This program prints the alphabets in small and capital letters and integers from 0 to 9 using DOS interrupts. It initializes the data segment, loads the message addresses and prints them by iterating through the characters and calling interrupt 21h to output each character. It also prints newlines and returns after each alphabet/number block.

1. .MODEL SMALL
.STACK200H
.DATA
SM DB 'Printthe alphabetof
Small letter:- $'
CA DB 'Printthe alphabetof
Capital letter:- $'
INTEGER DB 'Printthe
integer(0-1):- $'
.CODE
MAIN PROC
MOV AX,@DATA
MOV DS,AX
LEA DX,SM
MOV AH,9
INT 21H
MOV CX,26
MOV DL,96
FIRST:
MOV AH,2
ADDDL,1
INT21H
LOOP FIRST
MOV DL,10
MOV AH,2
INT 21H
MOV DL,13
MOV AH,2
INT 21H
MOV AX,@DATA
MOV DS,AX
LEA DX,CA
MOV AH,9
INT 21H
MOV CX,26
MOV DL,64
FIRST1:
MOV AH,2
ADDDL,1
INT21H
LOOP FIRST1
MOV DL,10
MOV AH,2
INT 21H
MOV DL,13
MOV AH,2
INT 21H
MOV AX,@DATA
MOV DS,AX
LEA DX,INTEGER
MOV AH,9
INT 21H
MOV CX,10
MOV DL,47
FIRST2:
MOV AH,2
ADDDL,1
INT21H
LOOP FIRST2
MAIN ENDP
END MAIN