<P> The portable micro computer the `` Portal '' of the French company R2E Micral CCMC officially appeared in September 1980 at the Sicob show in Paris . The Portal was a portable microcomputer designed and marketed by the studies and developments department of the French firm R2E Micral in 1980 at the request of the company CCMC specializing in payroll and accounting . It was based on an Intel 8085 processor , 8 - bit , clocked at 2 MHz . It was equipped with a central 64K byte Ram , a keyboard with 58 alpha numeric keys and 11 numeric keys ( separate blocks ) , a 32 - character screen , a floppy disk : capacity = 140 000 characters , of a thermal printer : speed = 28 characters / second , an asynchronous channel , a synchronous channel , a 220V power supply . Designed for an operating temperature of 15 ° C to 35 ° C , it weighed 12 kg and its dimensions were 45cm x 45cm x 15cm . It provided total mobility . Its operating system was Prologue . </P>
when was the worlds first laptop computer introduced in the market and by whom
The portable micro computer the `` Portal '' of the French company R2E Micral CCMC officially appeared in September 1980