31 lines
1.5 KiB
Markdown
31 lines
1.5 KiB
Markdown
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---
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categories:
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- presentaties
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date: 2018-11-15T10:31:43+02:00
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description: ""
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layout: event-talk
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tags:
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- gigatron
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- ttl-chips
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title: "Walter Belgers - Gigatron TTL Computer"
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speakers:
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- walter-belgers
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presentation:
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filename: 2018-11-15-walter-belgers-gigatron-ttl-computer.pdf
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recording:
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platform: youtube
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url:
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---
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## Abstract
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What happens when a hacker gets his hands on a heap of 7400-series TTL chips, an oscilloscope and a soldering iron? In 1975 Wozniak famously made Breakout out of 44 such chips. When the MOS 6502 and Zilog Z80 were launched one year later, his Apple 1 started the microcomputer revolution. But were these processor ICs really necessary for that?
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One year ago we ordered a bunch of such ICs, bought an oscilloscope and started hacking. The result is a fully functional microcomputer from 36 TTL chips, ROM, RAM, some diodes, etcetera, but most importantly: no microprocessor.
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This talk explores the hardware design, the software stack and the capabilities of our result we now call “the Gigatron”. It will give you a good understanding of how a CPU works and what interesting design decisions we have made to keep our CPU small, yet powerful.
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## Biography
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Walter Belgers is a hacker, having worked in IT security for all his life, the majority as a penetration tester and currently as a security officer at Philips. He is also the chairman of Toool, the Open Organisation of Lockpickers. He has been soldering since the 1970s but never before has he built a complete computer.
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