Computer Science·February 17, 2025
Cooling Systems: Air Cooling vs Liquid Cooling
Why does my PC sound like a jet engine every summer? Choosing between a fan breeze and a cold water shower for your CPU.
#cs#hardware#cooling#air-cooling
Writing about development and technology.
Why does my PC sound like a jet engine every summer? Choosing between a fan breeze and a cold water shower for your CPU.
If your computer keeps randomly rebooting, it might be a cheap PSU. A steady heartbeat keeps the body (and computer) alive.
I thought the motherboard was just a board to plug things into. Then I learned what a chipset does.
Ever hit 'CUDA Out of Memory' while training a deep learning model? Understanding the difference between VRAM and regular RAM.
You can make your CPU faster for free? The story of how I almost fried my CPU pushing past factory limits.
Why does MacBook battery last long? Should I use AWS Graviton? A deep dive into the philosophy of CISC (Complex) vs RISC (Simple) architectures.
When the CPU is 100% busy and you move the mouse, does it respond? Polling vs Interrupts explained.
Why 32-bit OS is capped at 4GB RAM. The role of Address, Data, and Control Buses. How PCIe lanes affect your RTX 4090 performance. Von Neumann Bottleneck explained.
How do you run a 10GB game with only 8GB of RAM? The OS secretly uses part of your hard drive.
Bought a fast SSD but it's still slow? One-lane country road (SATA) vs 16-lane highway (NVMe).
LP records vs USB drives. Why physically spinning disks are inherently slow, and how SSDs made servers 100x faster.
Does 8 cores mean 8x faster? From Amdahl's Law to concurrency vs parallelism, hyper-threading, and why Chrome eats so much RAM.
Why did AI and deep learning abandon CPUs for GPUs? From ALU architecture to CUDA memory hierarchy and generative AI principles.
90% of CPU performance is determined by cache. From data locality and MESI protocol to cache mapping, TLB, branch prediction, and NUMA.
From DRAM leakage currents to ECC, HBM, and real benchmarks (fio, sysbench). A developer's guide going beyond simple analogies.
Don't be fooled by spec sheet numbers. The real secret of CPU performance isn't how fast it ticks, but how much work it does per tick.
Do you Wash-Dry-Fold sequentially or overlap them? The secret to CPU performance boost.
How the CPU breathes. This 3-step rhythm repeated billions of times a second is the computer's life.
A CPU is actually a giant factory. Inside, there are Managers, Workers, and Workbenches.
Current flows = 1, Stoops = 0. But how does it remember info? The birth of 1-bit memory.
