When we set homework we have to be mindful of the fact that some children dont have computers/internet at home, for example i will set a research homework, most of the kids try the excuse of ' i havent a computer at home' the school should provide some prevision for pupils without a computer at home, i.e computer availability at lunch times, many schools provide homework clubs where computers are available to pupils after hours. obviously the kids don't seem to understand that a computer isn't actually required to do research anyway, they could look in a book.
I know that my school uses some online maths resources which are given for homework but the pupils are often given time in form to do homework and they provide a maths club for pupils to go one lunch time a week when they can do their homework.
Personally i cant think of a homework that i have set (baring in mind that i havent been in the teaching game for long where a computer was essential for completion. infact its quite nice to get homework in thats hand written, you can usually tell its not a straight copy and paste (especially if its research) and some of the handwriting ive seen is fantastic and probably often seen!
Don't really see whether this is necessary for every poor home to have its simple an attempt to win votes. maybe if they spent the £300m on computers to go into the schools the old ones could be given out instead.