Data communications and networks

A presentation on

Protocol

Computer network is a system of

interconnected computers that

enables the computers to

communicate with each other and

share there resources, data and

applications.

It refers to the physical media used to connect the computers together.

Types of transmission media:-A.) Guided media…….

1.) Cables2.) Optical Fiber

3.) Microwave4.) Satellite

B.) Unguided media……….1.) Infrared2.) Laser3.) Bluetooth

Implement proper security policy for your

organization.

Use proper file access permissions when

sharing files on the internet.

Look at the following set of permissions:-

MyThesis.exe r w x r w - r - -

(First set – owner’s (Second set – group’s (Third set – other’spermissions) permissions) permissions)

Positively this is not the actual end because, knowledge is

the only one which has no boundaries…. Thank you.

We hope you have been influenced by our simple presentation.