## ADB - Computer Definition

(**A**pple **D**esktop **B**us) A low-speed serial interface for connecting keyboards, mice and other input devices to Apple IIgs and Macintosh computers. Starting with the iMac in 1998, the ADB was superseded by USB.

- The commutative law in arithmetic, for instance, states that
**adb**and b+a, or ab and ba, are equal. - If the ray suffers one internal reflection at D, then it is readily seen that, if DB be the path of the reflected ray, the angle
**ADB**equals 2r, i.e. - 7 angled at C,
**ADB**is the semicircle described on AB as diameter, AEB the circular arc described with centre C and radius CA= CB. - The arm CD turns on the axis C, and -.~ .- is jointed at D to the middle of the bar
**ADB**, whose length is double I of that of CD, and one of whose - ends B is jointed to a slider, sliding in straight guides along the line FIG 113. - Draw BE perpendicular to CB, cutting CD produced in E, then E is the instantaneous axis of the bar
**ADB**; and the direction of motion of A is at every instant perpendicular to EAthat is, along the straight line ACa.

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