On January 1,2021, Nath-Langstrom Services, Inc., a computer software training firm, leased several computers under a two-year operating lease agreement from ComputerWorld Leasing, which routinely finances equipment for other firms at an annual interest rate of 4%. The contract calls for four rent payments of $10,000 each, payable semiannually on June 30 and December 31 each year. The computers were acquired by ComputerWorld at a cost of $90,000 and were expected to have a useful life of five years with no residual value. Both firms record amortization and depreciation semiannually.

Required: Prepare the appropriate entries for both (a) the lessee and (b) the lessor from the beginning of the lease through the end of 2021.