What Type of Computer Software is Necesarry for Learning a Foreign Language?

I tried a following experiment. I divided the subjects (the freshmen who have learned Russian for a year) into three groups. They were instructed to learn twelve Russian words (three times, three different groups) by heart. They were tested on three conditions of memorizing respectively: 1 writing the words on a piece of paper 2 using a computer software, writing the words by using a keyboard 3 using a computer software, writing the words by using a mouse. The effect was the greatest when they wrote the words on a piece of paper. But is writing on a piece of paper the best way? I think we can't say so. Computer softwares are usually more interesting than only writing words and the effect may be linked to the computer literacy of the subjects. But we have to make another experiment in this respect