随着七十年代世界上超大规模集成电路的高速发展,微电脑相继问世。它的主要特点是:体积小,成本低,功能强,功耗小,稳定可靠,操作简便,易于推广应用。因此,它的发展十分迅速。据统计,自计算机问世至今三十几年来,在国外大约每隔5～8年速度提高十倍,可靠性提高十倍,体积缩小十倍,成本降低十倍。 With the rapid development of ultra-large-scale integrated circuits in the world in the 1970s, microcomputers have come out one after another. Its main features are: small size, low cost, strong features, low power consumption, stable and reliable, easy to operate, easy to promote and apply. Therefore, its development is very rapid. According to statistics, since the advent of computers in the past 30 years, speed has increased ten times in every five to eight years in foreign countries, reliability has increased tenfold, volume has decreased tenfold, and costs have decreased tenfold.