	SUBROUTINE FORBAC
	COMMON /DPYBUF/ IDBUF(2000)
C
C
C
	CALL INIT
	CALL APNT(0.,766.,0,-5)
	CALL TEXT('RT-11 is a high-performance, easy-to-use',
	+' operating system  designed  for',1,
	+'the  single  user  environment.   it  pr',
	+'ovides  fast,  efficient program',1,
	+'development and/or real-time  applicatio',
	+'ns  facilities  for  any  PDP-11',1,
	+'processor  with  at  least  8K  words  o',
	+'f memory (at least 16K words for',1,
	+'foreground/background operation).',4,
	+'The  RT-11  Operating  System  actually ',
	+' provides  two  monitors  -  the',1,
	+'single-job monitor and the foreground/ba',
	+'ckground (F/B) monitor.  The F/B',1,
	+'monitor allows two jobs to execute concu',
	+'rrently - a  foreground  program',1,
	+'and a background program.  The real-time',
	+' function is accomplished in the',1,
	+'foreground, which has priority for syste',
	+'m resources.  Functions which do',1,
	+'not have critical response time requirem',
	+'ents (e.g., program development)',1,
	+'are  accomplished  in  the  background, ',
	+' which  operates  whenever   the',1,
	+'foreground  is  not  busy.  within their',
	+' priorities, both foreground and',1,
	+'background  are  complete  RT-11  system',
	+'s  with  access  to  all  system',1,
	+'functions.    Although   they   operate ',
	+' independantly,  foreground  and',1,
	+'background can communicate through syste',
	+'m  message  facilities  or  disk',1,
	+'files.',4,
	+'If F/B operation  is  not  required,  th',
	+'e  single-job  monitor  -  which',1,
	+'requires  less  memory  and  lower  over',
	+'head  - can be utilized.  Should',1,
	+'requirements change, upgrading is easy  ',
	+'since  programs  are  completely',1,
	+'interchangeable between the single-job a',
	+'nd F/B monitors.',1)
	CALL SLEEP(0,0,30,0)
	RETURN
	END

