Problem 4 (10 points) owng questions, choose one answer. The devices that referred to as: a) CPUt provide the means for a computer to communicate with the user or other computers are re b) ALU c) I/O d) none of the above 4.1) Which of the followsing are the three basic sections of a microprocessos a) operand, register, and arithmetic/logic unit (ALU) and tming, register, and arithmetic/logic unit (ALU) c) control and timing, register, and memory d) arithmetic/logic unit (ALU), memory, and input/output 4.III) The software used to drive microprocessor-based systems is a) assembly language c) machine language code d) BASIC interpreter instructions 4.IV) When referring to instruction words, a mnemonic is: a) a short abbreviation for the operand address b) a short abbreviation for the operation to be performed c) a short abbreviation for the data word stored at the operand address d) shorthand for machine language 4.V A register in the microprocessor that keeps track of the answer or results of any anithmetic or logic operation is the: a) stack pointer b) program counter c) instruction pointer ator