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             Appendix A.

This appendix contains a list explainig some of the tecnical terms.
They are arranged in order of appearance in this report.

JANOS is the abbreviation of Jurjen and Niels Operating System.
INTERRUPT is a way to force the CPU to service the hardware.
POLLING is going around in a loop asking every device if the processor
        can do something for it. Very timeconsuming.
ADDRESSBUS A number of lines in the computer used to address memory.
SEGMENT any 4Kb piece of memory wich has a startingaddress of the form
        4096xN where N is the segmentnumber.
PIPELINE several tasks wich form a chain are called a pipeline.
         The output of the first task is the input of the second one
	 and so on.
FIFO abreviation of First In First Out. It is a buffer in wich the
     data wich was written into it first comes out first as opposed
     to FILO's (First In Last Out)
SYSTEMCALL A subroutine wich is provided by the system. It performs
            certain tasks wich the task itself cannot do.
ROOT The root directory. If you see the directorysystem as a tree
     this directory forms the roots of the tree.

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