(i) High technology is the latest generation of manufacturing activities. It is the best understood as the application of intensive research and development efforts leading to the manufacture of products of an advanced scientific and engineering character. (ii) Professional workers make up a large share of the total work force. Highly skilled specialists greatly outnumber the actual production workers. (iii) Robotics on the assembly line, computer-aided design and manufacturing, electronic controls of smelting and refining processes, the constant development of new chemical and pharmaceutical products are main examples. (iv) They are neaty spaced, low, modem, dispersed, office lab building rather than massive assembly stmcture. (v) High-tech industries which are concentrated regionally, self-sustained and highly specialised are called technopolies. Manufacturing contributes significantly to the world economy.