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Beginner 16bit assembly, keyboard and display

Beginner 16bit assembly, keyboard and display

Beginner 16bit assembly, keyboard and display

(OP)
Hello, I am a beginner in assembly programming and would like to know if anyone out there could help me with an issue.  Currently I am writing a project to which I am drawing a calendar for 3 months.  I can easily make a calender on the screen for 1 month but for the other 2 months I run into a problem. Before I state my problem I have a small code segment below just to show a small sample of the type of code I am writing in this type of beginner course as to which that is how the code is supposed to come out as.  It is a 16bit program, I understand jmps, push, pop, loops.  I was only taught marginally how to use int 10h which consisted of that it just needs to be there for it to work.  I was not taught anything about keyboard interaction which the proffessor expects us to magically figure out and after trying and trying I really am stumped.
My question is if anyone could help me write a small program, sort of like how I have below which displays the letter B on the top left hand corner of the dos box, how to save this "page" into memory and use keyboard interaction like say the N key to go foward or the B key to go backwards... say the next page has a the letter N on it for example.  I know it is a tall order but I could terribly use an example if anyone can help.  Thanks in advance!

CODE

.model small
.stack 200h
.386
cseg segment 'code'
assume cs:cseg, ds:cseg
    start:
            mov ah,0
            mov bh,0
            int 10h
            mov AX, 0B800h
            mov ES,AX
            mov byte ptr ES:[2], 'B'        
            mov ah,4ch
            int 21h
    cseg ends
        end start

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