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Tag: CPU
Inside the vintage 74181 ALU chip
Ken Shirriff writes: The 74181 ALU (arithmetic/logic unit) chip powered many of the minicomputers of the 1970s: it provided fast 4-bit arithmetic and logic functions, and could be combined to handle larger words, making it a key part of many CPUs. Inside the vintage 74181 ALU chip -...
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Tiny OLED PC Performance Monitor
Rupert Hirst build a tiny OLED PC performance monitor based on Psyrax's serial monitor. The display monitors CPU and GPU temperature and activity etc. He writes: After a recent purchase of a Nvidia GTX1080 graphics card, 4k monitor plus Doom(2016), I thought it would be great to see...
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A Bench Power Supply using computer PSU
As we know, PSU in computers provides various DC voltages, 3.3V, 5V and 12V. These 3 levels are the most common ones needed in our labs, so usually PC PSUs are used by a lot of makers and hackers as their personal bench power supply. The PSU has a standard connector called ATX, you can...
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What Will Happen to Moore’s Law in 2021?
Moore’s law states that the number of transistors doubles every two years. Rachel Courtland from IEEE Spectrum explained the sharp turn of Moore's law in 2021. Chip manufactures will switch to another way of boosting the density in the chip by having multilayer chips using vertical...
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Schematic, Mask, and Die Shot of Intel’s 4004 CPU from 1971
Celebrating its 45th anniversary, adafruit stumbled upon these high-resolution images of Intel’s 1971-released 4004 CPU. Click any of the below images to view them at their maximum scale on the MIT domain: Schematic, Mask, and Die Shot of Intel’s 4004 CPU from 1971 -...
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All CPU and MCU documentation in one place
larsbrinkhoff @ github.com has compiled a list of all CPU and MCU documentation. The list contains data sheets, programmer's manuals, quick reference cards etc. This repository contains the documentations for various CPUs. It may contain data sheets, programmer's manuals, quick...
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