a E i - Commodore Is Awesome

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1 WELCOME M A I L B M W
software necessary to drive the RS232
unit is already within your Commodore's
kernal thus enabling sou to
program your own comms applications.
Using the RS232 unit also
enables you to use another printer, or
transfer fi les between another
computer in the same room.
CHET HIGHLIGHTS T
ABOUT COMPUNET T 9 i
LIUE WIRE D +
SOFTWARE P ARK T A -
CLUB 128
T+
ZAP CLUB
D+
THE JUNGLE
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INTEREST G ROUPS T i
SHOWCASE
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A number of packages rely on an
RS232 adaptor to be fitted. Examples
include Homepak (reviewed in the
June issue of Your (ommodore) and
Your Commodore*.s very own lilt.phone
Exchamfe which appeared in
the April and Max' issues. Many public
domain (free) comms packages rely on
an RS232 interface to be fitted, and if
you ever wish to use one of the more
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PART , NE 12 NEWS I
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I. D I R 1
expensive modems which are fi tted
With a D type connector then it's best
to use it with an RS232 interface.
3 I N D E X
system F has 4 to be used. I say
unfortunately
G A
because
M
the
E
telephone
system only allows analogue information
S (noise) to be transmitted over it.
Not 1only that, but 5 the information
must be sent one bit at a time in a
sequential mariner.
Part line.
CHET:
How about going to another room?
The pub Perhaps? t y p e — .
*enter pub
and then press return twice
To meet these requirements the
CHET has l e f t the room
micro needs to send and receive the
information one bit at a time. Looking
at the back S of a Commodore
64/Cl28/12SD you can see the user
port and the cartridge port. These two
interfaces arc used to plug in the
CMET calls you from pub
YRCBM:
partyline allows you to talk to
other CMETers.
modem which will convert the micros
digital signals to analogue information.
4.•
At this point it's worth pointing
out that here in the UK most comms
software packages are supplied in
cartridge form. The cartridge includes
some electronics and a cable that
connects to a modem. The cartridge is
all that is necessary to convert the
signals to and from the modem, and
the advantage of this method is that
the software is available when the
micro is powered up. The Aluslaug
cartridge from Y2 computing is an
example of this method.
In other countries - mainly in the
USA - an RS232 interface board is
widely used which plugs into the user
port. Basically. an RS232 interface is a
piece of electronics which sends and
receives information sequentially -
one bit at a time. Although using the
RS232 interface is considered to be
more cumbersome (it requires an additional
cable and software to be
loaded from tape or disk) it is more
flexible. This is because much of the
Preste 1 Mi c roc ompul i ng 4 5 6 a O p
Tour
Microcomputing 14 Help &
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3 4
Micronet 800
Viewfax 258
ClubSpot 610
Schools
Tel esoftware
5 What's New !
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SizznE-t
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G M
IllE.i VI SHADES Sweatshirt! KEY _9_
E B
M S t
*** •ress f f o r hel. •a•e * * *
e l A
l i a
r l i
YOUR ICOMMODORE
january 1987
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