(P1) INTERNET:

Internet is a global wide area network that connect not just computers systems, but other devices across the world. Internet needs some several high-bandwidth data ‘lines’, it is the internet’s backbone, there is no internet without it. These ‘lines’ are connected to internet hubs and it is used to distribute data to other locations such as web servers and ISPs. 

WWW:

The World Wide Web (WWW) is a network of online content that is formatted in HTML and accessed through HTTP. These terms refer to all the HTML pages linked that can be accessed over the internet. The purpose of existed of the World Wide Web Consortium (W3C) is to lead the WWW to its potential development and developing protocols to promote evolution and ensure its interoperability.

HOW DOES INTERNET OPERATES?

Internet traffic is divided into parcels of data called ‘packets’. The packets split apart when u hit “Send” and comeback together when they arrive at their destination, which is from devices to devices. These packets are converted into pulses of light to radio signals that travels through a cable to a device called a router. Meanwhile, the router sends the packets along to their destination.

But what if there are a lot of packets moving through a junction? Example: If there are too many of email sending to a device, your mail will delayed by a second or two.

SERVERS:

A server is either a computer, a device or a program that is used and dedicated to manage networks resources. It is often reffered as dedicated because servers hardly carry out any other tasks apart from their tasks. Basically in theory, whenever a computer share some resources with client machines, it is considered as server. These are the examples of servers:

·       Application server

·       Game server

·       Communications server

·        Computing server

·        Database server

·        Fax server

·        Mail server

·        Print server

·        Sound server

The purpose of server is to share data and dedicated to share other resources and distribute work from devices to devices vice versa.

THE TYPES OF CONNECTIONS:

1.       Internet Service Provider – ISP are organizations that provide access to the internet using dial-up broadband or fiber optic connection

2.       Dial-up – Dial-up connects to a telephone connection in a system of many lines shared by many users. It is established and maintained for a limited of time duration. The purpose of dial-up is a dedicated connection which is continuously in place.

3.       Cable – You go through your local cable company to get internet services by the cable that brings your TV programming rather than phone lines. This is one another types of broadband service and it’s relatively quick.

4.       Broadband – Broadband connection delivers some digital information through DSL or cable lines that provides fast internet connectivity without an interruption to phone lines.

5.       World Wide Web – it is a system that allows users to exchange files and information through the internet website.

EQUIPMENTS for internet:

Some of the common equipment to provide internet services are: Broadband, wireless, DSL, satellite and fiber-optic internet. Each service comes with different types of internet equipment to ensure you have a quality connections.

1.       Modem – Modems are an important piece of internet equipment because it connects you to the internet. If you have DSL or dial-up internet, your modem connects to telephone lines while cable internet uses “coaxial cable” to access the internet.

2.       Router – Wireless routers works with a modem as part of a wireless network infrastructure. Routers take information through the modem and delivers it to your computer or wireless devices.

3.       Ethernet Cable – A lot of people uses Wi-Fi network to connect, Ethernet cable speeds up your connection.

4.       Satellite Dish – For those who chose satellite internet, it will need more internet equipment than those other types of internet connections. The satellite dish will then connect to its satellite in space which delivers the TV programming and internet connection.

Worldwide Web consortium (W3C):

It is a major body in ensuring the worldwide web grows in ways that are accessible and useful in some ways. The mission for full potential by developing protocols and guidelines to ensure long term web growth. It is also to ensure industry experts comply with certain core principles and structures and operate using compatible HTML coding to maximize the accessibility and benefits of the material.

Internet society (ISOC):

A global company that focuses efforts on internet-related standards and supports several smaller administrative bodies. It is the same as the worldwide web in a way that both want the internet to flourish in a useful way

NETWORK:

A system that consists of two or more linked computer devices and can communicate with each other in a certain way. There are several different network connections including:

·         Home-area Network (HAN)

·         Local-area Network (LAN)

·         Wide-area Network (WAN)

·         Metropolitan-area Network

Wireless networks use LAN connections via radio waves to connect different devices and quickly cut wired connections because of the benefits they hold.

WI-FI:

- It allows wireless connections between devices using certain radio signals which allows access to the internet and other computers on the network. However, the router must be connected to the internet to provide internet access to the connected device. It is useful because it allows internet access without any cables and can be taken as long as it is within the wireless router environment.