ATARI 400/800 Computer Program Graph It, Model XC4109 (1980). Use with ATARI 400 or ATARI 800 Personal Computer Systems.
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Five graphics programs are on two cassettes and include: Bar Charts, Pie Graphs, Two-Dimensional X, Y Plots, Polar Plots, Three-Dimensional X, Y, Z Plots.
Both User Guide and Cassette Tapes are in EXCELLENT condition.