EXHIBIT 21 SUBSIDIARIES OF COMPUSA INC. 1. CompUSA Stores L.P., a Texas limited partnership. 2. Computer City, Inc., a Delaware corporation. 3. CompTeam Inc., a Delaware corporation. 4. CompUSA Management Company, a Delaware business trust. 5. CompUSA Holdings I Inc., a Delaware corporation. 6. CompUSA Holdings II Inc., a Delaware corporation. 7. CompUSA Holdings Company, a Delaware business trust. 8. PCs Compleat, Inc., a Delaware corporation.