Initial Commit with everything done

Project 1/Or.hdl

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+// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/01/Or.hdl
+
+ /**
+ * Or gate:
+ * out = 1 if (a == 1 or b == 1)
+ *       0 otherwise
+ */
+
+CHIP Or {
+    IN a, b;
+    OUT out;
+
+    PARTS:
+    Not(in=b,out=negB);
+    Not(in=a,out=negA);
+    Nand(a=a,b=negB,out=out1);
+    Nand(a=out1,b=b,out=out2);
+    Nand(a=negA,b=out2,out=out);
+}