There are many advantages in using a word processor for both secretary and manager. The secretary is freed from a lot of daily work, such as re-typing letters and storing papers. He or she can use this time to do other more interesting work for the boss. From a managers point of view, secretarial time is being made better use of and money can be saved by doing daily jobs automatically outside office hours. 　　But is it all good? If a lot of daily secretarial work can be done automatically, surely this will mean that fewer secretaries will be needed. Another worry is the increasing medical problems related to work with visual display units (显示器). The case of a slow loss of sight among people using word processors seems to have risen greatly. It is also feared that if a woman works at a VDU for long hours, the unborn child in her body might be killed. Safety screens to put over a VDU have been invented but few companies in England bother to buy them. 　　Whatever the arguments for and against word processor, they are a key feature (特征) of this revolution in office practice. small computers: ▲1._______ larger and expensive computers ▲2._________can use them ▲Small computers has been 3._________in the field of word processors , or WPS