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246 CounterThe 74HC393 is a dual 4 bit TTL counter the two sets can be combined and with some tricky wiring you will be able to make it count only even numbers, but I will use a PIC12f675 MCU a small 8 pin device and with some very easy programing you will be able to count odd or even numbers, for more info on the last contact me by E-mail or my website http://www.patenttrade.net

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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.

Q: How to Design a 4-bit counter that only counts even numbers?

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In computing terms, the following units are used... 1mb = 1024kb 1kb = 1024 bytes 1 byte = 8 bits 4 bits = 1 nibble.

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.

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4 bit is called a nibble

A 4bit parallel adder can be implemented by connecting four (4) full adders in parallel that will count from zero to fifteen.

1111 or 15 in decimal notation

nibble is in electronic equal 4 bit nibble=4bit

It;s a powerful 3gig 4bit memory search engine FTW!

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1024 bytes in one kilobyte 4bit = 1 byte Therefore on kilobit = 1024/4 = 256 bytes

In computing terms, the following units are used... 1mb = 1024kb 1kb = 1024 bytes 1 byte = 8 bits 4 bits = 1 nibble.

IPv4 has 32-bits classified into 4 bytes out of which each byte is divided into network or hosts. Thus, it can have any combination like 1 host, 3 networks or 2 host, 2networks etc.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 - Decimal 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 12 13 14 - Hexadecimal 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 10110 10111 11000 11001 100000 - Binary The highest number you can express in 4 bits ("nibble) is decimal -15 - Hex -F

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.