Teach Me Too

http://encyclopedia2.thefreedictionary.com/Digital+Computer

Internet and E-mail Introduction to Communication •        Some years ago, information was sent via messengers, using drums, smoke, screaming, ringing bells etc. •        Today more efficient methods of communication have come up such as through electronic and print media, using landline and cellular phones, Internet etc. •        These efficient methods of communication have been enhanced by networking computers in different areas of the world. Computer Network •        Definition : A computer network refers to a set of computers connected to one another using a modem and other communication links for the purpose of sharing resources which include hardware, software, data and information. •        The network operating system/network software contains instructions that enable the hardware to work as a network. •        Computer networks can be classified into different categories. E.g. according to geographical coverage, ownership etc. Classification of compute