You can test your copy of the distribution diskette, to make 
         sure the copy is accurate, by entering the command CHECK *.* 
         at the DOS prompt.  The output should look like this: 

CRCK ver 4.2B (MS DOS VERSION )
CTL-S pauses, CTL-C aborts

--> FILE:  READ    .ME          CRC = 62 31

--> FILE:  WHERE   .COM         CRC = 61 77

--> FILE:  LS      .EXE         CRC = 62 A9

--> FILE:  DR      .COM         CRC = DF 69

--> FILE:  CHARS   .BAS         CRC = C6 3D

--> FILE:  MEMORY  .BAS         CRC = 80 52

--> FILE:  ROMBIOS .BAS         CRC = 32 93

--> FILE:  ROMBASIC.BAS         CRC = 14 F0

--> FILE:  MENU    .BAS         CRC = 99 A2

--> FILE:  SCREEN  .BAS         CRC = 56 C4

--> FILE:  KEYSTAT .BAS         CRC = 8F A6

--> FILE:  PERCENT .BAS         CRC = A6 04

--> FILE:  SUPPORT .            CRC = 67 15

--> FILE:  CHECK   .COM         CRC = BD 22

--> FILE:  CHECK   .TXT         CRC = 00 00

 ---------------------> SUM OF CRCS = DE 13

DONE
         

         Note: the CRC for CHECK.TXT will be incorrect as will be the 
         total, because you cannot write a file's CRC to the file 
         without altering the CRC of the file.