. long question answers
1. What is meant by the term 'ports? Explain the different types of ports.2. In what ways are DVDs more useful than CDs?
3. What are the main functions of the CPU? Explain.
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Answers
Answer:
the answer to the first question is
A computer port is a connection point or interface between a computer and an external or internal device. Internal ports may connect such devices as hard drives and CD ROM or DVD drives; external ports may connect modems, printers, mice and other devices.
the second question
It is widely known that DVDs hold about 6 times more data than CDs but it does not mean that CDs are obsolete. The great thing is that both CD and DVD reading and writing devices have become more versatile, making it possible to use different discs in the same device.
the third question
The CPU performs basic arithmetic, logic, controlling, and input/output (I/O) operations specified by the instructions in the program. The computer industry used the term "central processing unit" as early as 1955.
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