The origin of the real-time (RT) operating system

theyears3Month -Microsoft's first official public earlyMS-DOSthe source code. Recalling the past,1980Computer Products Company of Seattle (Seattle Computer Products) A --year-old programmerTimpatersonIt took four months to write a floppy disk operating system (86-dos). 1981years7Microsoft acquired the entire copyright of the product at a cost of $50,000 and renamed itMS-DOS, and in1981years8Month ADay, officially releasedms-dos1.0and thepc-dos1.0.

1980Two university students in CanadaGordon Belland theDan Dodge,during the course of learning the operating system design, the design "real-time operating system (RTOS) "and started working on it, eventually making a micro-kernel of a real-time operating system. At the beginning of the period, they were targeting not floppy disks, butIntelof the8088CPU, starting point andDOSdifferent operating systems. These two little heads became the famous laterQNXthe founder of the real-time operating system.

in terms of time,DOSwith theQNXgeneration of the same age, and all the "little boy" out of the young. Development so far, the former becameWin Ten, the latter became a real-time operating system for American drones and Swiss solar aircraft, with different uses. Win Tenwith theQNXare irreplaceable operating systems, other operating systems are younger brothers, our "Domestic operating system" is not ranked "number".

In fact, qnx Span style= "font-family: Wenquanyi Zen Hei equal width positive black" > real-time operating system built on "microkernel", with linux with android cpu scheduling, process communication, interrupt redirection, and time system, etc. The other is a peripheral application service program, whereby any "trouble" on the outside of the system responds immediately (in real time).

Solar power 2 flying across the Pacific is a real adventure if the wing tilts the The aircraft is in danger of "flipping" out of control. with a 5 - degree tilt,theQNX Real-time operating system sends a signal reminding the pilot to watch the instrument and adjust the flight posture.

Description: Tomorrow is the "International Wuyi Labor Day", I wish you a happy holiday!

Shimen 4 Month -

The origin of the real-time (RT) operating system