Computer and computer-readable storage medium for command...

Electrical computers and digital processing systems: virtual mac – Task management or control

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C718S102000

Reexamination Certificate

active

06948170

ABSTRACT:
In accordance with the present invention, there is provided a computer incorporating a multitasking operating system such as a UNIX-based OS, wherein recursively invokable function calling statements and flow control statements in a procedure-oriented high-level programming language are incorporated as shell external commands stored in a directory of a file system with an active path. With this arrangement, programming can be achieved simply by combining some of the external commands, so that highly sophisticated programming comparable to C programming can be achieved without the use of flow control statements incorporated in a shell. Since the flow control statements and the function calling statements are incorporated as the shell external commands, a loop and a conditional branch are executed by daughter processes individually generated. Even if forceful exit from the loop occurs, only the daughter process controlling the loop is forcefully terminated, but a parent process executing the program is still active so that the programmed process is subsequently continued.

REFERENCES:
patent: 5321828 (1994-06-01), Phillips et al.
patent: 5551030 (1996-08-01), Linden et al.
A Command Interpreter for Ada, Thomas J. Wheeler, Computer Reaserch Div., CENTACS, DRSEL-TCS-CR, CECOM Ft. Monmouth N. J. 07730, Jan. 1984 ACM SIGAda Letters, vol. III Issue 4.
On the Structure and Control of Commands, C.J. Stephenson, Stanford University, Jan. 1973, ACM SIGOPS Opoerating System Review, Proceedings of the forth ACM symposium on Operating System Principals, vol. 7, Issue 4.
A high-Level Programming and Command Language, Christopher W. Fraser, David R. Hanson, Department of Computer Science The University of Arizona, Tucson, Arizona 85721, Jan. 1983, Proceedings of the 1983 ACM SIGPLAN symposium on Programming Language . . .

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Computer and computer-readable storage medium for command... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Computer and computer-readable storage medium for command..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer and computer-readable storage medium for command... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3408685

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.