    |
| Marc M. Adkins |
Hardware
| Apple /// | 1 year | 4 months | |||
| June, 1982 - September, 1983 | 1 year | 4 months | |||
| Apple II | 1 year | 4 months | |||
| June, 1982 - September, 1983 | 1 year | 4 months | |||
| Symbolics 3670 | 1 year | 2 months | |||
| October, 1985 - April, 1986 | 7 months | ||||
| April, 1985 - October, 1985 | 7 months | ||||
| Xerox 1108 (Dandelion) | 1 year | ||||
| April, 1984 - March, 1985 | 1 year | ||||
| Xerox 1186 (Dove) | 3 years | ||||
| December, 1988 - March, 1989 | 4 months | ||||
| September, 1986 - December, 1988 | 2 years | 4 months | |||
| May, 1986 - August, 1986 | 4 months | ||||
