How to print a character in assembly level programing

Answer 1

.MODEL SMALL
.STACK 100H

.CODE
MAIN PROC
MOV AH, 2 ; display the character \'@\'.
MOV DL, \"@\"
INT 21H

MOV AH, 4CH ; return control to DOS
INT 21H
MAIN ENDP
END MAIN

Answer 2

Reply for kamlesh kumar code

Thanks for the code
But it only works for 16 bits
I need a program for 32 or 64 bit processor
Use eax, ebx .... Registers