Peke's snark aside, yes a dedicated computer for trading and separate one for email, browsing, Pandora, Youtube etc. Two monitors on trading puter are plenty if trading one or two markets but stocks or multi futures may be better with more.
His wife, who was a lawyer left he and his small daughters and he wanted to earn a living from home so he could raise the girls. You can't practice ophthalmology from home but you can trade. This was years before he wrote the first book.