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# Logic State Definition/Meaning:

The logical sense, true or false, of a given binary signal. A binary signal is a digital signal that has only two valid values. In physical terms the logical sense of a binary signal is determined by the voltage level or current value of the signal, and this in turn is determined by the device technology. In TTL circuits, for example, a true state is represented by a logic 1, approximately equal to + 5 volts on a signal line; logic 0 is approximately 0 volts. Voltage levels between 0 and +5 volts are considered undefined.

Since only two logic states, logic 1 and logic 0, are possible, the techniques of Boolean algebra may be used to analyze digital circuits involving binary signals. The term positive logic is applied to circuits where logic 1 is assigned to the highest voltage level; in negative logic circuits a logic 1 is indicated by the lower voltage level.

## Near by Terms:

 Load and Go Load and Store Loader Local Local Area Network (LAN) Location Location Operator Lock (lock primitive) Lockout Locks and Keys Logic Logical Logical Data Type Logical Encoding Logical Value (Boolean value) Logic Card Logic Circuit Logic Diagram Logic Element Logic Family Logic Function Logic Gate Logic Instruction Logic Level Logic Operation Logic Probe Logic Programming Languages Logic State Logic Symbols Login (logon) Logoff (logout) Longitudinal Redundancy Check (LRC) Loop Lower Bound Low-Level Language Low-Pass Filler

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