The ABB PFXA401SF 3BSE024388R4 is a Control unit.

The ABB PFXA401SF 3BSE024388R4 is a Control unit.

• Control Unit: Fetches instructions from memory, decodes them, and directs other parts of the CPU to carry out those instructions.
• Arithmetic Logic Unit (ALU): Performs arithmetic operations (addition, subtraction, multiplication, division) and logical operations (AND, OR, NOT).
• Registers: Temporary storage locations that hold data and instructions that are currently being processed by the CPU.
• Cache: A small amount of very fast memory that stores frequently used data and instructions.

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