If you make your own computer with only transistors without using integrated circuits

The evolution of computers is the evolution of semiconductors,Integrated circuit (IC)Although it is also an increase in the integration density of the computer, as with the evolutionary flow of the computer, without using IC at allA transistorA self-made computer made only by "FullTr-11"is. Computer made with LED as the latest version of Computer FullTr-11 made by the transistor "Super L Chika Computer"Has appeared.

Kit making a computer with transistors --- CPU and memory made with transistors
http://recursion.jp/comp/j/index.html

Super L Chika Computer --- Computer to make with LED without using IC
http://recursion.jp/rl/SuperLED/j/

What is a kit "FullTr - 11" that makes a computer with transistors You can understand something in one shot by watching the following movie.

FullTr-11: Kit for making computers with transistors - YouTube


This is a computer made of transistor "FullTr-11"


FullTr - 11 is manufactured with transistors and CPU and memory, and does not use any IC at all. The total parts count is amazing 6926 pieces.


Dense wiring of transistors on the board. I am committed to not using collective resistance etc which seemingly can be mistaken for IC at first glance because it penetrates a transistor only without using any IC. Since FullTr-11 is a self-made computer kit, they all require manual soldering, and it seems that my head gets chipped when I think about the way to completion.


For size comparison, this is compared with the iPhone.


It is like this when compared with human (height: 170 cm).


With instruction decoderArithmetic unit (ALU).


Register, clock, parts of display circuit.


RAM


Each component of the ROM and the computer consists of a transistor.


Demonstration of calculating the Pi using FullTr-11.


Along with the start of calculations, the LEDs placed in various places glitter.


The answer which was flicked out after a few seconds is "3.14". Why is it three digit display ... ?.


The specifications of FullTr-11 are 11 bits for CPU, 1 kHz for frequency, 5.5 bytes for RAM and 128 bytes for ROM.


"11" of FullTr-11 comes from the 11 bits of CPU. While the address width, register size, ALU size seems to be all 11 bits, while IC of power of 2 sorts expands because it is convenient for making integrated circuits such as 32 bits, 64 bits,The number of bits that were not in the past, and also the number of bits of the prime, that you chose 11 bits. As a result, FullTr-11 has obtained the title of "World's first 11-bit computer". As for FirstTr - 11, you can purchase a finished product with 199,000 yen (excluding tax) as long as one is first - come first served.

Whether 6926 parts can actually be assembled is that everyone will become uneasy, and frequently asked questions are also released. According to it, it is important to make FullTr - 11 that "It is important to carefully read the instruction manual and perseverance that does not throw away on the way."

FullTr-11 Frequently Asked Questions: Kits for making computers with transistors --- CPU and memory made with transistors
http://recursion.jp/comp/j/faq.html

Q: Can a beginner make it?
A: I think that it is impossible for people who do not have soldering at all. I think that you can make it if you have experience of soldering to a certain extent. What you need to complete the assembly of this kit is the attention to read the instruction carefully and perseverance not tossing in the middle.

Q: Can intermediate and advanced users make it easier?
A: Because there are a lot of parts, whether it is comfortable or not depends on the person. What you need to complete the assembly of this kit is careful reading attention rather than whether it is an intermediate level or not, and perseverance that does not throw away on the way.

Q: Do you have support?
A: Because this is only the number of parts, it is difficult to identify the cause of malfunction or cause of trouble only by means such as e-mail. That's why I'm sorry but please assemble with self-responsibility, no support.

Q: Does Windows or Word work on this computer?
A: No. Neither Windows, Word nor Excel will work.

Furthermore, by refining FullTr-11, the logic circuitDTL (Diode-transistor logic)Computer "Super L Chika Computer" has been released.

For the "Super L Chika Computer" with more glossiness by using lots of LEDs due to DTL conversion, you can check with the following movie.

Super L Chika Computer: Computer made with LED without using IC - YouTube


This is "Super L Chika Computer". It is based on FullTr-11.


Create a CPU with DTL.


Dense forests of transistors evolved into a jungle of LEDs.


Calculate PI of your promise.


After shining with doubtful MAX ......


I got an accurate number "3.14".


Super L Chika Computer will be held at Tokyo Big Sight on August 1 and 2, 2015Published at Maker Faire TokyoPlanned to be. Also, Super L Chika Computer is scheduled to be sold as a finished product only for 2 units, and it will accept individual negotiation for details.