Books for children are the best investment one can make. Computers can be costly distractions.
My mother taught grade school for years in Canada. Sesame Street, supposedly a great educational show, arrived in the mid seventies when cable came. It's an anecdotal statement but she attributes the arrival of Sesame Street with its short 2 to 3 minutes topic segments and then on to something else of negatively affecting childrens' attention span.
In my opinion computers are worst, especially as an entertainment source in the homes.