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Logic Gates Circuits Processors Compilers And Computers - Pdf

| Component | Function | Built from | |--------------------|--------------------------------------------|-----------------------------| | (Arithmetic Logic Unit) | Does math & logic (ADD, AND, CMP) | Adders, gates, multiplexers | | Control Unit | Reads instructions & signals data flow | Finite state machine (gates + flip-flops) | | Registers | Super-fast memory inside CPU | D flip-flops | | Clock | Syncs everything | Oscillator circuit |

C code: int x = 5 + 3; Compiler → Assembly: MOV R1, #5 ADD R1, #3 MOV x, R1 Assembler → Machine code: 8-bit binary (actual bytes) Source → Lexer → Parser → IR → Optimizer → Code Generator → Binary. PDF Case study: What happens when you write if (a > b) x = 1; – show the branch instruction and flag register use. 6. The Complete Stack: From Gates to OS Now zoom out. A computer = processor + memory + I/O + system software. logic gates circuits processors compilers and computers pdf

| Level | Example | |----------------------|--------------------------------------| | Application (Python) | print("Hello") | | OS / Libraries | write() syscall | | Compiler / Interpreter| Python → bytecode → C → ASM | | Machine Code | B8 01 00 00 00 (mov eax,1) | | Processor microarch | Pipeline, cache, branch predictor | | Logic gates | AND/OR/NOR latches | | Transistors | CMOS silicon | | Electrons | Voltage differences (0V = 0, +5V = 1) | | Component | Function | Built from |

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