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paulg's profile
Paul Graham
Paul Graham
Paul Graham
Verified account
@paulg

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Paul GrahamVerified account

@paulg

paulgraham.com
Joined August 2010

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    1. Ken Shirriff‏ @kenshirriff 17 Jun 2020

      The influential 8086 processor is 42 years old this month, so I took high-res die photos to celebrate. The 8086 is the origin of the x86 architecture still used by most desktop and server computers. Its microcode bits are visible under the microscope. http://www.righto.com/2020/06/a-look-at-die-of-8086-processor.html …pic.twitter.com/AJYr3KjgT2

      Die photo of the 8086 microprocessor. The metal and polysilicon layers were removed to expose the underlying silicon. Functional blocks are labeled: Adder, Upper registers, Lower registers, ALU, Control, Decode, and Microcode.
      A closeup view of the microcode ROM. It is arranged in a grid pattern. Individual bits are visible as rectangles.
      Die photo of the 8086 showing the metal layer. Bond wires are connected to the edges of the square die.
      A closeup of some transistors in the 8086. They appear as purple regions with complex shapes.
      39 replies 714 retweets 2,302 likes
      Paul Graham‏Verified account @paulg 17 Jun 2020
      Replying to @kenshirriff

      I need to follow more people who take photos of CPUs to celebrate their birthdays.

      10:05 AM - 17 Jun 2020
      • 1 Retweet
      • 89 Likes
      • AYDIN rohan Suraj Andrey Rahmatullin Fritz Johnson Sean Oswald Spyxz Scott Snelling 🏔🌊 Ronald Das
      1 reply 1 retweet 89 likes
        1. New conversation
        2. Joël Franusic‏ @jf 17 Jun 2020
          Replying to @paulg @kenshirriff

          It's likely that you already follow everybody who does that.

          1 reply 0 retweets 21 likes
        3. Paul Graham‏Verified account @paulg 17 Jun 2020
          Replying to @jf @kenshirriff

          I feared as much.

          0 replies 0 retweets 1 like
        4. End of conversation

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