Thursday, May 6, 2010

3- Networking Basics - Networks Types ( Lan - Man - Wan )!

1st _ Lan (Local Area Network) :
the Local Area Network its its covering asmall physical area like company ore home or use small grouping in the building and this Lan  its too speed its between 10Mb or 100Mb or 1000Mb or 10Gb and the destance about it 1 k.m .. 


2st _ Man (metropolitan area network) :
the metropolitan area network is larger than Lan it can be in the city or in the larg places and the metropolitan area network is interconnects a number of Lans by using abackbone cables but the destance abot man can be 1-10 k.m and MANs can also depend on communications channels of moderate-to-high data rates. A MAN might be owned and operated by a single organization, but it usually will be used by many individuals and organizations. MANs might also be owned and operated as public utilities. They will often provide means for internetworking of Local Networks for example google company !


 3rd _ Wan (Wide Area Network) :

the Wide Area Network meaning its broad area and its contains alot of Networks connected to each other hmm so we can called the internet is Wan .. ya you can say the internet is the Wan Network ...

2- Networking Basics - Networks History !

in the past it was not fount any networks so it was alot of time lose cause if you from canada and another one from germany and you need to send to it files or message how can you make ?
you have to go to him and it was take along time ...

the mainframe computer :



in the past it was found abig computer called mainframe its asuper computer cause it was having abig storage memories and its too speed cause it having a great processing speed  and very expensive !


hmm so what was can be use this main frame look at this photo it will share to you what was working on the networking 



it was connected to another pc's and this pc's called Dump terminal and when the employee finish him or her works he should save him or her files on this mainframe and this pc's was send input to the mainframe and out put from the main frame and the pc about user1 can enter to the pc about user 2 or 3 or 4 one of those combinations or pc2 can enter to the pc3 or 4 or one of those combinations ...





Now it found alot of pc's (Personal computer) and can communicate by the cables and abig company not need to get the mainframe we can now share with us alot of files and exchange fot informations by cables !

Wednesday, May 5, 2010

1- Introduction to Network+ Certification (Way to Networking) - (Simple)

Network+ Certification - Comptia

1st _ what is Comptia company ?
this company having alot of certificates about about Network + or security + or Linux + or server + or Comptia A+ and .. etc 


in My tutorial we will learn more about Network + and this tutorials will be progress in the future to support Microsoft company or Cisco Company 


2nd _what is the comptia Networke+ certification ?
this certification is the fist step on the Networking Fields so if you need to be professional in the Networking you should take this certification or make your first step on the Networking Field .. it mean this certification it learn you all faundmentals about Networking to be professional .. it will learn you how to configure and troublshooting and klnow what is the protocols and learn you what is the meaning of OSI layer and learn you how to subnetting and speaking about Networking Topologies and devices and cables and what is the Lan Networking or Wan Networking and Networking Basics and NAT and VPN .. More info

Tuesday, May 4, 2010

Networking Basics - What is Network ?

what is the Network 
1st _ For example we are on the big company and this company having alot of employee and all of this employee having one printer what should be make all of this employees ? 

 this is the answer about it the all of this employees can using this printer by sharing and connecting with us and all of them can using this printer ok now  i think you got my meaning !


 
2nd _ For example we need to send files to anothere employee .. what will you make ?

this is answer you can send the files from your pc to him or her pc by the Network by cables .. hmmm so you need to tell me the Network meaning information sharing & exchange no not  information sharing & exchange nothing .. you can be comfortable and making  alot of jobs fast  no need to take along time to make your jobs and you can exchange our files easy by the Network  !


 


3rd _ so what is the meaning of the Network ?

the meaning of Network is Two or more connected computers that can share resources resources can be (Data - informations - printer - Applications or) .