Computer Communication and Networking Models
Computer Communication and Networking Models:
1) Decentralized Systems
2) Centralized Systems
3) Distributed Systems
4) Client/Server Model
5) Peer-to-peer Model
A) Decentralized Systems:
Ø
In
decentralized environment, user maintain their own
systems.
Ø There is no electronic exchange of resources or information among these separate systems.
Ø It provides user or departments with computing independence i.e. it moves control of system closer to end user.
Ø Thus departments do not have to conform to mandates of central group and can allocate resources and set priorities in a manner compatible with departmental needs.
Ø It results in data redundancy/duplication, inconsistency and can be expensive to implement in terms of increased costs of hardware, maintenance, support and operations since each department has its own system.
Ø It also promotes low productivity.
Ø In decentralized processing, there are different CPU connected on the network and each processor can do its job independent of each other. For example, in a Net cafe, all computers can perform their own tasks. This type of network is called decentralized network.
Ø Examples:
1) Printers connected to each computer in LAN
2) Computing needs of College’s Student Records and Accounting Departments
Centralized Systems | Distributed Systems | Client/Server Model | Peer-to-peer Model
Ø There is no electronic exchange of resources or information among these separate systems.
Ø It provides user or departments with computing independence i.e. it moves control of system closer to end user.
Ø Thus departments do not have to conform to mandates of central group and can allocate resources and set priorities in a manner compatible with departmental needs.
Ø It results in data redundancy/duplication, inconsistency and can be expensive to implement in terms of increased costs of hardware, maintenance, support and operations since each department has its own system.
Ø It also promotes low productivity.
Ø In decentralized processing, there are different CPU connected on the network and each processor can do its job independent of each other. For example, in a Net cafe, all computers can perform their own tasks. This type of network is called decentralized network.
Ø Examples:
1) Printers connected to each computer in LAN
2) Computing needs of College’s Student Records and Accounting Departments
Centralized Systems | Distributed Systems | Client/Server Model | Peer-to-peer Model
Comments
Post a Comment