Vtech PreComputer Power Pad Plus User Manual - Page 36

Getting Started

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THE LCD SCREEN The PRECOMPUTER POWER PAD™ PLUS learning unit uses a Liquid Crystal Display (LCD) screen. Each line will display 20 characters at a time. The Left Arrow key and Right Arrow key are used to scroll the 20 character display window left or right, respectively. In BASIC, pressing the ENTER key allows you to see the next printed statement that your program is displaying. You need to do this so the output doesn't scroll off the end of the line. GETTING STARTED This activity lets you type in your own programs and run them. Follow these simple steps: 1) Turn on PRECOMPUTER POWER PAD™ PLUS. 2) Choose the BASIC activity from the Membrane Activity Selector. There are two modes available; Command and Run. Type in this program: 10 PRINT "HI THERE" press ENTER This is a simple way of writing a program. Type in the program lines and remember to press the ENTER key. Each line starts with a number and is followed by a statement. PRECOMPUTER POWER PAD™ PLUS stores the line with the other lines into memory. Later you can execute the program by typing the command, RUN. Remember to press the ENTER key after typing RUN. The results appearing on the LCD screen are: HI THERE. There is a short cut. Enter the following (no line number in front): PRINT "HI THERE" press ENTER This time PRINT was used as a command and the results appeared immediately on the display after the ENTER key was pressed. The computer executes the command right away, without waiting for you to type RUN. When you do this, the statements are not saved for future re-use. They are executed immediately and discarded. This is not recommended for creating programs but highly recommended for use as a calculator. The following are some additional commands to be used: NEW This command clears the memory of any BASIC statements that have been previously entered. LIST This command displays each line of your program starting with the lowest line number. Each time you press ENTER, the next lines are displayed. You can stop this by pressing the SHIFT and BREAK keys. If you enter the command with a line number after the word, i.e., LIST 50, PRECOMPUTER POWER PAD™ PLUS will list the statement at line 50. 32

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32
THE LCD SCREEN
The
PRECOMPUTER POWER PAD™ PLUS
learning unit uses a Liquid Crystal
Display (LCD) screen.
Each line will display 20 characters at a time.
The Left Arrow
key and Right Arrow key are used to scroll the 20 character display window left or
right, respectively.
In
BASIC
, pressing the
ENTER
key allows you to see the next printed statement
that your program is displaying.
You need to do this so the output doesn’t scroll
off the end of the line.
GETTING STARTED
This activity lets you type in your own programs and run them.
Follow these simple steps:
1) Turn on
PRECOMPUTER POWER PAD™ PLUS
.
2) Choose the
BASIC
activity from the Membrane Activity Selector.
There are two modes available;
Command
and
Run
.
Type in this program
:
10
PRINT “HI THERE”
press
ENTER
This is a simple way of writing a program.
Type in the program lines and remember to
press the
ENTER
key. Each line starts with a number and is followed by a statement.
PRECOMPUTER
POWER PAD™ PLUS
stores the line with the other lines into memory.
Later you can execute the program by typing the command,
RUN
.
Remember to press
the
ENTER
key after typing
RUN
. The results appearing on the LCD screen are:
HI THERE
.
There is a short cut.
Enter the following (no line number in front)
:
PRINT “HI THERE”
press
ENTER
This time
PRINT
was used as a command and the results appeared immediately on the
display after the
ENTER
key was pressed.
The computer executes the command right
away, without waiting for you to type
RUN
. When you do this, the statements are not
saved for future re-use.
They are executed immediately and discarded.
This is not
recommended for creating programs but highly recommended for use as a calculator.
The following are some additional commands to be used:
NEW
This command clears the memory of any
BASIC
statements that have been previously
entered.
LIST
This command displays each line of your program starting with the lowest line number.
Each time you press
ENTER
, the next lines are displayed.
You can stop this by pressing
the
SHIFT
and
BREAK
keys.
If you enter the command with a line number after the word,
i.e., LIST 50,
PRECOMPUTER POWER PAD™ PLUS
will list the statement at line 50.