Instant Programming; Examp Le 1 - Sharp PC-1500 Instruction Manual

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INSTANT PROGRAMMING
(No Water Necessary)
This section is devoted exclusively to a select group of people (the authors included) whose
inquisitiveness ou t .. veighs their patience (and perhaps their common sense). For those of
you who absolutely must DO SOMETHING with. this miracle of modern electronics, we present
a simple programming exercise. (WARNING: The timid or faint.of.heart are instructed to
proceed to Chapter 1; Getting Acquainted, for a more thorough and leisurely introduction to the
SHARP PC· 1500).
Before you proceed, one further caution is in order. It is important to follow all of the listed
steps in the given order. Contrary to popular opinion. conlputers arc not "super·brains" and do
not have the average human's ability to "figure out" what you desire. The PC·1500 simply awaits
your instructions and performs them. Are you ready? Good, let's begin.
Example 1
First, find the key marked "ON" in the upper right corner of the keyboard. Pressing this key
will cause the sleeping electronic genie to awaken (don't expect a puff of smoke!}. The d isplay
portion of the computer should be similar
to
the illustration below:
I
. . .
..
:·
DEC
PRO
Press the
~
key (on the far right side) until the abbreviation PRO appears in the upper
port ion of the display. (If you press the key too many times. just press it again until the desired
result is obtained). The SHARP PC·1500 is ready to accept the series of instructions which make
up a computer program.
Enter the folloi.•Jing keystroke sequence:
rn rn m 1=1 rn
I
ENTER!
Notice that as you press the
l
ENTER!
key, the computer will modify what you have typed in.
The display should now look I ike this:
~ :A=1
OEG PRO
Note: Throughout this manual we will use
0
for the num ber zero, so that you can distinguish
between the letter
0
and the number
!l.
Continue by pressing the following keys. Do not be alarmed when each liine disappears as
you type its successor.
rnrnmmm
!IlCD i l l l ENTERI
rnrnm1 =1 mrnrn
I
ENTER!
m mm m rn oo rn
01..:11
ENTERf
At this point, your f irst program is compJete. Now you must tell the computer to "execute,"
or carry out, the instructions
it
contains. This p rocess is known as "running" the program and
is performed in the RUN mode (logical huh?) . Press the
~
button once again and the letters
PRO are replaced by the letters RUN at the top of the display.
One last step: type in the letters [ID [][]
OD
and
press ~ I E ~ N~ T~ER~)
8
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