History of science and technology in Japan at the Computer Technique Group, Japan, in 1967. The first electronic printer was the EP-101, invented by Japanese company Epson and released in 1968. The world's first inkjet printer was Casio's Typuter, released in 1971. Thermal transfer printing was invented by SATO corporation, a Japanese company. They produced the world's first thermal transfer label printer, SATO M-2311, in 1981. The concept of a single-chip microprocessor CPU (central processing unit) was conceived in a 1968 meeting in Japan between Sharp engineer Tadashi Sasaki and an unnamed female software engineering researcher from Nara Women's College. He discussed the concept at a brainstorming
Calculator stored program machine which could read and write magnetic cards and displayed results on its built-in printer. Memory, implemented by an acoustic delay line, could be partitioned between program steps, constants, and data registers. Programming allowed conditional testing and programs could also be overlaid by reading from magnetic cards. It is regarded as the first personal computer produced by a company (that is, a desktop electronic calculating machine programmable by non-specialists for personal use). The Olivetti Programma 101 won many industrial design awards. Another calculator introduced in 1965 was Bulgaria's ELKA 6521, developed by the Central Institute for Calculation Technologies