Editing Versatile Real-Time Executive (section)

==History==
The VRTX [[operating system]] began as a product of Hunter & Ready, a company founded by [[MontaVista|James Ready]] and Colin Hunter in 1980 which later became [[Ready Systems]]. This firm later merged with Microtec Research in 1993, and went public in 1994. This firm was then acquired by [[Mentor Graphics]] in 1995<ref>{{cite news |url=http://www.CBRonline/news/mentor_graphics_to_add_real_time_arm_via_130m_microtec_acquisition |title=Mentor Graphics to add real time ARM via $130m Microtec acquisition |work=Computer Business Review |date=October 11, 1995}}</ref> and VRTX became a Mentor product.

The VRTX operating system was released in September 1981.<ref name="ready">{{cite journal
| last1      = Ready
| first1     = James
| date       = 1986-08-31
| title      = VRTX: A Real-Time Operating System for Embedded Microprocessor Applications
| url        = https://ieeexplore.ieee.org/document/4089679
| journal    = IEEE Micro
| volume     = 6
| issue      = 4
| pages      = 10
| doi        = 10.1109/MM.1986.304774
| s2cid = 10740518
| access-date = 2022-07-27
| url-access= subscription
}}</ref>

Since the 1980s, the chief rival to VRTX has been [[VxWorks]], a [[Wind River Systems]] product. VxWorks had its start in the mid 1980s as [[compiler]] and [[assembly language]] tools to supplement VRTX, named VRTX works, or VxWorks. Later, Wind River created their own real-time kernel offering similar to VRTX.