If this is the first time you're focusing on stomach exercises, you should gradually increase the intensity of the movements you do. Basically, you shouldn't be attempting any single-arm plank ...
The first thing to consider is what type of exercise you want to be doing at home; is it for strength training, cardio or stress relief? Your answer (or answers) will dictate which pieces you ...
You can find Windows on ARM devices in all kinds of form factors, including tablets, 2-in-1s, laptops, and soon even desktops (you can learn more at our Windows on ARM FAQ).