The 796M was one of Commodore's low cost calculators which were very common in the second half of the 1970s. The 796M was made in 1976 and is very similar to the 776M which we have already covered here. The principal difference is that the 796M is black not beige!
Apart from that there isn't much difference. The 796M has the same basic four arithmetic functions, plus percentages and memory. Whatever numbers you handle on it will be displayed in a red LED display. Unfortunately, despite the calculator turning on (when fitted with a battery) it can display numbers but cannot manipulate them due to some digital decay in the CPU i assume.
