What is Centralized Computing
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Today, computers have
become much more popular in business due to a reduction in their size and their
cost. People started purchasing computers for departmental use which led to
their expansion across their business.
The Growth of Centralized Computing
Initially, there were
some geographically dispersed systems that were used as independent computers.
Those computers could not interact or communicate with each other. Thus, they
were also called “Decentralized systems”. The management and control of any
system purchased was the responsibility of the Department itself.
Through the years, in
order to communicate and interact with each other, these independent computer
systems were connected using networking technology. Today, we see this type of
geographically dispersed configuration which is also known as “Centralized
computing”. For instance, since there is a similarity between independent
computers communicating, sometimes, the independent programs running on the same
server communicate with each other which is characterized as centralized computing.
Moreover, centralized
computing can also be defined as several independent computers in multiple
locations whose programs can communicate with each other, over a network using
text or other forms of interaction.
What is Centralized Computing?
“Centralized Computing”
refers to a model of computing or a little number of prevailing servers
present at a common position that fulfills the requirements of computing of a
huge amount of end-users. Earlier, centralized computing was the only
computing system since typically there was only one computer in business. In
order to get their work done, all the users had to come to the one and only
central system.
Ultimately, terminals
with no local processing capability were directly connected to the computers to
allow users to connect with the central computer without materially going to
the machine for service.
Generally, a single
computer system is required for a centralized system, and interaction with
other computer systems is unavailable.
- Computer Systems for General Purposes: Ranging
from a single to a couple of CPUs make up the core of this system.
Attached through a common bus are a number of device controllers. These
provide access to shared memory.
- Single-user system: It usually has a single CPU
unit with one and sometimes two hard disks with the OS Supporting a single
user.
- Multi-User Computing System: It has multiple CPUs which facilitates concurrency control and crash recovery.
Characteristics Features of The Centralized
Computing System
A centralized computing
system is one where numerous dispersed sites have a sluggish connection
available to a corporate data center. Individual domain controllers, global
catalog servers, and exchange servers are included in different branches. When
the networks are unable to handle traffic to the data center for services, then
the centralized computing system is adopted. Therefore, the operating system
and messaging servers will be placed locally.
In case if the user’s
availability and experience requirement cannot be effectively completed through
a data center connection or corporate hub, then you may have no alternative
except placing servers in the remote sites.
The Characteristics of
The Exchange Computing Office Deployment Include:
- The centralized system consists of a large number of locations, each comprising of a domain controller, an exchange server,
and any global catalog server.
- Either they work or not, there is a single point of
failure and control too.
- The computing system office locations generally contain
a less or varying number of users.
- The connectivity is generally structured as a data
center or central hub.
- The new connections between the computing system’s office
locations and the data center are normally of low capacity, short delay,
or uncertainty.
- The components are shared by all users at all times.
- All means and resources are obtainable.
- The same programming language and compiler are used for
all parts of the construction.
Advantages and Disadvantages of Centralized
Computing
Centralized computing is
the processing in which the centrally located computer system processes the
data. In order to gain fast access to this process, a powerful system is required.
All the data gets stored in the centralized data storage. The protection and
authorized access is the responsibility of an administrator.
Benefits of The
Centralized Computing Processing:
- Centralized computing processing reduces the
expenditure as it does not point up on additional machines and hardware.
- Effective data security can be obtained through
centralized computing processing.
- The data available on the individual information system
is dependent on added information systems.
Drawbacks of Centralized
Computing Processing:
- Central information system demands large data storage.
- Local accountability will get reduced by centralized
computing processing.
- Ability to respond is reduced to the information
request timely.
- Requires a high cost in transmitting transactions.
Examples for Centralized Computing System
- Telephony – Microsoft’s Skype
- Content distribution – Akmai NetSession
- Content distribution – Bit Torrent
- Key-value store – Amazon Dynamo
- Volunteer computing – SETI@home/BONIC
Furthermore, the world
is yet to see the national and international company fully running its
operations on a much better qualified decentralized ledger technology.
At this phase, modern
centralized systems incorporated by all existing organizations have strengths
because hackers had time to understand how centralized systems work and hack.
However, it does not mean that vulnerability to attacks is an inherent
weakness of any centralized computing system.
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