Sharp PC-1500A Instruction Manual page 12

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Notice that pressing the I s•OFri key followed by a key which has another character inscribed
above it, will enter the uppermost character. The shift key permits two character s to share the
same button, and is sometimes called the "second fu nction" key. Thus, in the fi rst line of ou r
program (line 10 abovel , a
l ••• nl keystroke followed
by a
m
causes a
CD
(semi coion)
character to be entered. The e ntire line is stored in the computer as:
DCC PRO
•
In this manual we will illustrate the selection of the second function character with the sh ift
key and the character desired. For example, the line numbered 10 above will be shown as:
ITl
m co
(J[)
m
CllJ CD 1 ... ,,, I
c:J
CD CD CD
Ci]
(•••«I
CD
com
ill lSHorT!(IJ (SH1 n l
c::J
ISHIFrl GJ
m
I ENTERI
Complete the entry of our second program with t he followi ng keystrokes:
m m co m m1 ••••' 1 rn 1=1mmrnrnrnrnrn
IENTER I
rn oo
CD
rn m co 1 = 1 m rn rn m
1ENTER 1
rnoom
w CllJ!Ilill
CO !E[!J
wco rn
co
IENreRI
mm
OD ill
rn
CD
co
l eNTER
1
rn rn rn
ill
m m rn
I
•••n l
om
OD CID I
eNreR I
Our second program is no\v stored in the PC· 1500A's memory. Do you remember what must be
done next ? If you said " Run ihe program" you are well on the way to p rogramming competency.
Retu rn to the RUN mode (HINT: use the MODE key) and tYP• in the word RUN. Press
lt:Nru l
to
begin "execution" (another word for runn ing) of
our
second program.
Is the compUter interrogating you in the following manner?
(If
not. return to the PROgram
mode and re·check you r tYPing) .
.
..
KU H
,-. I ...,E.-·
-.
"
"
·-
.__
·-
Good show! Dur p rogram is asking the user {you) for information necessary to perform the
task that wn, as programmeri, instructed it to perform. Recall the first line of ou r BASIC program
(which you so kindly typed in for us) ;
The instructions within this line are currently being followed by the computer. The result is
that the computer is waiting for you to "input" (type in) some information.
This program will pri nt a list o f n umbers and their squares {the number multiplied by itself).
First, however, it asks the user how many numbers and squares to print (LIST SI ZE?). The user
(you again) respond's by tYPing a number and pressing (you guessed it l)
l••n•I.
Type
rn
and p ress
IENTER I.
10
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