Advantages and Disadvantages

Advantages

•Lots of processes because mainframes support several dozen central processors (CPU chips) in one system.

•Super reliable because mainframe operating systems circuitry is designed to detect and correct errors.

•

Disadvantages

•Mainframes occupies lot of space and produce lot of heat.

•Cost of mainframe and its hardware is very high. 

CLIENT-SERVER NETWORK

What is a client-server network?

§An architecture in which the user's PC (the client) is the requesting machine and the server is the supplying machine, both are connected via a network such as the Internet.

§One or more computers act as a server, and the other computers on the network request services from the server.

Advantages of client-server network:

1.Computer can easily be added or replaced without purchasing any additional hardware or software.

§ It is because a client server is centralized, server can easily move files and applications from an old computer to a 

new one

2.Flexible to adapt and to change  new technologies because it has a centralized management (server).

Advantages of client-server network:

1.Computer can easily be added or replaced without purchasing any additional hardware or software.

§ It is because a client server is centralized, server can easily move files and applications from an old computer to a new one

2.Flexible to adapt and to change  new technologies because it has a centralized management (server).

DISTRIBUTED COMPUTING

§A type of computing which 


different 

components and object comprising 

an application can be located
 on different computers connected to
 a network.

§For example, a word processing 

application might consist of an 


editor 

component on one computer, a

 spell-

checker object on a second 

computer, and a thesaurus on a


 third computer.

CLOUD COMPUTING

• An Internet service that provides computing needs to computer 

users.

•  3 major components:

–Provider

–The Cloud (Internet)

–User

   In addition, there are three 

service 

models offered by most cloud

computing vendors:

1.  Software as a Service


 (SaaS)

2.  Platform as a Service


 (PaaS)

3.  Infrastructure as a Service 

(Iaas)

Advantages of Cloud Computing

–Reduced cost - users pay only for 

what
 

 they are using

–Easy maintenance - users don’t 

have 

to worry about the complexity 

 behind the scenes.

–Easy reallocation of resources

Remote Accessibility - business is not restricted to a particular location. You can access the services from anywhere. 

THAT ALL ......THANKS YOU...