Answer the following question for the logical gate operates

Question

Answer the following question for the logical gate operates

1) Which Boolean logical gate operates only on one input?
2) Given that we need an opcode field that will identify the operation selected and we need to be able to specify 256 unique operations, how many bits do we need to make our opcode field?
3) What are the differences between a half adder, a full adder, and a ripple carry adder?
4) Describe how page swapping works.

Explanation

1) Boolean logical gate operates only on one input and that is NOT-Gate. In NOT gate there is one input and one output. And the output is the complement of the input.
The truth table for the NOR logic gate is:

2) There are different-different maximum 256 unique operations. And to represent these 256 operations, there is a need for an 8-bit number with a combination from 0-255. So that they have a different value in binary. 0 has a binary value of 0000 0000 and the binary value of 255 is 1111 1111. Also to represent opcode in hexadecimal, there is a requirement of a maximum of 2 bits 00 to FF.

3) Half adder is a combination logic circuit. So that there is an addition of two numbers with a one-bit input. And half adder requires two inputs. Whereas full adder is a combinational circuit that performs the addition of 3 one-bit information and thus and it requires 3 inputs. A ripple carries adder is a series of full adders. So that the previous adder is then passed to the next adder in the form of input. And each of them carries bits gets rippled to the next adder.

4) Swapping is a process in which there is a proper use of memory. So that in that there is a page swapping. So that there is the use of secondary memory. The main memory is swapped to the secondary memory. Though it is temporary. So this all happens to allow the maim memory to perform the other operations. This all allows the use of an efficient page.

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