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J. A. ASSOCIATES

Quality Software Since 1989

VDC is freeware that lets you assign a single letter to a buried folder, as seen on TechTV on July 15, 2003 as Sarah Lane's "Download of the Day". It will also let you run many CDs from your hard drive.

The Pro version, which let's you make the Virtual Drives permanent, is only $14.95.

The REC is a programmable Windows calculator that performs the functions of a Reverse Polish Notation scientific calculator (an RPN calculator) and a lot more. It offers more than 250 functions and many conversions with six unique Keypads: Standard, Engineering, Binary, Magnetics, Trigonometry, and Convert, (click on the individual Keypad name for a complete description of that Keypad) for only $49.95. That's 6 calculators for less than $10 each! We also offer a couple of lite versions; one for $19.95 (single Keypad) or $29.95 for any two Keypads.

RPN Engineering Calculator™ (REC)

Remember your favorite calculator? Was it the HP -65, -67, -97, -41, -28S or one of the many programmable calculators offered by TI, Radio Shack, Casio, or Sharp. Now the REC offers you the same ability as those great calculators. We've added the REC Programming Language which allows you to write complex equations once, and solve them many times over. You are able to write as many programs as you can think of, there is no limit. Click this link to learn more about the REC Programmable Language, RECPL. When you download the trial, you will receive a 10 page comprehensive manual in PDF format and several sample programs.

It's even easier to solve the more complex functions; fifteen of them are individual popup calculators that solve those functions only!

Why use the RPN Engineering Calculator?

Using RPN calculators makes complex calculations quite easy. With all the additional functions of the RPN Engineering Calculator™ makes this one indispensable. Download it now for a thirty day free trial!

Virtual Drive Creator™ (VDC)

The Old Geezer

8x10 lithograph of the Original Black and White photograph of the famous 'Old Geezer', circa 1957. Featured in the September 1982 AIR FORCE Magazine article Nick Allen and the Old Geezer.