Commodore VIC-20 - Page 2

INSTRUCTIONS
The VIC will calculate many of the factors which make up your loan or mortgage.
When you type RUN, the screen will clear, and display a title page and copyright notice. Hit any
key to start the program.
When the VIC asks you to input a number, it will draw a line, and place a checkerboard cursor
where the entry should go. You may type numbers up to 6 digits. The DELete key allows you to
correct or change your entry. Hit the RETURN key to enter the number.
The program will calculate the term of your loan, interest rate, the amount of money you can
borrow, OR your monthly payment, but onlyone of thematatime.All-ofthe factors below which
have an asterick (*) may be calculated. To make the VIC perform a calculation, enter a question
mark (?) instead of a number. If you don’t enter a question mark on any of the other inputs, the
VIC will calculate your monthly payment for you.
1)
The
program
will
ask
you
what
month
that
the
loan
starts.
Enter
a
number
from
1
(January)
to
12
(December).
Just
hit
the
RETURN
key
to
select the
default
of January.
2) Enter the year that the loan begins.
3)*
The
program
now
asks
for
the
term
of
the
loan.
Enter
this
number
in
years.
If
the
loan
is
to
run a
year
and
6
months
for
example,
enter
it
as
1.5
years.
4)
The
program
now
asks
you
for
the
number
of
payments
per
year.
Hit
return
to
accept
the
default
of
12;
otherwise
enter
your
number.
5)* Now enter your interest rate as a percentage.
6)* Enter amount of money you want to borrow.
7)*
The
monthly
payment
(if
you ask
for
12
payments
per
year)
will
be
calculated
and
displayed.
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The VIC now asks if your figures are OK. If your loan is what you want to see, typing a ‘y’ will
bring
you
to
the
amortization
table
section.
Typing
‘N’
will
allow
you
to
change
any
of
the
figures and recalculate your loan. The VIC will display the cursor on each of the boxes in turn.
Hit the RETURN key to accept the current number. Retype the number to change it.
Hitting
the
f2
function
key
(SHIFT
f1)
will
PRINT
out
the
screen
to
the
VIC-1515
GRAPHIC
PRINTER
(if
one
is
connected,
of course).
The amortization section will produce an amortization table for the length of the loan’s term, on
a year by year basis. The program will wait after each year for you to hit a key and tell itto go on.
The following special keys perform the functions shown:
f1 Gothrough the amortization process without waiting. This mode is useful to PRINT out the
table for the entire term of aloan to the printer without standing around waiting to hit a key.
f2 PRINT THE SCREEN
f3 Calculate the full term amortization process and give total interest without pausing to
display each year. i 5 n
f5 Askfora new interest rate (for variable interest rate loans. The loan table will be continued
with the new interest rate.
f7 Cancel the display of the TABLE and return to the CALCULATOR.
Note: to PRINT out the entire term of a loan without waiting to hit a key, just hit the f1 key after
the first table is listed on the screen. Then hit the f2 key to print out the table.
z commodore
COMPUTER