A superscalar architecture is a type of computer processor design that allows multiple instructions to be executed simultaneously. This is achieved by having multiple execution units within the CPU, enabling it to process several instructions in a single clock cycle. This parallel processing capability improves overall performance and efficiency. In a superscalar system, the processor can dynamically schedule instructions to take advantage of available execution units. This means that while one instruction is being executed, others can be fetched and decoded, reducing idle time and increasing throughput. This design is commonly found in modern microprocessors.