Pressing go: watching 1+1 run on the machine, tick by tick, until the ALU produces the 2 and it lands in the memory cell that is x.
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How instruction bits are wired straight into the machinery: the program counter, the anatomy of an instruction, and memory-mapped I/O.
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How a clock and the data flip flop give a pile of logic gates time and memory: registers, RAM, and the heartbeat of the machine.
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Following the 1s and 0s into hardware: adders built from logic gates, every gate built from NANDs, and the transistor at the bottom.
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How 1+1 in a high-level language is ground down into binary machine code: compiler, VM translator, and assembler.
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