Introducing Networking! - Computer Science Day 003

The Day 3 began with Computer Networking.Well, A computer Networking is a group of computer systems and other computing devices interconnected through communication channels.Why interconnected? Yes,the answer is simple to share data.Computer Network is used to facilitate communication and resource-sharing among a wide range of users. 

 

Now,how computer network works.As stated earlier computer network is a bunch of computer systems or devices.The devices that pass,share,terminate and  route the data are called NODES.Well, basically NODES are any devices that are attached to a network.Nodes can include hosts such as personal computers, phones, servers as well as networking hardware.

 

In computer networking you should know what "HOST" is.A host is a computer device connected to a computer network.Now,it sound like NODES right?So,let me clear the confusion A host is a computing device that controls or manages other NODES.Yes,A host is a single machine that is connected to internet and other nodes or devices can get information via  HOST.

 

TYPES OF NETWORKS:

There are several types of computer networks.Computer networks can be characterized by their size as well as their purposes.

Some different networks in terms of size

1.LAN or Local Area Network:

A local area network consists of a computer networks at a single site.A LAN interconnects computers or nodes within a small area.Most mid to large-sized businesses today use LANs, which makes it easy for employees to share information.

2.WAN or Wide Area Network:

As the name suggests Wide Area Network or WAN covers a wide are.A WAN spans a large physical distance. The Internet is the largest WAN, spanning the Earth. (i.e., any telecommunications network that links across metropolitan, regional, national or international boundaries)

3.MAN or Metropolitan Area Network:

MAN is a computer network that connects users with computer resources within a geographic area. WAN>MAN>LAN MAN is wider than LAN in range but smaller than WAN.

4.PAN or Personal Area Network:

PAN is a computer network organized around an individual person. Personal area networks typically involve a mobile computer, a cell phone and any other computer devices.

So,the first of the networking was sweet.Hope I will come up with some new topics next day.
Chill.