All posts in the 'Computer projects' Category

The goal is to get a ~100 Euro unit to do 10 million key guesses per second. This device is built for the fun of building it and to see what’s possible with current hardware. UNIX Crypt requires 25 passes of a modified DES algorithm with each DES pass requiring 16 rounds to complete. This gives a total of 400 clock cycles to complete a single encryption, if each round is completed within one clock cycle. [more]

Interfacing an Analog-to-Digital Converter (ADC) with Linux via the parallel port is fairly simple. There two major areas that need to be addressed - hardware and software. The hardware consists of the parallel port, an ADC, and an analog signal source. The software programmed in ‘C’ language.[more]

Wolfy writes:Connecting a LCD display to the end of a printer-cable is a simple and effective way of providing additional functionality to your computer system. The printer-cable LCD can be mounted on your computer case or fitted inside a Jiffy-Box and displayed somewhere away from your case. I was very surprised at how quick, easy and cheap this little mod was to make. Even the fully functional software interface is simple to install and configure.[more]

This project was easy in concept, but it did take some work. Of course there’s a lot of soldering, but by far the trickiest part was interfacing the parallel port with Windows XP.It also works for other versions of Windows, and provides replacements for the old Outp and Inp functions.[more]

This device transforms your PC into a powerful controller that you can use to program and automate machines, circuits, or just about anything you can imagine. Its flexible 29 I/O ports that you can configure to work ( bit by bit or in groups) as inputs or outputs makes it adaptable to a wide array of applications .[more]