In world of today technology has become very advance. We can say, this is Hight tech time. In this technological advanced time computers has great importance. Computers of today are more powerful more compact and portable than past computer. We wrap up portable computers from past 30 year, to show you who portable computer come to its present state.

The year was 1981 and a device, that was to herald a generation of ubiquitous mobile computing devices, was launched. The Osborne 1 was released in April 1981 by the Osborne Computer Corporation, and is considered as the first commercially successful portable microcomputer.



The computer weighed 10.7 kg and was priced at $1795. It ran on the CP/M 2.2 operating system. The Osborne 1 had a 13-centimetre (5-inch) display.


The Osborne 1 sold over 11,000 units in the first eight months and was discontinued in 1983 when its successor Executive model OCC-2 was launched. The Osborne Computer Corporation later filed for bankruptcy in September 1983.



The precursor to the Osborne 1 was the 1976 Xerox NoteTaker prototype, but it did not enter commercial production.



In 1982 Kaypro Corporation launched the Kaycomp I, which was only a demonstration model for prospective buyers. Kaypro released the Kaypro II, soon after a competitor to the Osborne 1. The company filed for bankruptcy in 1991.



The Compaq portable was announced in November 1982 and was the first IBM PC compatible portable computer.



The first full-colour portable computer, the Commodore SX-64, was launched in January 1984.



Tech giant Apple's first venture in the world of portable computing was in April 1984 when it launched the Apple IIc. The 'c' in the name stood for 'compact.'



Portable computers found widespeaad acceptance in the form of laptop or notebook computers. But some definitions describe laptops as different from portable computers and put them into a separate category.