A high gear used at high speeds to maintain the driving speed with less output power.

A type of microprocessor from Intel designed to replace a computer’s existing i486SX or i486DX microprocessor. The OverDrive is functionally identical to Intel’s i486DX2 microprocessor, but it is an end-user product, whereas the i486DX2 is sold only to computer manufacturers who build it into their own systems. Upgrading a system with an OverDrive processor differs from system to system, and some systems might not be able to support an OverDrive processor. See also i486DX, i486SL, i486SX, microprocessor. Compare i486DX2.

To drive or work too hard