CISC Architecture, or Complex Instruction Set Computing, is a type of computer architecture that allows a single instruction to execute multiple operations. This design aims to reduce the number of instructions per program, making it easier for programmers to write complex code. Each instruction can perform tasks like loading data, performing arithmetic, and storing results, all in one command. CISC processors typically have a larger set of instructions compared to RISC Architecture (Reduced Instruction Set Computing). This can lead to more efficient use of memory and potentially faster execution of complex tasks, although it may also result in longer execution times for simpler instructions due to their complexity.