CONSOLIDATED BALANCE SHEETS Aspen Technology, Inc. and Subsidiaries Consolidated Balance Sheets June 30 2002 2003 (In thousands, except share data) ASSETS Current assets: Cash and cash equivalents $ 33,571 $ 51,567 Short-term investments 18,549 — Accounts receivable, net of allowance for doubtful accounts of $5,997 in 2002 and $3,692 in 2003  95,418 77,725 Unbilled services 30,569 15,279 Current portion of long-term installments receivable net of unamortized discount of $1,931 in 2002 and $2,033 in 2003 40,404 34,720 Deferred tax asset 2,929 2,929 Prepaid expenses and other current assets 18,699 11,581 Total current assets 240,139 193,801 Long-term installments receivable, net of unamortized discount of $12,990 in 2002 and $13,684 in 2003 68,318 73,377 Property and leasehold improvements, at cost: Building and improvements 2,241 1,663 Computer equipment 50,253 52,847 Purchased software 53,552 45,939 Furniture and fixtures 17,552 17,061 Leasehold improvements 10,078 10,506 133,676 128,016 Less—Accumulated depreciation and amortization 82,873 96,858 50,803 31,158 Computer software development costs, net of accumulated amortization of $20,804 in 2002 and $25,085 in 2003 13,810 17,728 Purchased intellectual property, net of accumulated amortization of $1,974 in 2002 and $400 in 2003 27,626 1,861 Other intangible assets, net of accumulated  amortization of $15,232 in 2002 and $20,354 in 2003 41,105 26,946 Goodwill 84,258 14,333 Deferred tax asset 15,576 13,831 Other assets 6,708 5,445 $548,343 $378,480 30