Cloud computers
Types of cloud computer:
- IaaS
- PaaS
- SaaS
SERVICE MODELS:
Infrastructure as a
service(IaaS)
This is a method of basic cloud computers models. Provider
of a IaaS offer computers or physical or virtual machines. To develop
their applications, could users install
operating-system and the application software.
Platform as a service(PaaS)
In this method
name is indicated the computering. The latter has also been proposed by an architecture
aiming to facilitate real-time in cloud environments.
Software as a service(SaaS)
This model name
is indicates the business model using a SaaS , users are provided access to application software and databases. The pricing model for
SaaS applications is typically a monthly or yearly flat per user. So the price
is adjustable or scalable. If the users added or removed at any poont.
Characteristic
·
Agility
improves with user’s ability to re-provision technological infrastructure
resources.
·
Application
programing interface.
·
Cost
reductions claimed by cloud providers
·
Device
and location independence.
·
Maintenance
of cloud computing applications is easier
·
Multitenancy
enables sharing resources
·
Centralization
of infrastructure in locations with lower costs
·
Peak-load
capacity increases.
·
Utillisation
and efficiency improvement of systems.
·
Performance
is monitored
·
Productivity
can be increased.
·
Security
can improve due to centralizations of data.
