In the 1950s the SWAC computer had many kinds of songs. The audio played
thru a speaker that was coupled to various kinds of instruction (e.g. ADD).
There were sounds characteristic of programs that gave clues when a program
misbehaved.

When the 1401 came in we wrote songs for the printer.

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf
Of Warner Mach
Sent: Monday, November 13, 2006 12:00 PM
To: [email protected]
Subject: 1401 & Music

In the November issue of 'Wired' magazine (pg 92) there is a short note
titled, 
'Composer Plays the Big Blues' ... Tells of composer Johann Johannsson
from
Iceland, whose father worked for IBM on the 1401. His father performed
the popular
hack of getting music out of the machine by placing a radio in the
appropriate 
location to emit music according to the programming.
  .
So, based on recordings taken in 1971, when the machine was
decommissioned,
he composed a 'requiem' titled, 'IBM 1401, A User's Manual' ... I
ordered it from 
Amazon and got a kick out of it. In addition to sounds from the radio it
features the
voice "... of an unknown instructor from an IBM Data Processing System
maintenance
instruction tape".
  .
The movements are:
(1) IBM 1401 Processor Unit
(2) IBM 1403 Printer
(3) IBM 1402 Card Read-Punch
(4) IBM 729 II Magnetic Tape Unit
(5) The Sun's Gone Dim and the Sky's Turned Black

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