What are the Best Practice for Software Developer

Although it does take up time which could otherwise be spent on practising or learning new software technologies, some knowledge of the hardware side is likely to prove beneficial in the long run particularly if you deal direct with clients.

In my experience, clients always have some hardware issues and so, if you can talk sensibly about them or even solve them, that's a useful skill to have.

Even if you don't deal with clients, it still gives you an 'additional string to your bow' (who knows what the job market may be like in say 10 years time) and may occasionally give you insights into why software isn't behaving as it should.