Disadvantages of Computer Networks
Cost of network
The cost of implementing the network including cabling and hardware can be pricey.
Security Concerns
One of the chief downsides of computer networks involves security issues. In a standalone computer, physical access is needed for any kind of security lapse. Conversely, if a computer is connected to a network, a hacker can get unauthorised access by using various tools. For large organisations, several network security software are crucial to prevent any security breaches like theft of confidential data.
When one shops online, there is a probability that payment details could get in the wrong hands. Moreover personal information such as name, phone number and home address may be accessed by anyone with hacking knowledge, making the internet unsafe.
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Virus and Malware
If even one computer on a network gets infected with a virus, there is a possibility for the other systems to get infected too. Viruses can spread on a network easily, because of the inter-connectivity of various devices. Besides, multiple systems with shared resources are the best propagating ground for viruses. Likewise, if malware unintentionally gets installed on the central server, all connected clients to the server in the network will inevitably get infected. Spam remains to be a setback on the internet.
There is also a risk of hacking, predominantly with wide area networks where security measures are needed to prevent such misuse, e.g. a firewall which adds to cost of network implementation.
Lack of Robustness
If the core file server of a computer network fails, the entire system may become useless. If there is a failure in the main connecting server or a bridging device in the network, the entire network will come to a halt. For larger networks, the central server must be a powerful computer, which habitually renders setting up and maintenance particularly costly.
Needs an Efficient Handler
Managing a big network is complex which requires training and generally a network manager needs to be hired. The technical competences and expertise needed to operate and oversee a computer network is substantially high. Correspondingly, network connection and configuration is also a tiresome task and the responsibility that comes with such a job is high.
Lack of Independence
As networks generally have a centralised server and dependent clients, the client users usually do not have any control whats oever. Centralised decision making can occasionally impede how a client user desires to use his computer.
Computer networks have had a strong effect on the way communication is done nowadays and have made it a lot more convenient. From the World Wide Web to a local office LAN, computers have become essential in daily communications and computer networks have become a standard in most businesses. Computer networks will become the best technology facility an organisation needs if they are designed and set up, bearing in mind its advantages and disadvantages.