Acorn Atom Keyboard layout
                          ==========================

  +---++---++---++---++---++---++---++---++---++---++---++---++---++---++---+
  |   || ! || " || # || $ || % || & || ' || ( || ) ||   || = || * ||   ||   |
  |ESC|| 1 || 2 || 3 || 4 || 5 || 6 || 7 || 8 || 9 || 0 || - || : || ^ ||BRK|
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+---++---++---++---++---++---++---++---++---++---++---++---++---++---++---+
|   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   |
|<->||COP|| Q || W || E || R || T || Y || U || I || O || P || @ || \ ||DEL|
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   +---++---++---++---++---++---++---++---++---++---++---++---++---++---++---+
   | ^ ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   || + ||   ||   ||   |
   | v ||CTL|| A || S || D || F || G || H || J || K || L || ; || [ || ] ||RET|
   +---++---++---++---++---++---++---++---++---++---++---++---++---++---++---+
      +---++---++---++---++---++---++---++---++---++---++---++---++---++---+
      |   ||   ||   ||   ||   ||   ||   ||   ||   || < || > || ? ||   ||   |
      |LCK||SHT|| Z || X || C || V || B || N || M || , || . || / ||SHT||REP|
      +---++---++---++---++---++---++---++---++---++---++---++---++---++---+
                     +--------------------------------------+
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