How does the add-on work in computers?

I was watching a video on computer architecture and a question came to my question. How does the add-in and basic operations work on computers? I mean, I know 2 + 2 = 4, but I don't know why? I just know that if I add 2 apples to another 2, then I see 4, but is there a possible demonstration of this?

My question is, how does a computer know that 2 + 2 = 4 at its most basic level? I know there are functions that add numbers, but at a basic level, how is this addition done?

I just want to know this to better understand how computers work as the simplest and most used operation done by a computer is the sum (I believe)


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2 answers

The "lowest" number uses only binary and physical electronic hardware that is used to perform the add 1 operation itself (where each bit in the number is represented on / off the physical line loop) - this is done by modifying the Adder circuit .

For "how" math works, see Two's Additions: Aritmetic , which is the most commonly used integer encoding. Conceptually, this arithmetic is similar to that of other bases such as base-10 / decimal taught in school.

1 Modern / conventional computers: there were mechanical computers (at least as "computers"), analog computers, and also on quantum computers, etc.



there are different adders and subtractors that are interconnected. .full adder, half adder for different ranges. all of these adders are arranged so that in the form o 'and 1' there is a binary bit code for each digit. its too easy .u will get it if u read it once



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