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Computers are used (a)in many ways. For example, (b)a/x computer's memory may carry the names, addresses and flight numbers of air plane passengers. (c)A ticket agent can find (d)x almost instantly, by typing (e)a flight number, whether there is a seat available (f)in a particular plane. At flight time, the computer can make a list of all the passengers (g)of the plane. Computers can also solve many problems. (h)x many bits of information can be compared (i)to/with one another. Mathematical calculations can then be performed (j)through/with them.
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