Think Like a Machine: Computer Architecture Unlocked

Explore immediate, register, direct, indirect, implicit, and indexed addressing modes with examples. Learn increment and decrement, relational, and base addressing as key concepts.

Explore the instruction cycle, fetch, decode, and execute, and see how memory, the processor, and PC, MAR, and IR drive input and output to compute results.

Explore the CPU as the brain of the computer, examining registers, the ALU, and the control unit, and learn how instruction pipelining and memory (main, cache, virtual) enable data processing.

Explore how the cpu uses the flag, instruction, and data registers, plus the program counter, to manage execution, store intermediate data, and track parity, sign, and zero results.

Explore the program status word and how PSW and separate hardware registers expose CPU status. Compare CISC and RISC architectures, their instruction sets, addressing modes, and execution models.

Explore hardware control and the cpu's control unit, including control logic from gates and flip-flops, and microprogrammed organization with control memory for micro operations and interrupts.

explore instruction pipelining by breaking a big instruction into stages, detailing fetch, decode, execute, and store. learn how parallel segments accelerate processing and why dependencies affect cycle count.

Learn the memory hierarchy, from main memory and registers to cache memory, and see auxiliary memory like magnetic tapes, optical discs, pendrive, and hard drives, plus cache speeds up processing.

Explore the main memory concepts, comparing RAM and ROM, and distinguishing SRAM, DRAM, and SDRAM, with emphasis on cache use and main memory roles.

Explore read-only memory as permanent storage where data is read only, cannot be written or deleted, and learn about the 8-bit data bus and address lines.

Cache memory is fast memory between the processor and main memory. The hit ratio equals hits over (hits plus misses) and cache maps addresses to data.

Examine how the memory address map enables efficient memory design and RAM/ROM allocation to minimize traffic. Explore associative memory or content-addressable memory and how registers support content-based search.

Explore write strategies in cache memory, including write-through and write-back, balancing cache and main memory, updating cache lines, and maintaining coherence.

Explore how data moves from main memory to cache via mapping, including direct and associative mapping, and how hits and misses affect memory access.

Explore direct, associative, and set-associative mapping and how their index and tag guide data between cache memory and main memory.

Explore virtual memory as an illusion of vast memory by using virtual addresses and an address space, with segments swapped between main memory and secondary storage.