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operating system sem - 6

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MAIN FRAME SYSTEM:
The main frame  Computer system   were  the first  Computer   use to  Toggle many  Commercial  Scientific   applications  thee growth of the  main frame  system  from  simple  batch  were   the computer  runs  one  and only  one applications  Two   time  short  system Which allow   for  user interactive  with the Computer system .  

batch system:


operating system  




user program  area   early computers  where enormous  machine  run from  a Console  the  common  input  devices where    card  readers   and  pen drivers .

Common  output  devices  where line printers  tape drivers   and  card  bunches .
 the user  did not  interact  directly with  computer system. Rather  the user  prepared  a job  interact directly  which con of the   program  the data  and some  control   informations about the nature of the job    and submitted it to the  computer operator.   

the job was   normally in the form of punch cards   at some later  time  the output  appeared  the output  consisted   of the  result  of the  program  .As well as  a dump of the final memory  and  register  context  for debugging  To Speed up processing  operators . batch together  jobs   with similar  need sand can  then  through the  Computer  As a  group .

Does  the programmers would leave their program  with the  operator  The operator    would  sort  programs  into batches   with similar  Requirements  and  as the Computers became available   Would run each batch.


the output  from each  batch  would be sent  back to the  appropriate  programmer .



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