Final answer:
The sum-of-products form of expressions is characterized by reducing logic circuits to simple AND and OR gates, reducing delay times, and limiting the number of gates a signal must pass through.
Step-by-step explanation:
An important feature of the sum-of-products form of expressions is that all logic circuits are reduced to nothing more than simple AND and OR gates. This means that complex logic circuits can be simplified and implemented using only these basic gate types. Another important feature is that the sum-of-products form reduces the delay times compared to other forms of expressions, as it minimizes the number of gates that each signal must pass through. Additionally, the sum-of-products form ensures that no signal must pass through more than 2 gates (not including inverters), which helps in improving the overall efficiency of the logic circuit.
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