Just like wheelchairs, walkers, crutches or canes help people to improve their native mobility, computers can help people to improve their native communication and organizational skills. Just like a beautiful grand piano won't make you a better piano player, a computer won't make you a better writer. Only careful study by a motivated student under the care of a willing and motivated teacher can make a large difference. The next time your school is looking at deploying more computers or phasing out the old ones, take another look. Think about investing in the teachers instead.
People certainly can become addicted to computers and their use.
People can become addicted to anything they want. As long as it fulfills the purpose of drawing their attention away from what should be the most important thing in any person's life. Their personal relationship with God or their core essence. People can even get addicted to the motions associated with worshipping God, even though they don't have the foggiest idea where to find God. The Internet is enabling people to find more and more ways to lock their minds into the computer.