From: arne@vajhoej.dk   
      
   On 9/7/2025 7:31 AM, hb0815 wrote:   
   > On 9/7/25 04:02, Arne Vajhøj wrote:   
   >> ...   
   >> $ typ var.txt   
   >> A   
   >> BB   
   >> CCC   
   >> $ r nonrms   
   >>   01 00 41 00 02 00 42 42 03 00 43 43 43 00 00 00   
   >>   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   
   >>   ...   
   >   
   > There are disk blocks, files and application data.   
   >   
   > nonrms prints a disk block.   
   >   
   > The file contents ends at FFB in EBK.   
   >   
   > The TYPE application interprets the file contents and prints it.   
      
   Yes.   
      
   But FFB and EBK are in the record attributes together   
   with record format etc..   
      
    From a QIO perspective a file consist of N allocated   
   blocks where N is a multipla of allocation size that   
   can be read and write.   
      
   It is also able to read when access and write when   
   deaccess record attributes, but QIO does not use those   
   itself.   
      
   RMS use record attributes. RFM to know how to interpret   
   records. And FFB and EBK to know where the logical EOF is.   
      
   Point being that dropping RMS and data used by   
   RMS does not provide a useful result.   
      
   It is all a little bit of polemic of course, because   
   obviously I know that Lawrence wanted to have QIO   
   use the record attributed, ignore some parts (RFM)   
   and use other parts (FFB and EBK) to emulate RMS.   
      
   Arne   
      
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