Data Communication between the Computers in the Network

Perhaps you wonder why computer networks are still needed, while computers are now sophisticated enough? From the early era of computer network development to date in the era of super-sophisticated computers, the answer to that question remains the same. Computer networks can increase standard and save costs.

1 Install Computer Networking Simplified

Basic steps to make a simple star topology network
a. Buy a UTP cable, cut how much  you have a computer’s.
b. Buy a hub / switch with RJ-45 port, buy a network card with RJ-45 port, and install on each computer.

IPv4/IPv6 Addressing Notation

IPv4 Addressing Notation

An IPv4 address consists of four bytes (32 bits). These bytes are also known as octets.
For readability purposes, humans typically work with IP addresses in a notation called dotted decimal. This notation places periods between each of the four numbers (octets) that comprise an IP address. For example, an IP address that computers see as

00001010 00000000 00000000 00000001

is written in dotted decimal as
10.0.0.1
Because each byte contains 8 bits, each octet in an IP address ranges in value from a minimum of 0 to a maximum of 255. Therefore, the full range of IP addresses is from 0.0.0.0 through 255.255.255.255. That represents a total of 4,294,967,296 possible IP addreses.

Way of job computer network

Information Technology (IT) has become an integral part of modern life. Among its most important functions are the efficient transmission of information and the storage and analysis of information. The workers described below all help individuals and organizations share and store information through computer networks and systems, the Internet, and computer databases.
Network architects or network engineers are the designers of computer networks.

Architecture Network Model OSI

Model OSI ( Open System Interconnection) have been developed by Organization Standardization for international ( ISO) as model of computer communications architecture and as framework for the development of standard of protocol, consist of seven layer, that is :

1) Application
2) Prersentation
3) Session
4) Transport
5) Network
6) Datalink