Computer Architecture and Computer Organization Masterclass

Explore Moore's law implications for transistor density and cost, and navigate the seven layers of the computer level hierarchy from physical logic to user programs, including assembly and high-level languages.

Explore the fetch–decode–execute cycle, and how the CPU, registers, and main memory interact to fetch instructions, decode data, and execute operations, including possible interruptions.

Explore the Little Man Computer model by examining RAM, memory addresses, registers, and buses, then load and execute a program step by step using the simulator.

Program the little man computer with assembly language, loading memory cells 60–62 into the accumulator, adding them, and storing the result in cell 65.

Explore the fetch-decode-execute cycle using the Little Man Computer, detailing instruction flow through the instruction register, address register, memory, and the accumulator.

Write assembly language code to load values, perform memory updates, and verify that memory cells in ram reflect the correct addresses and accumulated results.

Explore the instruction set architecture (isa) as the interface between hardware and software, detailing how assembly and machine-level operations coordinate registers, memory, and i/o.

Compare CISC and RISC architectures, highlighting fixed-size, highly optimized reduced instruction set for mobile devices and the flexible complex instruction set.

explore how instructions in computer architecture combine opcode and operand, how addressing and memory size influence instruction length, and how bus structure governs data and instruction transmission.

Explore how to evaluate computer performance using response time, execution time, and throughput, and compare machines by reciprocal execution time for a clear speed measure.

Learn to solve CPU time calculations by using cycles, clock rate, and CPA to determine execution time; the lecture walks through converting 45 million cycles into seconds and appropriate units.

Analyze the cpu structure by examining the control unit, arithmetic logic unit, and registers, and how buses interconnect memory and I/O to fetch, decode, and execute instructions.

Categorize registers into two types—user visible and control and status—and identify four user-visible categories: general purpose, data, address, and condition codes, including the program counter as an example.

Explore how cpu interruptions disrupt the fetch-decode-execute cycle and save program context, and how the processor resumes after an interruption in a computer architecture and computer organization masterclass.

Learn techniques to boost cpu performance, including sybil pipelines, cbp planning, higher clock frequency, and multi-level cache to reduce memory access time.

Explore the cpu pipeline, its six stages, and how overlapping decode and execution enables parallel processing to boost performance, illustrated with a car-manufacturing analogy.

Explore how resource hazards arise when multiple instructions contend for a single resource, causing bottlenecks in memory or buses and stalling the pipeline; learn how increasing resources mitigate these hazards.

Examine branch prediction strategies and algorithms that forecast the next instruction using history, such as taken or not-taken outcomes, loop behavior, delayed branching, and two-level correlation methods.

Explore cpu overclocking as a technique to boost performance by increasing clock frequency while considering motherboard, memory, cooling, and bios updates.

Explore I/O mapping techniques, including memory-mapped I/O and isolated I/O with ports. Compare their address space, control signals, and efficiency in single-bus versus separate-bus designs.

explain asynchronous data transfer by contrasting it with synchronous timing, using handshaking and strobe control to coordinate source and destination, handle data and control signals, and ensure data accepted.

Explore three data transfer modes: program controlled IO, interrupt-driven IO, and direct memory access (DMA), and learn how they coordinate CPU, memory, and IO devices to move data.

Explore the memory hierarchy from registers to external storage, highlighting on-chip cache levels (L1, L2, L3) and how capacity grows while latency increases down the stack.

Explain the principle of locality within a memory hierarchy, showing how temporal and spatial locality guide cache and register use to optimize data and instruction access.

Explore cache performance by examining memory access time, miss penalties, and miss rates, and optimize with multilevel caches, larger blocks, and replacement strategies to reduce latency.

Calculate miss rates across memory levels by computing level-specific local miss rates and then deriving a global miss rate for the overall program.

Explore how RAM works from memory cells to read and write data, compare static RAM and dynamic RAM and their refresh cycles, and how memory hierarchy and cache affect latency.

Explore dram technology by examining memory banks, data lines, and address and column selectors, and understand how rows and columns organize memory cells to impact capacity and bandwidth.

Discover how dram works, exploring memory banks, rows and columns, decoders, buffers, and timing that enable read and write operations.

Demystify the DRAM read cycle by tracing bank, row, and column selection, control signals, and buffers that enable read and write, with refresh to maintain volatile data.

Explains how sdram and ddr sdram use synchronous timing and clocked control to boost bandwidth, enabling multiple operations per cycle and faster read/write performance.