EXHIBIT 11.1 
                                      
                    STB SYSTEMS, INC. AND SUBSIDIARIES 
       COMPUTATION OF EARNINGS PER COMMON AND COMMON EQUIVALENT SHARE

              FOR THE YEARS ENDED OCTOBER 31, 1996 AND 1995   
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            (IN THOUSANDS EXCEPT SHARE AND PER SHARE AMOUNTS) 


                                                       1996        1995    
                                                    ---------------------- 
                                                                 PRO FORMA

Net income (loss)                                   $   6,077    $   1,998 

Pro forma adjustment to general and 
  administrative expenses                                              220 
Pro forma adjustment to reflect interest on 
  Founding Shareholder Notes                                           (52)
Pro forma adjustment to reflect federal 
  income taxes                                                        (483)
                                                    ---------------------- 
Net income (loss), as adjusted                      $   6,077    $   1,683 
                                                    ---------------------- 
                                                    ---------------------- 


PRIMARY:
Weighted average number of shares outstanding       4,502,692    3,672,161 
Additional weighted average shares to reflect 
  pro forma adjustment for distribution of 
  S Corp earnings                                                   74,234 

Additional weighted average shares from 
  assumed exercise of dilutive stock options, 
  net of shares assumed to be repurchased with 
  exercise proceeds                                    44,064            - 

                                                    ---------------------- 
Net income (loss) per share                         $    1.34    $    0.45 
                                                    ---------------------- 
                                                    ---------------------- 

FULLY DILUTIVE 
Weighted average number of shares outstanding       4,502,692    3,672,161 

Additional weighted average shares to reflect 
  pro forma adjustment for distribution of 
  S Corp earnings                                                   74,234 

Additional weighted average shares from assumed 
  exercise of dilutive stock options, net of 
  shares assumed to be repurchased with 
  exercise proceeds                                   202,921            - 

                                                    ---------------------- 
Net income (loss) per share                         $    1.29    $    0.45 
                                                    ---------------------- 
                                                    ----------------------