How have computers changed since the 1930s?

They've changed starting from the material, to the how fast they work now. You can do virtual things on computers, you can cary them wherever you go as well. You have better comunication too. You have so many options on today's computers then computers from the 1930s.

workers should be given a fair share of the wealth their work creates

hope this

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.