BOB°ëµº

Word Explorer
Children's
Dictionary Suite
 
Elementary Dictionary
       

system unit

 
pronunciation:
sIs tm yu niht
part of speech: noun
definition: The main part of a computer is called the system unit. Things inside the system unit let you do all the things you can do with the other parts of the computer, such as the keyboard and the mouse.
Dan's mouse wasn't working because it wasn't connected to the system unit.