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josh64x2 / pt100reg.py
Created November 5, 2022 05:43 — forked from anonymous/pt100reg.py
PT100Reg - allows you to create a registration key for the PT100 terminal emulator for Newton
maxUnsigned = 0x1FFFFFFF
bitsInUnsigned = int(29)
seventyFivePercent = int(22)
twelvePercent = int(4)
highBits = 0x1E000000
lowBits = 0x01FFFFFF
def generateRegCode(userName):
reg = ""
sn = ""
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josh64x2 / System Design.md
Created November 6, 2018 01:34 — forked from vasanthk/System Design.md
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?