Answer: IOI

AnswerCrossword Clue
IOIFirst year of the second century
IOIIntroductory course
IOIBasic college course
IOIFireWire equipment brand
IOIBinary five
IOICI
IOINumber of Disney Dalmatians
IOIFever reading
IOIDalmatian number
IOI"... Dalmatians," Disney film
IOI"... Dalmatians"
IOIStart of the second century
IOINumber of Disney Dalmations
IOIFour times 25.25
IOI".. Dalmatians"
IOI"-- Dalmatians"
IOIIntroductory
IOI.. Dalmatians
IOIIntroductory-course number
IOIDalmatian count