Soviet gadget

In 1983, the Soviet Union devised a multifunctional gadget called
programmable scientific calculator "Elektronika B3-34».




Then made a splash among the students of our Institute, as He has a terrific in-class features. Described instance is still alive and is valid!

Your hardware came with plump guide:



The functions of the gadget of computing device







Released this miracle 30 years ago:



Here is his softkeys:



It has a flexible and extensive logic, not inferior to modern programming languages, allowing 98-step program to squeeze those hell-knows what! (See below.)

Its circuit design: simple and elegant:





Two processor core and Mathematics ...



... And memory. And, interestingly, the data and the program is not stored in static cells, and two shift registers, looped with processors that continuously cycled serial bus (I was hachil this device using an oscilloscope and logic indicator for increase the capacity of the software stack, but his hands are not reached, then the problem has lost its urgency - there was a spark-226 ...) As with all our scientific calculators have an extremely advanced mathematics (look at the signature on the button). In the space to fly, you know, here you and arctangent, and logarithm decimal and natural need! Allows to operate with numbers from 10 ^ -95 to 10 ^ 99 (and implicitly - somewhere up to 10 ^ 270), it can be used for scientific calculations in a variety of areas - from the atomic theory to astronomy.



Here, and this time I doeksperimentirovalsya: burned transistor on the input power, had to solder.



But you know this, what?



It is my cherished tetradochku programs for this miracle. That's what it was:



... Not only that, but (published in the studio! Solving equations by bisection method Simpson integral derivative of the function of any order to calculate the determinant (matrix, to put it simply) 4th order Differential Equations Euler method Statistical calculations (mean, sr.- Blocks. Off., Student, etc.) The calculation of the regression coefficients The experimental curves Roulette! simulation of cellular automata (in other words, "evolution") That's it, Lord, just 98 steps and 14 variables +4 level stack ... Learn, Microsoft! Soldering Perhaps someone noticed this strange Circuits:



So, this is the first case of overclocking in the Union! Namely, by pumping frequency control drag chain clock on a chip 165GF3 (near) the performance of the gadget was able to raise a half times! (Recall intelevskie stones began nominally overklochitsya with 486 ...)

Calculation mode.



Programming mode.



Source: newcopperbeard.livejournal.com