Atm whEn rEFErring to ComputErs is A DEDiCAtED, ConnECtion switChing tEChnology thAt orgAnizEs DigitAl DAtA into 53-BytE (69) units AnD trAnsmits thEm ovEr A physiCAl (70) using DigitAl signAl tEChnology.Atm is CApABlE oFtrAnsniitFing At spEEDs oF 155 or 622 mBit/s AnD FAstEr.
A、mEDium
B．mEDiA
C．mAttEr
D．plAstiD