What's the difference between block printing and movable type printing? Why is movable type printing "economical and time-saving"? What are the new developments in the printing industry today? __

(1) movable type printing uses clay as raw material, and a word can be typeset repeatedly; However, block printing is based on wood, and a word can only be used in one place, and cannot be typeset repeatedly. So it will inevitably consume a lot of wood and waste resources. Therefore, movable type printing is "economical and time-saving" and has more environmental protection significance.

(2) Since the middle and late 1980s, the computer processing of Chinese characters has become a reality. The printing and publishing industry has begun an era of "farewell to paper and pen, farewell to lead and fire, and moving towards light and electricity". Chinese characters are input by keyboard, typeset by computer and printed by printer, which can be printed in black and white or in color. Copiers and mimeographs controlled by computer programs can print in large quantities with high quality. In addition, scanners and digital cameras can also be connected with computers to realize convenient and fast graphic printing. Analysis: This topic is entitled Analysis and Comparison, which focuses on the students' ability to analyze and compare problems. To compare problems, we must first find out the comparison points, which can generally be compared from the aspects of background, content, results and functions. This problem mainly compares the materials and word efficiency carried by the two printing methods.