Adder and adder with propagating carry?

Question

Electronics

What is the difference between an adder and a propagating carry adder? Didn't really catch the difference.

a full adder
has a carry input Cin

Propagating Carry Adder An
N-bit adder adds 2 N-bit numbers (A and B)
plus an input carry Cin to produce an N-bit result S and an
output carry Cout. Such an adder is called a
carry propagate adder (CPA) because the
output carry of one bit goes to the next bit.

- but does the transfer occur both there and there with the help of the connection Cin and Cout ?

Answer 1

full adder is a single adder that adds two bits + a carry flag (actually 3 bits)
. A propagating carry adder is a multi-bit adder consisting of several "one-bit" full adders connected in a chain.