
Mailing System

Слайд 7





TCP/IP and Domain Names
Basic task of IP – moving packets as quickly as possible from one router to another
Yet, it doesn’t check whether packets are delivered successfully, thus need TCP
TCP (Transmission Control Protocol) – disassemble/reassemble packets, error checking, ACK packets
Описание слайда:
TCP/IP and Domain Names Basic task of IP – moving packets as quickly as possible from one router to another Yet, it doesn’t check whether packets are delivered successfully, thus need TCP TCP (Transmission Control Protocol) – disassemble/reassemble packets, error checking, ACK packets

Слайд 8





TCP/IP and Domain Names
We need some sort of address in order to identify different nodes, as if every house has a mailing address in order to receive mail from others
The one used by Internet Protocol is called IP address
Every host on the Internet has a unique IP address, made up of four numbers. E.g.. 192.56.215.131, each number is between 0 and 255
Описание слайда:
TCP/IP and Domain Names We need some sort of address in order to identify different nodes, as if every house has a mailing address in order to receive mail from others The one used by Internet Protocol is called IP address Every host on the Internet has a unique IP address, made up of four numbers. E.g.. 192.56.215.131, each number is between 0 and 255

Слайд 9





TCP/IP and Domain Names
The numbers in an IP address is hard to remember, while names are easier
Domain Name System – a mapping between the human-readable name (domain name) of a host and its IP address
A domain name consists of two or more parts, e.g. csse.iitu.kz
The rightmost label conveys the top-level domain, e.g. kz
Описание слайда:
TCP/IP and Domain Names The numbers in an IP address is hard to remember, while names are easier Domain Name System – a mapping between the human-readable name (domain name) of a host and its IP address A domain name consists of two or more parts, e.g. csse.iitu.kz The rightmost label conveys the top-level domain, e.g. kz

Слайд 10





TCP/IP and Domain Names
Each label to the left specifies a subdomain, in our example, subdomain is iitu (IT University), and sub-subdomain is csse (computer science & software engineering).
A top-level domain contains of multiple subdomains, each subdomain can contain multiple sub-subdomain, so on. 
Mapping between a domain name and an IP address is stored on DNS server.
Описание слайда:
TCP/IP and Domain Names Each label to the left specifies a subdomain, in our example, subdomain is iitu (IT University), and sub-subdomain is csse (computer science & software engineering). A top-level domain contains of multiple subdomains, each subdomain can contain multiple sub-subdomain, so on. Mapping between a domain name and an IP address is stored on DNS server.

Слайд 11





World Wide Web
The World Wide Web (commonly shortened to the Web) is a system of interlinked, hypertext documents accessed via the Internet.
It is created to share files/documents and overcome the barrier of different file formats
Hypertext refers to text on a computer that will lead the user to other, related information on demand.
Описание слайда:
World Wide Web The World Wide Web (commonly shortened to the Web) is a system of interlinked, hypertext documents accessed via the Internet. It is created to share files/documents and overcome the barrier of different file formats Hypertext refers to text on a computer that will lead the user to other, related information on demand.

Слайд 12





World Wide Web
hypertext documents are created using a special kind of document formatting or “markup” language called HyperText Markup Language (HTML).
HTML is sent or received over 
the network using HyperText 
Transfer Protocol (HTTP).
A browser is a software program which interprets the HTML documents and displays it on the user’s screen.
Описание слайда:
World Wide Web hypertext documents are created using a special kind of document formatting or “markup” language called HyperText Markup Language (HTML). HTML is sent or received over the network using HyperText Transfer Protocol (HTTP). A browser is a software program which interprets the HTML documents and displays it on the user’s screen.

Слайд 13





URLs and Client-Server Model
Two things are given by the URL
Exact location of the document
The method or protocol by which to retrieve and display the document
Example, http://www.dl.iitu.kz/index.html
http:// – specifies the protocol
www.dl.iitu.kz – specifies the host name / domain name
index.html – specifies the path of the document on the host
Описание слайда:
URLs and Client-Server Model Two things are given by the URL Exact location of the document The method or protocol by which to retrieve and display the document Example, http://www.dl.iitu.kz/index.html http:// – specifies the protocol www.dl.iitu.kz – specifies the host name / domain name index.html – specifies the path of the document on the host

Слайд 14





Putting it All Together
Описание слайда:
Putting it All Together



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