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Easy.
A four-bit counter counts from 0 (D1-D4 all low) to 15 (D1-D4 all high). If you only want it to count 0, 2, 4, 6, 8, 10, 12 and 14--IOW all the numbers where D1 is low--just ground D1 and run the clock twice as fast as you normally would.
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How do you 4bit equals 1nibble?
In computing terms, the following units are used... 1mb = 1024kb 1kb = 1024 bytes 1 byte = 8 bits 4 bits = 1 nibble.
What is the answer to ab plus 4 plus a plus 4b?
There is no answer, because no question has been asked. It's only an expression.ab + 4 + a + 4bIt can be tidied up a bit:Collect the 'a' terms:a(b+1) + 4 + 4bCollect the '4' terms:a(b+1) + 4(1+b)Collect the (b+1) terms:(a+4) (b+1)That's a cleaner, more elegant way to write the same expression. But nothing has changed,no question is asked, and it's not looking for an answer or a solution.
