First, fix the eligibility criteria, i.e., employees who have worked for 1, 2, or 3 years. As far as the price is concerned, sit with the finance/accounts team, determine the book value, and make a decision accordingly. Organize a meeting, conduct an auction, place all the computers in an open area, assign identification codes to each PC, allow employees to inspect the systems, and request them to submit their bids. Form a committee (ensuring the presence of the finance head/manager) and allocate the computers to the highest bidders before closing.
Regards, Kameswararao