A centralized system is built around a single centralized server/master node that handles all data processing and stores data and user information that other users can access. From there, client nodes can connect to the master server and send data requests instead of executing them directly.
Most web services including YouTube, mobile app stores, or your online banking account are coordinated by a central network owner, which means that all data transactions within these networks require verification by a third-party agency.
Centralized Systems are the most common type of network on the Internet today. These networks rely on a central system owner connecting all other satellite users and devices meaning there is a single point of failure that can be deliberately exploited by malicious actors.
These are the Advantages & Disadvantages of a Centralized System
Advantages of a Centralized System
Simple, Rapid Deployment:
Because the chain of command is well-defined in a centralized system, authorization across networks is relatively easy and requires less interaction within different authorization levels.
Client nodes can also be easily added and removed from the network by creating or removing connections between client nodes and the master server. However, this does not increase the computing power of the network.
Given the top-down nature of a centralized system, it is easier to standardize interactions between master servers and client nodes. This results in a more consistent and simplified end-user experience.
Additionally, because of the relative ease of tracking and collecting data over the network, irrelevant or unusual activity can be purged and removed based on the priorities and needs of the network.
A centralized system is often the most cost-effective option for small systems and requires fewer resources to set up and maintain. Also, if system administrators need to patch or update the network, only the central server needs to be updated. This reduces the time and overhead required to keep the network up to date.
Disadvantages of a Centralized System
Higher Security Risk:
A single point of failure also increases the likelihood of disruption by a security breach or cybersecurity threat such as a DDOS attack, since there is only one target of the attack.
Additionally, there are always inherent privacy risks with centralized systems since there is only one central repository for user data. If a core server becomes corrupted or goes offline, its data may be permanently lost.
Increased Risk of Failure:
Since a centralized system has a single point of failure, if the primary server fails, the entire network is likely to go down. Therefore, client nodes cannot send, receive or process user requests themselves.
Additionally, server maintenance may involve temporarily shutting down the main server, which may result in service disruption and inconvenience/reliability from a user’s perspective.
A centralized system can have difficulty scaling beyond a certain point since the only option is to add more storage, bandwidth, or processing power to the central server.
Additionally, if the network experiences traffic spikes beyond what the network was designed for, an information bottleneck may occur as users far from the central server experience increased latency.
Centralized System in Blockchain
The Pros and Cons of Centralized Systems in Blockchain
Blockchain is a public ledger that currently supports cryptocurrencies such as Bitcoin. Since its creation, many have proposed using blockchain technology in other applications.
However, many have expressed concerns about the technology’s lack of transparency and security. In order to gain widespread adoption, developers must find a way to provide the benefits of blockchain without its drawbacks.
One of the primary benefits of using a public blockchain system is that it offers more features than private ones. For example, most public blockchain applications have multiple nodes and can process thousands of transactions per second.
By contrast, many private blockchain systems have minimal transaction processing capabilities and can only process a few transactions per second. Many individuals feel that a more feature-rich system is necessary for any real-world application of blockchain.
Centralized System of Government
The benefits of a centralized organization include clarity in decision-making, simplified execution of policies and plans, and control over the strategic direction of the organization.
Key disadvantages of centralized organizations can include limited opportunities for employees to provide feedback and a higher risk of inflexibility.
The systematic and continuous accumulation of power at a central point is centralization. Decentralization, on the other hand, is the systematic delegation of authority by an organization.
Centralization is ideal for small businesses, while decentralization is more suitable for large enterprises.