T/Maker
              < T 
 
            
          | T/Maker | |
|---|---|
| Developer(s) | Peter Roizen | 
| Initial release | 1979 | 
| Operating system | CP/M, TRSDOS, MS-DOS | 
| Type | Spreadsheet | 
T/Maker (Table Maker) was one of the first spreadsheet programs designed for the personal computer user and released by Peter Roizen in 1979. The application ran on CP/M, TRSDOS, and later on MS-DOS computers. T/Maker was originally distributed by Lifeboat Associates of New York.
T/Maker took a different approach to most other spreadsheets: instead of embedding formulas in each cell, formulas were defined on a per-row and per-column basis in the margins.
Although T/Maker was released six months after VisiCalc, it was perhaps the first application to provide an 'office' suite approach to data. Tables could be used in databases or spreadsheets and were accessible in 'word' type documents.