basic information about of computer networks

1. Introduction to Computer Networks Chapter 1 Chapter 1 1

12. Comparison of Networks Chapter 1 LAN CAN MAN WAN Connects computers and workstations in office or home. Connects two or more LANs within a campus. Interconnects networks in a town or a city. Connects geographically separated LANs. Covers a local area of 1 Km. Covers privately owned campus with an area of 5 to 10 Kms. Covers larger area than LAN but smaller area than WAN with an area of 2 to 100 Kms. Spans large geographical area more than 100 Kms. Data Transmission Rate – 10/100 Mbps Data Transmission Rate – Variable Data Transmission Rate - Variable Data Transmission Rate – 64 Kbps or 2 Mbps Uses IEEE 802 standard. ____ Uses IEEE 802 standard. Uses ITU standard. Low cost High cost High cost (Repetitive) High cost (Repetitive)

13. Case Study - I Chapter 1 MoneyMaker is a bank having its registered office at Delhi. It has branches at Mumbai, Chennai, Hyderabad and Bangalore. The operating departments in the bank are Finance, Insurance, Loan, IT, Marketing, Customer Service and HR. MoneyMaker bank uses LAN as their computer network for each department. All the branches of the bank from different cities are connected through WAN. The bank is expanding and decided to open its branches at different locations in the city.

14. Problem Chapter 1 Determine which type of network to be used within a city

15. Suggested Solution Chapter 1 Use LAN computer network for each department in the new branch. MAN can be used for connecting the different branches of the bank within the city

19. Open System Interconnection (OSI) Model - II Chapter 1