I accidentally added a private computer as an itemized deduction. I need to remove it but am unable to find out how to do that. Please and assistance is appreciated.

Yes.  This will be under itemized deductions in a category you chose. The following steps should take you to the computer where you can delete it.

Open your TurboTax return.

1. Select Tax Home >  Select Deductions & Credits (pick up where you left off or review)
2. Look at each category or select the one where you entered the computer > 
3. Once located select the trash can to delete it