(Paper 1) Cambridge A Level Computer Science

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11 / 27: The Internet and the World Wide Web

12 / 27: Domain Name Servers (DNS)

13 / 27: The CPU and Von Neumann Architecture

14 / 27: Main Memory (RAM, ROM and Cache)

15 / 27: Logic Gates (AND, OR and NOT)

16 / 27: Special-Purpose Registers (PC, ACC, MAR and MDR)

17 / 27: Factors Affecting CPU Performance (Clock Speed, Cache & Multi-Cores)

18 / 27: Secondary Storage (Optical, Magnetic, Solid-State & Cloud)

19 / 27: Virtual Memory and Flash Memory

20 / 27: Operating System (OS)