The text read off it
[02.07.12]
3. Example 3
a) Statement of problem
i Records composed of 85 characters of significant information have been put on tape using standard card-to-tape equipment. The information for each record is contained on two cards:
- Card 1 - 72 characters
- Card 2 - 13 characters
ii The records of the file are all of the same fixed length and the same record.name.
iii Block size is specified as 12 words (BLOCKSIZE12).
iv The records span block boundaries since they must exist in two blocks (SPANS option exercised).
v Records always start at the beginning of a new block (BEGIN option exercised).
b) Illustration of Tape
A portion of the tape might be:
Illustration of tape for Example 3 (page 63).
c) Explanation of Problem
In this file hardware characteristics force a somewhat artificial record and block structure. The two parts of the 85 character records do not appear on tape contiguously, being separated by a record gap and by extraneous information. Additionally, useless information appears on tape between consecutive records.
The block size of 12 directs the system to bring only 12 words from