Introduction of Computer Networks

Why need a computer network?

• Stand alone Computer ….

For what  ???

Some of the highlights of the Network Computer?

• Easiness
• No distance
• Mobility
• Efficient

Network Administrator,…

profit

• Good salary
• Control other peoples
• Faster than others
• Relax

loss

• ERROR, then people want to kill YOU 

Study…

Basic Theory of Networks

• OSI Layer dan TCP/IP
• Network devices
• Routing
• WLAN
• Networking aplication 
• Network security

The Basics

• Network is a system consisting of computers, additional computers and other network devices that are connected with the use of certain media by the rules that have been defined

Computer devices:

• Computer (in any device that connects with such a network (NIC, modem)
• printer
• Scanner

Network devices (to be discussed further)

• NIC
• modem
• hub
• switch
• router
• firewall

Media (to be discussed further)

• cable
• Non-cable (wireless)

Rules (to be discussed further)

• Protocol

benefits of Networking
Resource Sharing (sharing resources): sharing printer usage, CPU, memory, hard drive.
Communication: electronic mail, instant messaging, chat
Access to information: web browsing
Help maintain the information in order to remain reliable and up-to-date
As the system centralized or distributed data storage that allows multiple users mengaskses data from a variety of different sites and restrict access to data while being processed