n.
Pronunciation: ' trak- ˌ bo ̇ l
Function: noun
Date: 1967
: a ball that is mounted usually in a computer console so as to be only partially exposed and that is rotated to control the movement of a cursor on a display
n.
Pronunciation: ' trak- ˌ bo ̇ l
Function: noun
Date: 1967
: a ball that is mounted usually in a computer console so as to be only partially exposed and that is rotated to control the movement of a cursor on a display
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012