There are various types of machines used to carry out day to day activities. A rowing machine is an example of these machines under this discussion. It is a muscle driven machine and thus enhances flexibility of body muscles. Another important thing about the machine is the engine which operates big bodies that require alot of energy to move. It controls the functioning of of the big bodies as far as their movement is concerned. A vehicle cannot operate without an engine which use petrol to fire it up. These machines require handling with a lot of care from the users to prevent breakdown. A computer is also another essential machine that is used to store data for a long time. It requires electricity power to operate and perform all its functions. Some of the advantages of a computer are faster data processing, high storage capacity, its programming power and also its effectiveness such that it processes error free results.
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