ISP, IP and how the Internet works?

ISP:

An ISP (Internet Service Provider) organization that provides access to the Internet. Connection to the user is provided via dial-up. Customers are generally billed a fixed rate per month, but other charges may apply.

IP ADDRESS:

An IP address (Internet Protocol address) is an address of a connected device in an IP network. Every desktop and laptop computer, server, scanner, printer, modem, router, smartphone and tablet is assigned an IP address, and every IP packet traversing an IP network contains a source IP address and a destination IP address.

HOW DOES THE INTERNET WORK?

The internet starts with a web server and it goes through a process. It then passes through a domain name server and goes through the router then a modem before it is passed through to the computers. The internet is stored in many servers and is provided to clients through ISP's.

DATA CENTRES!

What is a Data Centre?
A Date Centre is a large group of networked computer servers typically used by organizations for the remote storage, processing, or distribution of large amounts of data.

60 Hudson Street!

 60 Hudson street is a Telecommunication building that spreads between Hudson Street, Thomas Street, Worth Street, and West Broadway in the TriBeCaneighborhood of Manhattan, New York City.

What is the name of the main data centre in another European country?
Interxion is the biggest European provider of carrier and cloud-neutral colocation data centre services. It was founded in Netherlands in 1998.
      

IP ADDRESSES!

What is an IP address?
IP means Internet Protocol and an IP address is a numerical label given to every device in a computer network that uses an Internet Protocol for communication, e.g. computer and printer.

How to find your public IP address?
To find your own IP address you can just go on Google and type in IP address and it should come up with your 32 digit number.

If you are connected to a LAN (local), find your private IP address. What does an IP address connect?
That would be those network computers that are linked to a router and share the same IP address. Included in that number are home/office networks. All routers have an IP address built in.
 
What is the difference between static and dynamic IP addresses?
A static IP address is an address that does not change over time unless changed manually,. A Dynamic IP address is an address that keeps on changing

What is the IP address of famous websites such as bbc.co.uk, twitter.co.uk and youtube.co.uk?

 bbc.co.uk = 212.58.246.93

twitter.co.uk = 128.242.240.244

YouTube.co.uk = 208.65.153.238

 

 

When and why could we want to use IP addresses to trace and track people?

If someone commits a crime or something dangerous is happening they can track that device down and go and sort it out.

SERVERS!

E-MAIL  SERVERS!

A mail server, which is also know as a Mail Transport Agent, application that receives incoming e-mail from local users (people within the same domain) and remote senders and forwards outgoing e-mail for delivery. Microsoft Exchange, gmail, Exim and sendmail are among the more common mail server programs.

FILE SERVERS!

In computing, a file server (or fileserver) is a computer attached to a network that has the primary purpose of providing a location for shared disk access, i.e. shared storage of computer files, that can be accessed by the workstations that are attached to the same computer network. File servers are commonly found in schools and offices, where users use a LAN to connect their client computers



PRINT SERVERS!

Networks Components

NETWORKS COMPONENTS:



Computer networks share common devices, functions, and what features including servers, clients, transmission media, shared data, shared printers and other hardware and software resources, network interface card, local operating system, and the network operating system.

 

These might include

• Hubs- 
• Bridges-
• Routers-
• Gateways
• CSU/DSU
• Network interface cards (NICs), ISDN adapters, and system area network cards
• Wireless access points (WAPs)
• Modems
• 

LAN, MAN, WAN

LAN:
Stands for "Local Area Network," and is pronounced like "land" without the d at the end.  LAN is a computer network limited to a small area such as an office building, university, or even a residential home. Businesses today use LANs, which makes it easy for employees to share information 

MAN:
Short for Metropolitan Area Network, a data network designed for a town or city. MANs are larger than local-area networks (LANs), but smaller than wide-area networks (WANs). MANs are usually characterized by very high-speed connections using fibre optical cable or other digital media.

WAN:
A wide area network (WAN) is a geographically dispersed telecommunications network. The term distinguishes a broader telecommunication structure from a local area network (LAN). A wide area network may be privately owned or rented, but the term usually connotes the inclusion of public (shared user) networks.An intermediate form of network in terms of geography is a metropolitan area network (MAN).

The Difference Between WWW and the Internet

The Difference Between WWW and the Internet!

WWW stands for World Wide Web. The Web consists of pages that can be accessed using a Web browser. The Hyper-Text Transfer Protocol (HTTP) is the method used to transfer Web pages to your computer. With hypertext, a word or phrase can contain a link to another Web site. All Web pages are written in the hyper-text mark-up language (HTML), which works in conjunction with HTTP.

The Internet  The Internet is a global wide area network that connects computer systems across the world.. Things like Telnet, FTP, Internet gaming, Internet Relay Chat (IRC), and e-mail are all part of the Internet, but are not part of the World Wide Web. It includes several high-bandwidth data lines that comprise the Internet "backbone." These lines are connected to major Internet hubs that distribute data to other locations, such as web servers and ISPs.

                                                         


     

             WWW

 

INTERNET