1. OCR A Level (H046-H446) SLR1 - 1.1 ALU, CU, registers and buses

OCR Specification Reference
AS Level 1.1.1a
A Level 1.1.1a

00:00 Intro
00:19 ALU, CU, Registers and Buses: Main Components of a Computer
01:01 Internal Structure of the CPU
01:20 Control Unit
02:18 Program Counter (PC)
03:06 Memory Address Register (MAR)
03:26 Memory Data Register (MDR)
03:53 Current Instruction Register (CIR)
04:38 Arithmetic Logic Unit (ALU)
05:22 Accumulator (ACC)
06:17 Busses
07:28 How This all Relates to Assembly Language Programs
08:37 Key Question
08:46 Going Beyond the Specification
09:04 Other Important Components of the CPU
09:20 Decode Unit
09:54 Status Register
10:20 Clock
10:59 Interrupt Register (IR)
11:39 Cache
12:17 Outro