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I'm reading the book called CODE by Charles Petzold. I'm currently in page 159 and I built a 8 bit binary adding machine that has 2 8 bit inputs. The sum is saved in an 8 bit level triggered D-type latch and the output of that 8 bit latch is given to the 2nd 8 bit input of the 8 bit adder. There's an Add button in the 8 bit latch which is basically just the clock, when 0 it will not save the 8 ...

I wanna put capacitors in my circuit, but i don't see them in the circuit elements. If you can't add them, please tell me an alternative to them that i can use in my circuits.

I am making a booth algorithm multiplicator, which is due today. The project was close to finish, but out of the absolut blue, the page froze and I have not being able to use it again ever since. It happens only on this specific circuit, it loads forever, I can't interact with anything, can't copy. please help

How do I view my online saved projects?

The program does not work on a tablet such as an ipad. That is unfortunate. Is there a solution for this?

Where is the seven segment display

There is a pop-up saying "Project was successfully destroyed" lost all my circuits till date , what to do ?

I am trying to set up a class, but want to include multiple TAs in the course. Is this possible? Also, is it possible to change password/username associated with an account?

how can i simulate the circuit system ?

I was unable to save my project online so i saved it offline. Is there any way i can load the saved project and continue working on it?