Index: en/development-projects.shtm =================================================================== --- en/development-projects.shtm (revision 213) +++ en/development-projects.shtm (revision 215) @@ -10,5 +10,5 @@ --> -
The legendary puncher FACIT 4070
+The parallel port consists of three 8-bit hardware registers: a bidirectional data register, a control register and a signal register. Since paper tapes are made of @@ -72,12 +75,7 @@ implement a interrupt (device cycle) driven communication, since the status register features one interrupt enabled bit (strobe). Our devices punch at 80 chars/sec and read in -250 chars/sec, so even older PCs can easily run the driver programs.
+250 chars/sec, so even older PCs can easily run the driver programs.The legendary puncher FACIT 4070
-As already told, there's not really the question how to model punched papers on +As already told, there's not really the question how to model punched papers on computers, since they use the same word length (8 bit) and computer files are conceptually the same as paper tapes: byte arrays. A 250 byte binary file therefore