AQA 2024 A-LEVEL SCIENCE EXAM NEW UPDATE 2024 QUESTIONS AND VERIFIED ANSWERS (100% CORRECT) GRADED A+

AQA 2024 A -LEVEL S CIENCE EXAM NEW UPDATE 2024 QU ESTIONS AND VERIFIED ANSWERS (100% CORRECT ) GRADED A+ Arithmetic Logic Unit (ALU) - ANSWER - The part of the central processing unit that performs arithmetic computations and logical operations Control Unit - ANSWER - Coordinates a ctivities in the CPU, memory and peripherals Clock - ANSWER - Creates pulses to step the control unit through its operations. Increasing the frequency of pulses, or the "clock speed", increases the rate at which the computer can process instructions Regis ters - ANSWER - Very fast memory stored on or near the processor. General purpose registers are used to store variables within the CU. Increasing the number of these registers increases the number of variables that can be stored Radio Frequency Identification ( RFID) - ANSWER - A form of contactless identification which uses radio waves to transmit and receive data. Reader induces a current in the chip which allows it to transmit its data