EDSAC or Electronic Delay Storage Automatic Calculator is one of the first computers in the world. This computer was built in UK and was first used in 1949 wherein it provided simple calculations. Although it’s relatively unknown outside the developer’s and business realm, it became the basis of today’s computers.

If you want to take a look at how the computer works, download the application called EDSAC Simulator. As the name suggests, the application will let you experience how one of the first computers in the world was used. The application will easily launch in the latest operating systems. Developers of the simulator have also developed versions for Linux and OS below Windows 95. The Mac version of EDSAC Simulator comes in black and white but might not load in recent OS of Mac.

Although the computer is very lightweight (around 2MB in size), the application is a little bit complicated to launch. Don’t forget to download the documentation wherein a tutorial on how to load additional applications to the simulator. Those who have worked with the simulator have also developed simple applications that could be used in EDSAC. The application itself already has a slew of applications to try. A debugging tool is also added in case you wanted to make some small improvements.

The EDSAC Simulator is your ultimate “Blast from the Past” application when it comes to computers. If you’re a computer teacher, you can show this to your students as part of the computer history lesson. It’s also a great way to fully understand how the first computer works.

Check it out at Edsac Software web page

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