Internet Technology
Definition of Network : A network is a collection of computers and devices connected together via communications devices and transmission media allowing computers to share resources .
Definition of Communication Device : Hardware components that enables a computer to send and receive data , instruction , information to and from one or more computers.
Definition of Transmission Media : The type of physical system used to carry a communication signal from one system to another .
Advantages of Network :
- Data sharing
- Hardware sharing
- Internet access sharing
- Connectivity and Communication
Disadvantages of Network :
- Undesirable sharing
- Data security concerns
- Security issues
- Expenses/cost
1) Peer-to-peer
Definition : A network model in which all computer can function as clients or server as needed , and there's no centralized control over network resources .
Advantages of peer-to-peer network :
- Less startup cost to set up the network architecture
- Easy to install and configure for the computers in the network
- When a peer fails it will not affect other peers so the network is reliable
- Decentralized
- Less security
- Every user is taking care its own machine
Definition : Network in which one powerful computer coordinates and supplies services to all nodes on a network
Advantages of Client-Server Network
- Centralized
- Scalability
- Better management files
- Accessibility
- Expense
- Maintenance
- Dependence
1) Star Network : All computers and other devices on the network connect to a central devices , thus forming a star .
2) Bus Network : Consists of a single central cable , to which all computers and other devices connect.
3) Ring Network : On a ring Network , a cable forms a closed loop with all computers and devices arranged along the ring .
No comments:
Post a Comment