Question: when was the worlds first laptop computer introduced in the market and by whom?
Evidence: In 1981 the world's first laptop computer was introduced in the market by Epson. Hence, Option 2 is correct. The Epson was the first laptop computer. It was invented in July 1980 by Yukio Yokozawa, who worked for Suwa Seikosha, a branch of Japanese company Seiko (now Seiko Epson), receiving a patent for the invention.
Answer: September 1980
R2E Micral CCMC