Index of Reports of Demonstration (ZV) Programmes in David Leigh's Binder
                Last updated: 12 July 2024: David Green
			 
Each report contains (description/operating instructions/flow charts/code)
 unless noted otherwise.

ZV01N   (No. 85)    NS t 1058
Demonstrator (Narrator) (and ZV01N/1).
  A Demonstration system in which the DEUCE 
  (1) presents any required story, the words of which appear to move
      continuously up the face of the monitor tube, and
  (2) performs demonstration programs at required intervals throughout 
      the narration.

ZV02    (No.  6)    K/AA t 1464  pp3-9
Easter Day.  On the Web as a pdf file (808 Kb).
  The program reads a year from the I.D. and displays in the scope the date
  of Easter Sunday in that year.

ZV03    (No.  7)    K/AA t 1464  pp10-16
Million Factors Slow.  On the Web as a pdf file (778 Kb).
  This program reads a number less than a million from the I.D.; computes 
  its smallest factor, if any; and displays this, or the word 'Prime', in the
  scope.

ZV03/1  (No.  8)    K/AA t 1464  pp10-16
Million Factors Fast.    On the Web as a pdf file (778 Kb).
  ZV03/1 is considerably faster than ZV03 and should be used in preference.
  

ZV03N   (No. 90)    K/AA t 1464  pp10-16
Million Factors Slow, use with Narrator. On the Web as a pdf file (778 Kb).
  This is a standard brick to run the demonstration under the control of
  ZV01.

ZV03/2  (No.237)    K/AA t 1464  pp17-25
Billion Factors.
  This program reads a number less than a billion (1012) from the I.D.;
  computes its smallest factor, if any; and displays this, or the word 'Prime',
  in the scope.

ZV03/3  (No.384)    K/AA t 1464  pp17-25
Billion Factors (without 17-0). 
  ZV03/3 supersedes ZV03/2 which will not work on machines fitted with A.I.M.

ZV04    (No.  9)    K/AA t 1464  pp26-33
Reaction Times. 
  The program measures the time interval between a signal telling the 
  participant to depress a key and this action.

ZV04N   (No. 91)    K/AA t 1464  pp26-33
Reaction Times (for use with Narrator).

ZV04T/1 (No.669)    K/AA t 1464  pp34-39
Reaction Times (Two-Way).
  The program measures the time interval between a signal telling the
  participant to move a key either up or down and this action; and displays the
  time on the scope in milliseconds. This program is preferable to ZV04 because
  the executive order, being variable, is less likely to be anticipated: the 
  order UP or DOWN is decided by a random number generator.

ZV05    (No. 10)    K/AA t 1464  pp40-49
Down You Go.
  This program contains a series of phrases that the participant has to 
  guess. Initially the display is a framework consisting of three digits
  underlining each letter in the phrase. The player chooses one letter at a
  time and this is added to the display wherever it occurs. The object of the
  game is to guess the phrase with as few letter choices as possible.

ZV06    (No.  5)
Calendar.
  This is mentioned in the summary of ZV06T/1. No other information is 
  available.

ZV06T/1 (No.670)    K/AA t 1464  pp50-56
Calendar.    On the Web as a pdf file (977 Kb).
  The program reads a date (A.D. only) set on the I.D., calculates the day 
  of the week on which it falls and displays the answer in the scope.
  Allowance is made for the change from the Julian to the Gregorian Calendar
  on 3rd-13th September, 1752.
  
ZV07/N  (No. 92)   16(?) Simultaneous Equations - Use with Narrator.
  Mentioned in DEUCE Programme News #18 but absent from the binder.

ZV08    (No.212)    NS t 1119.
Nim.    On the Web as a pdf file (1.7 Mb).
  This programme uses the I.D. and O.P.S. facility as a medium for playing
  the game of NIM.

ZV09     (No.255)   K/AA t 1457.
Display Simple Sum.
  The program solves a simple arithmetic problem: ('a' function 'b' = ?) 
  that is set on the I.D. and displays the sum and its result in the scope.

ZV10    (No.350)    K/AA t 1464  pp57-58 (no flow chart or code)
Noughts and Crosses.
  The program enables the operator to compete with DEUCE at the game of 
  'Noughts and Crosses'.

ZV11    (No.671)    K/AA t 1464  pp59-63    Saved as zv11.pdf.
Willie the Worm.    
  On the Web as a pdf file (562 Kb).
  This program displays the random meanderings over the scope of a pattern 
  of digits in the shape of a worm.

ZV12    (No.672)    K/AA t 1464  pp64-66
Lulu.
  This program displays on the scope the motions of a dancing girl.