Write a short note on LAN? Also write down its advantages and disadvantages of LAN?

Area network is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus, or office building.

The advantages of local area network are:

• you can share resources
•you can share your software applications
• you can have easy and cheap communication
• you have centralized data
• you have data security
•you have Internet sharing

The disadvantages is a local area network are:

• high set up cost
• local area network administrators can see and check personal data files of each and every user
• Data security threats
• maintenance jobs
• covers limited areas

The air is going to come out because of the low pressure.

The answer is d.potassium