AN ASCII KEYBOARD:

=======================================================
|[][][][][][][][][][][][][][][][][][][][][][][][][][][]|
|                      ___________                     |
|   ooooo     ooooo   |          |   ooooo    ooooo   |
|   ooooo     ooooo   |          |   ooooo    ooooo   |
|   ooooo     ooooo   |__________|   ooooo    ooooo   |
|                                                     |
|  []  []  []  []  []  []  []  []  []  []  []  []  [] |
-------------------------------------------------------
| |#| |#| |#| | |#| |#| | |#| |#| |#| | |#| |#| | |#| | |
| |#| |#| |#| | |#| |#| | |#| |#| |#| | |#| |#| | |#| | |
| |#| |#| |#| | |#| |#| | |#| |#| |#| | |#| |#| | |#| | |
| |#| |#| |#| | |#| |#| | |#| |#| |#| | |#| |#| | |#| | |
| \ / \ / \ / | \ / \ / | \ / \ / \ / | \ / \ / | \ / \ |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | |
---------------------------------------------------------
 

AN ASCII OSCILLOSCOPE:

=======================================
|[][][][][][][][][][][][][][][][][][][]|
| ____________                         |
|/            \  ==+=   =+==   =+==  0 |
||         0  |  o..o   o..o   o..o  * |
P||__/\  /\  __|                      0 |q
I||    \/  \/  |     _  <  _  >  _      |I
I||            |    /,\   /,\   /,\     |I
I|\____________/    \_/   \_/   \_/  OO |I
I|                                      |I
I|[][][][][][][][][][][][][][][][][][][]|I
I|______________________________________|I
I                                        I
==========================================
 

AN ASCII REACTION:

         \    .       /
         |  .  ..    |
         | .      .  |
         |    .  .   |
         |  o  o  .  |
         |\_____o___/|
         | ,  o .    |
         |  .   o .  |
         |   o o o.  |
         |o o  .. . o|
         \----------/
         XXXXXXXXXXXXXXXXXXXXXXXX
         ======================
         //          .        \\
         ||          /|         ||
         ||          \/         ||
         ||          |/         ||
         ||          /|          ||
         ||          \/          ||
         ||         |--|         ||
         ||         | ||         ||
         ||         | ||         ||
         ||         | ||         ||
         ||         | ||         ||
         ||         | ||         ||
         ||         | ||         ||
         ||         | ||         ||
         ||         | ||         ||
         ||         |__|         ||
         ||         | n|         ||
         ||         | U|         ||
         ||   ______/===\         ||
         ||  ______/     \        ||
         ||      ===========      ||
         ||    ================    ||