Compucolor.org – Virtual Media

Listing of file='INVDOC.SRC;09' on disk='vmedia/inventory-sector.ccvf'

PAGE NINE					17JUN80





X EXIT:
	THIS IS THE ONLY WAY TO SAFELY LEAVE THE INVENTORY
	SYSTEM. IT CLOSES ALL FILES, AND PROMPTS THE USER
	THAT THE SYSTEM IS READY.

NOTE-	TO LEAVE THE SYSTEM ANY OTHER WAY MAY ALLOW DATA
	TO BE LOST FOR RECENT ENTRIES.

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IMPORTANT NOTES-
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RECORD-	IS THE WHOLE ENTRY FOR A PARTICULAR ITEM, IT IS
	GIVEN A SEQUENCE NUMBER BY THE COMPUTER, THIS IS THE

RECORD NUMBER


FIELD-	EACH RECORD HAS SEVERAL FIELDS, THESE CONTAIN SPECIFIC
	INFORMATION. EG DESCRIPTION  OR  SUPPLIER.

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THE RECORD NUMBERS ARE FOR USE DURING EACH SESSION ONLY.
	THESE NUMBERS ARE PRIMARILY FOR THE COMPUTER'S USE.

	AFTER EACH DELETION, THE RECORD NUMBER FOR THE
	LAST ITEM IN THE FILE WILL BE CHANGED.
	WHEN A RECORD IS DELETED, THAT RECORD IS REPLACED BY
	THE VERY LAST ITEM STORED IN THE FILE, HENCE
	THE FILE GETS SHORTER BY ONE, BUT THE IMPORTANT POINT
	IS THAT THE RECORD PREVIOUSLY WITH THE LAST REC #
	NOW IS GIVEN THE RECORD NUMBER OF THE DELETED RECORD.

EXAMPLE
	REC 1   PART 1  SUPPL 1
	REC 2   PART 2  SUPPL 2
	REC 3   PART 3  SUPPL 3
	REC 4   PART 4  SUPPL 4

IF RECORD NUMBER 2 WAS DELETED, THE FOLLOWING WOULD RESULT

	REC 1   PART 1  SUPPL 1
	REC 2   PART 4  SUPPL 4
	REC 3   PART 3  SUPPL 3
	REC 4 .. NON EXISTENT ..