DOS command, how to calculate, computers are all kinds of transistors, how to understand DOS command?

DOS command is actually a program or a piece of code, which contains many instructions, and each instruction contains many simple instructions that the machine can recognize. A copy instruction requires hundreds of machine instructions to complete the operation.

If you want to know these specific processes, you need to read more about them.

For example:

Computers should do addition, subtraction, multiplication and division;

12 bit code instruction code

0000000000 1 stands for addition.

10000000000 means subtraction.

0000000 10000 means multiplication.

10000010001stands for division.

8-bit code number

0000000000 means 0.

00000000 1 means1.

000000 10 means 2.

000000 1 1 stands for 3.

00000 100 means 4.

00000 10 1 stands for 5.

00000 1 10 means 6.

00000 1 1 1 means 7.

Wait, the quantity is too large. What should we do? Lengthening, similar to: 000000000001,and so on.

We want the computer to realize the multiplication of 2 * 6, which is expressed in the computer as

0000000 10000 000000 10 00000 1 10

After receiving this instruction, the computer will use registers to perform operations, use other functional instructions to return results, and so on.