There are many great advantages to using a manual juicer, the greatest is how cheap they are in comparison to the electrically operated machines. Due to not requiring an electrical output they can be used anywhere and can be taken when travelling somewhere. They are easier to clean as there are no wires to contend with. An excellent advantage to a manual juicer is that due to not using high powered speed settings like an electric machine the enzymes and nutrients in the fruits are preserved allowing the juice to maintain its vitamins and minerals.
noting advantages
cost and thats about it
With manual accounting, you don't have to worry about making mistakes.
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it is easy to carry every where. it is cheaper. it do not consume electricity.
manual data input is cheap
disadvantages in data manual processing
There are quite a number of advantages of a manual payroll system. This is not prone to technical hitches which affect electronic system and in most cases it has proved to be accurate.
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Manual systems tend to be more reliable because you can easily see when something goes wrong. With a manual system, you can fix the problem and continue working.
Manual accounting systems have several disadvantages. The most obvious are that manual systems are slow. And by being slow, the manual system does not operate in real time. Also, manual systems are more prone to error.