Thank you @soultax09 after some additional research I learned that I can indeed deduct the full cost of the computer the first year it is put in service. It looks like I have two options--section 179 as you mention above *or* the De Minimus Safe Harbor rule as the cost of the computer is under $2,500. I can also do this with certain software purchases which is helpful.
TurboTax Home and Business hasn't finished shaping up the Depreciation and Amortization schedule for 2019 but once it's done it looks like I will be able to take care of it in that section using either rule.
