I haven't seen any other videos of computers made using Education edition so I'm going to make some how-to videos in the future to break down the different concepts.
This computer is 8-bit with 8 bytes of memory. It has a program counter, instruction register, data register, full adder, accumulator, address register and relevant decoders. It also has a 7 segment display and converts binary to binary coded decimal using the double dabble algorithm. This video shows it during it's processing of a program I coded for it that calculates the Fibonacci sequence. The clock timings are triggered by a minecart going over detector rails. I am a teacher working in Victoria Australia and I'm using Minecraft Education to teach problem based learning, computational thinking and design thinking.
I had a similar problem. The solution was to connect common without resistor and to drive each segment through a resistor. This eliminated the "stealing" problem. As well as the changing of the brightness with each lit segment.