1) Which part of the CPU performs calculations and logical operations? a) Arithmetic Logic Unit b) Registers c) Control Unit d) Cache 2) What is the main role of the Control Unit? a) Stores data permanently b) Performs calculations c) Controls CPU operations d) Displays output 3) Which component temporarily stores data currently being processed by the CPU? a) Hard drive b) Optical disk c) ROM d) Register 4) Which two components are part of the CPU? a) RAM and ROM b) ALU and Control Unit c) GPU and PSU d) Motherboard and cache 5) What is the main difference between RAM and ROM? a) RAM is permanent b) RAM stores firmware c) RAM is slower d) RAM is volatile 6) Why is RAM important for computer performance? a) Stores files long term b) Improves internet speed c) Faster access to programs d) Controls hardware 7) How does a smartphone processor differ from a PC processor? a) Uses more power b) Uses System-on-a-Chip c) Less integrated d) Has no GPU 8) Why is System-on-a-Chip suitable for mobile devices? a) Reduces power use b) Uses more energy c) Increases device size d) Requires external cooling 9) Which feature helps improve battery life in mobile devices? a) Higher clock speed b) Magnetic storage c) External GPU d) Integrated components 10) How does a computer understand user input? a) Stores to ROM b) Converts to binary c) Displays on screen d) Saves to hard drive 11) Which unit measures the smallest amount of data? a) Byte b) Kilobyte c) Bit d) Megabyte 12) Put these storage sizes in order from smallest to largest. a) GB, MB, KB, TB b) Bit, Byte, KB, MB c) MB, KB, Byte, Bit d) TB, GB, MB, KB 13) Which storage size is larger than a gigabyte? a) Megabyte b) Kilobyte c) Byte d) Terabyte 14) Which action can help improve mobile phone battery life? a) Close background apps b) Increase brightness c) Use max performance d) Leave Wi-Fi on 15) Why do higher specification graphics cards produce more heat? a) Use fewer components b) Reduce power usage c) Slower clock speeds d) More processing 16) Which component carries data between internal computer parts? a) Bus b) Register c) Heat sink d) Power supply 17) Which factor affects CPU performance? a) Case size b) Keyboard type c) Clock speed d) Monitor resolution 18) Why do mobile processors focus on efficiency rather than raw power? a) Reduce cost b) Improve battery life c) Increase resolution d) Support storage

Computer Components and Performance

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