What
is Computer Network?
- Security: It
provides limited interaction that a user can have with the entire system.
For example, a bank allows the users to access their own accounts through
an ATM without allowing them to access the bank's entire database.
- Faster problem solving: Multiple
computers can solve the problem faster than a single machine working
alone.
- Security through redundancy: Multiple
computers running the same program at the same time can provide the
security through redundancy. For example, if four computers run the same
program and any computer has a hardware error, then other computers can
override it.
What
is Computer Network?
A computer network is a set of devices
connected through links. A node can be computer, printer, or any other device
capable of sending or receiving the data. The links connecting the nodes are
known as communication channels.
Computer Network uses distributed processing
in which task is divided among several computers. Instead, a single computer
handles an entire task, each separate computer handles a subset.
Following are the advantages of Distributed
processing:
- Security: It
provides limited interaction that a user can have with the entire system.
For example, a bank allows the users to access their own accounts through
an ATM without allowing them to access the bank's entire database.
- Faster problem solving: Multiple
computers can solve the problem faster than a single machine working
alone.
- Security through redundancy: Multiple computers running the same program at the same time can provide the security through redundancy. For example, if four computers run the same program and any computer has a hardware error, then other computers can override it.
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