The Y2010 bug

[andrewducker]

Next time someone says that the Y2K bug was a load of rubbish, point them at this example of what happens when people don't test their software/hardware before rolling over a minor date change.

Comments

[andrewducker]

There are running apps that can be used to control things - these tend to be text based and look somewhat like this:


Or you write a job and then submit it to be processed.
http://en.wikipedia.org/wiki/Job_Control_Language

//IS198CPY JOB (IS198T30500),'COPY JOB',CLASS=L,MSGCLASS=X
//COPY01   EXEC PGM=IEBGENER
//SYSPRINT DD SYSOUT=*
//SYSUT1   DD DSN=OLDFILE,DISP=SHR
//SYSUT2   DD DSN=NEWFILE,
//            DISP=(NEW,CATLG,DELETE),
//            SPACE=(CYL,(40,5),RLSE),
//            DCB=(LRECL=115,BLKSIZE=1150)
//SYSIN    DD DUMMY

will copy OLDFILE to NEWFILE And yes, it is defining how much space to allocate there. In cylinders.

I am rather glad I don't do work in COBOL any more. :->

[momentsmusicaux.livejournal.com]

ARGH MY EYES!!!

I'd ask why the hell are people still using this old crap, but... *sigh*

[andrewducker]

Because the throughput you get on a mainframe is faster than on any other system. And they have ridiculously high uptimes. And it's still running code written in the 1970s. Some of which is written in Assembler.

You'll be glad to hear that the modern bits of the system are being written in DB2, Java and C# :->