Ravenskull
ACORNSOFT / SUPERIOR SOFTWARE
November 86 - January 87
| BBC | ELK |
| 3 | 3 |
| Dec 86 | Dec 86 |
Sources
(click here for more information on the data shown below)
BBC (Gallup)
| 10 | 4 WEEKS to c.86-11-18 | AcU #55 p131 Feb 87 | |
| 3 | 4 WEEKS to c.86-12-16 | AcU #56 p131 Mar 87 | |
| 6 | 4 WEEKS to c.86-11-18 | AcU #55 p131 Feb 87 | |
| 3 | 4 WEEKS to c.86-12-16 | AcU #56 p131 Mar 87 | |
CDS MICROSYSTEMS / BLUE RIBBON / SUPERIOR SOFTWARE
January 89 - March 90
| ELK |
| 3 |
| Feb 89 |
Sources
(click here for more information on the data shown below)
Electron (Gallup)
| 11 | MONTH to c.89-01-17 | EU p6 Apr 89 89-03-15 | |
| 3 | MONTH to c.89-02-14 | EU p6 May 89 89-04-15 | |
| 18 | MONTH to c.89-03-21 | EU p6 Jun 89 89-05-15 | |
| 13 | MONTH to c.89-06-20 | EU p6 Sep 89 89-08-15 | |
| 8 | MONTH to c.89-07-18 | EU p6 Oct 89 89-09-15 | |
| 18 | MONTH to c.90-02-13 | EU p9 May 90 90-04-15 | |