1. Data Communication & Networking DATA: Collection of fact and figure in Raw form is called DATA it can be numbers or digits, it can character or Alphabets it can be video and voice. COMUNICATION: Data transfer from one entity to another entity. NETWORKING: One entity connect to another entity who’s data and resources share to each other it’s mean network or they are networking. Design by Sir Masood.Com

2. Data Communication & Networking HISTORY OF DATA COMMUNICATION: Data communication history represents a blend of histories including. The telecommunication industry. The data communication in internet TELEGRAPH 1873 SAMUEL MORSE: Modern telecommunication industry began in 1837 with the invention of the telegraph by Samuel Morse. Telegraph 1876 Alexander Graham Bell. Design by Sir Masood.Com

3. Data Communication & Networking BY 1950’s: Telephone and telegraph compare had developed a network at communication facilities throughout the industries. BY 70’s: Invention to computer and networking DATA COMMUNICATION DEFINITION (MODIFIED): Data communication is the exchange of data (in the form of 0’s and 1’s) between the two devices (computer) via same form of the transmission medium. Design by Sir Masood.Com