Describir: Three lectures on architecture :

  _  __    ______               ___                _____    ______      ___    
 | |/ //  /_   _//     ___     / _ \\    ____     |  ___|| |      \\   / _ \\  
 | ' //    -| ||-     /   ||  / //\ \\  |    \\   | ||__   |  --  //  | / \ || 
 | . \\    _| ||_    | [] || |  ___  || | [] ||   | ||__   |  --  \\  | \_/ || 
 |_|\_\\  /_____//    \__ || |_||  |_|| |  __//   |_____|| |______//   \___//  
 `-` --`  `-----`      -|_|| `-`   `-`  |_|`-`    `-----`  `------`    `---`   
                        `-`             `-`