100 REM "Test the graphics"
110 A=640: B=480
200 T=MILLIS(100)
210 FOR I=1 TO 1000
220 X=RND(A)
230 Y=RND(B)
240 R=RND(40)
250 C=RND(16)
260 COLOR C
270 FCIRCLE X,Y,R
280 NEXT
290 COLOR 15
300 S=MILLIS(100)-T
310 PRINT "1000 Random circles drawn in", INT(S/10);".";INT(S%10);" seconds"