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Web Technology Notes



                                   NETWORK
 à Network Is The Collection Of Computers And Interconnecting Devices  (Bridges, Switches ,Hub , Router ,Laptop etc.) Which are Connected To Each Other The Help Of Wire Or Without Wire For The Communication Purpose.
The 1st Network Is Devloped During 2nd World War By DARPA (Deffence Advance Research Project agency ) Wich Is a U.S.  Millitry Organisation That Devloped The 1st Network  That Is - ARPANET  
·     Types Of Networks à According to area And Range Network Is Devided In 3 Part…
·     LAN (Local area Network )  (0-5)
1.   PAN- Personal
2.  HAN- Home
3.  CAN- Compus
·     Man à  Within The City
·     Wan  ( Wide Area Network )à
1.   City To City
2.  Store to Store
3.  Country to Country Or Within City

·     Topology à It Is Method Or Manner  By Which We Can Connect The Computers Or Devices To Create The Network….
There Are Diffirent types Of Topology.
1.  Ring Topology à
2.  Bus Topoloogy à
3.  Tree Topology à
4.  Star Topology à
5.  Mess Topology à
6.  Hybrid Topology (More Than 1 topology ) à
In this Topology We Can Combine More Than One Tehnology….
Communication Media :à
1.   Guided Media /Wire
Ø Twisted Pair
Ø Co-axial Cable
Ø Optical Fiber

2.  Wireless /Unguided Media /Signals
Ø IR (Intrared)
Ø Micro waves
Ø Radio Signals
Ø Sattelite
Internet à Internet Is A Global  Connection Of Networks Over The World Wich are Connected To Each  Other with THE help Of wire Or  Without Wire For The Communication Perpose.
 The Internet Is Govern  By  Organization  
                                                                  I.          IAB à Internet Arcitecture Board
                                                                II.          IETF à Internet Engniring Task Force (Technology )
Benefits Of Internetà 
1.    Time Saving
2.    Cost Saving
3.    Security
4.    Provide Availablity
5.    Reliblity Of Data
6.    Sharing On Information
Application Or Use Of Internet à
Ø For Educational Purpose
Ø For The Communication Purpose Like  Soacial  Networking , Rights ,Audio, Video ,Chatting
Ø For The Banking Sector
Ø For Ecommerce Purpose
Ø For Flight, Bus,Train, Taxi, Booking ,Etc.
Ø Entertainments ..
Disadvantage OF Internet à
Ø Cyber Froud
Ø Cyber Attack
Ø Sharing The Fake News
Browserà:  Browser Is A Application Software That Used  To Search Any Website OR Webpages Called Browser..  I.E – Internet Explorer ,Firfox,Chrome, Safari… Etc
URL( Uniform Resource  Locator )à It Is A Human Understandble   Address Of Any Website Or Webpage To Access Any resource over Internet…
URl Is Combination OF Protocol ,Host Name , Domain Name ,Sub Domain Name Port Number No And Resource Name
Protocol à Protocol Are The Set Of Rules And Regulation To Govern The Proper Communication .
There Are many Protocols Are Difined
1-   HTTP= Hyper Text Transfer Protocol.
2-   HTTPS= Hyper Text Transfer Protocol Secure
HTTP+ SSL à HTTPS

3-    TCP =Transmission Control Protocol
Use   Online Secure Like à Phonecall
4-    UDP = User Datagram Protocol
Offline Secure Like  à Massage
5-    SMPT= Simple Mail Transfer Protocol
6-    POP = Post  Office Protocol
7-    FTP= File Transfer Protocol (UseFor Uploding & Downloading)
 Internet Protocol à

16

16
                                      

32 Bit


  biBit







64 Bit
 




Internet Exploreà Protocol is Used For Frangmelation And Recembilling  Of The Pocket b/w To this Similer Network.
Telnet à (Queen Command For Hacker) – Terminal Network
Host Name  à  It Is The System That  Provide The Services To The Customer /guest egà  Google Facebook etc.
Domain Name è
           Geographical
         Non Geographical
à  .in
è.gov
à .us
è.org
à.pk
è.edu
à.uk
è.com

Port No- è is a unlike  16 bit numeric Address that denote the protocoll


Website- è  website is a collection of web pages in the form of hypertext 
Web page : è web page is a collection of information written in the form of hypertext
Hypertext: è collection of text ,link, document , audio , video, graphics, images and animation is called hypertext



                              HTML ;
Stand For hyper text markup language. It Is A tag Based Langauge That Is Used For Creating The webpages or website.
HTML Is Developod By “Timburner lee” In 1990 At Suitzerland.
Properties Of HTML à
1.   HTML Is A Tag Based Language.
2.  HTML Is A Interpreted Langauge.
3.  HTML Is A Case Insensetive
4.  HTML Is Inteprted By Browser
5.  HTML Can-not Provide Any Logical Or Calculation Task.
6.  HTML is Browser Intepreted
Tag: à Tag iS A Predefined And Prestored Command For the Browser to perform the Particuler task And Store In Browser.
Type Of Tag: à  There  Are Two  Of Tag:
1-          Empty Tagà   The empty Tag Are Used  Alone And there Is No Need To Close The Tag…
2-          Container Tag à  There Tag Which  Are Used in Pair for Open And Close              
HTML Devolopment Tool    à
Editor à   Notepad, Dream viewer, notepad++
Web Browser à  Firefox, Chrome Internet Explorer, Safari..
Structure Of HTML Document:
-------

----------

Bold Tag à  Use To Provide Bold Format  Of The Text.
                        Syntax -: ------
Underline Tag à  Use To Provide Underline Of The Text.
                        Syntax-: ------- 
Italic Tag - à  Use To Provide Italic The Text Format.
                        Syntax:- -------
 Break Line à It Is A Empty Tag That Is Use To Provide Line On Webpage.
                        Syntax-:     ------------
Note:  The Browser Can Not accept Any Extra Space Tag For New Line Or Any Formatic Directaly On The Webpage  from the Editor.
Program è   “Computer” Is An “Electronic Device”
                                    That Take Input -----> Process----->Output.
                          And Father Of Computer Is “Charles Babbage”
In HTML-:
HTML EXAMPLE

“Computer” Is An Electronic Device

That Take  Input----> Process--->Output.

And Father Of Computer Is “Charles Babbage”

Big Tag à Use To Increase The  Size Of The Any Text. The Defult Size Of Text +3.  
Syntax-:   ---------
Small  Tag  à  Use To Decrease The Size Of Any Text. Defult Size Of  Text: -3
Syntax -: -------
Tally Type Tag à  This   Tag Is  Used To Display  The Text.Like The Type  written Format That Contains The Monospace In Each Character
Syntax -: ----------
Pre-Formated Tag
à   It Is Used To Display Text It Is like The Editor Text Contain  Extra Space.
Syyntax:- 
--------
Example:-   
                        <span style="mso-spacerun:yes">  </span>Html Example
                       

                        --------
                        ---------
            ------------------
            
---------------
           
  
Heading Tagà   In Html We Can Created 6 Type Of Heading.

to

And

Is  Largest
Is Smallest. All Heading Tag Provide Extra New Line

Subscript Tag à  Use To Display The Text Bellow To Text.
                                                ----------------------
Superscript Tag à Use To Display The  Text Above To The
                                                            Normal Text.
                                                ------------      
Strike Tag à Use To Draw  A Horizontical  Line Between The Text. 
                                    /-------------/
Center  Tag
à  Use To Perovide Center Alignment Of  Contains.
                                                Syntax-:
-------------
Example à   
                       

Example Of Heading

                   

Formula Of ”Sulphuric acid”=H2

                    SO4

                   

Mathematical Eqaution Is =10X 3 +15Y

2 +50z


The Old Price Of   “Iphone 8” Is = 69,999 Rs. But New Price Is 65,999

Font Tag è  This  Tag Is Use To Change The Font  style ,color, and Size Of The Text.
(A)  Attributes Of Font Tag è  
1.    Size- Use to Change Size
2.    Color:- Use to Change the Color.  There Are Two Methods:
                          i.          Direct Method à Like Red, Black
                        ii.          RGB  Method à RGB  Is Stand for red ,green and blue ,it is a universal color That Is use to create the mixing of colors it is stant with #symbol with hexa Decimal Code From 0 to F
#00,00,00
Red             Green          Blue
      Color
   Min
    Max
   Red
         00
      FF
  Green
        00
     FF
  Blue
        00
    FF

                                                           
                                                            #00000à Black
#ffffffà White
#ff0000à Red
#ff00ffà Purple
#ffff00à Yellow
(B)  Size :-
(a)   Absolute Method à [1-7]
IICS
(b)   Relative Method à [+,-]
Student
(C)  Face :--  Its IS Use to Change The Font Style Of The Text.
Syntax-- Hello   
Hello World


IICS
Student     
In Html


 Some Impotant Code à   


Location: Allahabad, Uttar Pradesh, India

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