Fill in the blanks with the correct verb. Reuse some words more than once.

are / been / do / has / have / is / were

Perhaps the single most remarkable invention of the century the computer. A computer essentially a machine that enables humans to complete tasks that may be time-consuming or very repetitive. This achieved by imitating human thought processes. In much the same way that humans think using pathways in their brains that conduct minute electrical currents, computers also use tiny electrical circuits that tell them what to . The difference that computers this at incredible speeds.

In this modern age, man grown to be heavily dependent on computers to carry out all kinds of jobs done manually before. In banking, for example, computers allow for millions of transactions to be carried out involving large sums of money, which would otherwise require thousands of bank tellers. Computers the job in a much shorter time and practically free of any errors. Computers responsible for air traffic control and the running of trains to ensure that travel made as smooth as possible. Nowadays, computers operate mechanical devices that produce goods we require for everyday living in quantities impossible to achieve if factories run by humans alone.

Perhaps the most incredible advancements made in the field of communications. All of us now familiar with the Internet. The internet a collection of computer systems and individual terminals linked worldwide through telephone lines and other channels. It offers a cheaper alternative to communicating with people within a country and internationally through computers. It also described as an immense pool of knowledge just waiting for applications. It given rise to a new means for countries to trade with each other through E-Commerce.

It must, however, be kept in mind that as helpful as computers , they not capable of independent thought and still require human input. In recent times scientists developed Artificial Intelligence in computers that may enable them to function independently of man in the future.

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