Much unfriendly feeling towards computers has based on the fear of widespread unemployment resulting from their introduction. Computers are often used as part of automated production systems required a least possible number of operators, causing the loss 【M1】______ of many jobs.This has been happened, for example, in many steelworks. 【M2】______ On the other hand, computers does create jobs. They are more skilled and better 【M3】______ paid, though less in number than those they replaced. Many 【M4】______ activities can not continue in their present form. without computers, no matter how 【M5】______ many people are employed. Examples is the check clearing( 票据交换) 【M6】______ system of major banks and the weather forecasting system. When a firm introduces computers, few people are usually employed in key posts (such as jobs 【M7】______ of operation managers)while other staff is retrained as operators, programmers, data 【M8】______ preparation staff. After the new system have settled down, people in non-computer 【M9】______ jobs are not always replaced. When they leave, resulting to a decrease in the number of employees. 【M10】______ This decrease is sometimes balanced by a substantial increase in the activity of the firm, resulting from the introduction of computers. 【M1】