ZXComputing_Dec-Jan_1986.pdf

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AN ARGUS SPECIALIST PUBLICATION
Dec 1985/Jan 1986
El.95
The Magazine For All Sinclair users
UIPMENT
-.
-
OFTWARE
SCREENMASTER
BRUSH UP ON
lYOUR GRAPHICS
MATCHPOINTT
COMPETmON
•• <<"
v - V
With More Editorial Pages Than Any Monthly Magazine
TECHNICAL DETAILS
3.5" 250 K disc diive
Double density disc interlace
Parallel printer interlace
Joystick interlace
Video monitor interlace
Peripheral through connector
Built-in power supply
Utilities on R O M including format a n d verily
R A M disc lacility
Random access liles lully supported
Connections lor second drive upgrade
Comprehensive user manual
Total: £l<X>.$5 inc. VAT
Discovery -
helps your
Spectrum
make all
the best
connections
for only
£199-95
In one simple step you can now transform your
Spectrum into a complete computer system.
Discovery from Opus Supplies is a sophisticated
computer nerve centre combining not just a
powerful disc drive a n d double density disc
interface but the most comprehensive range of
interfaces capable of running printers, monitors,
joysticks a n d other peripherals
No other system c a n offer your Spectrum so
many options - allowing you to play the very latest
games or providing facilities for serious business use.
Discovery's specification includes over £ 3 0 0 worth
of Spectrum peripherals a n d yet, at just £199.95, this
remarkable all-in-one system costs less than a disc
drive a n d interlace combination
Just connect Discovery to the rear ot your
Spectrum a n d you've started the transformation.
N o w you have immediate access to the very latest
Japanese 3V6" disc drive controlled via a powerful
a n d ingenious double density disc interlace The
unit's built-in power supply feeds both Discovery
a n d your computer allowing you to dispense with
your Sinclair power supply
The Opus system takes no user memory from
your computer giving you full compatability with
all tape-based software including programs
designed for use with microdrive a n d Discovery
even has its o w n R A M disc allowing you super fast
access times
N o w the choice is yours Connect up a joystick or
a printer to the built-in Discovery interfaces, linkup
to a video monitor or incorporate your o w n choice
of peripheral using the through connector.
Whether you choose Discovery for games or
business use you c a n rely on a complete range of
readily available disc software produced by many
of Britain's leading software companies, a n d our
price of £199.95 includes a n unbeatable two-year
free warranty a n d free delivery.
Discovery is available nationwide from Boots
a n d from all good computer stores across the
country. Ring us now on 0737-65080 for details of
your nearest dealer, or to order your Discovery.
Trade a n d export enquiries welcome.
'Price quoted xeiers to Discovery unit only
ALL EL
NTER
3RT
JOYSTICK
CONNECTOR
i
>
i
CM*
r
"Recommended" - Sinclair User Buyers'Guide
Opus.
)pu> Vlppln-S l.Uj
Opus Supplies Ltd,
55 Ormside Way,
Holmethorpe Industrial Estate,
Redhill, SURREY RH1 2LW.
Editor:
Ray Elder
Editorial Assistant:
Cliff Joseph
Group Editor:
Wendy J Palmer
Software Assistant:
John Gerard Donovan
Sales Executive:
Alice Robertson
Advertisement Manager:
Barry Bingham
Divisional Advertising Manager:
Chris Northam
Production Controller:
Sue Couchman
Publishing Director:
Peter Welham
Origination and design by Argus Design Ltd.,
Circus House, 26 Little Portland Street, London W I N 5AF.
Published by Argus Specialist Publications Ltd,
1 Golden Square, London W1R 3AB.
welcome
Ray says hello.
CONTENTS
101
Mark Fendrick reports
happenings in the States.
on
Sinclair
Across The Pond .
20M
Doing it with Style 43
Cliff is let loose on Saga's new graphics
pad.
Shoptalk
News, and assorted bits 'n pieces.
Getting into print
1
• j
ZX looks at two low cost, high quality
printers.
Light Screen
Designer
Competition
44
49
Toni Baker adds a few routines to the
Designer.
OL Delta Disk
Beta Plus
16
18
We examine Technology Research's
new disc interface for the QL
. .
The official, Sinclair
system for the Ql.
approved
Disk
We've got 20 copies of
Psion's QL
Matchpoint to give away!
.
. ,
then have a look at their interface
for the Spectrum.
Screenmaster
A handy
Spectrum.
graphics
utility
for
the
ASP FIGHTS SOFTWARE PIRACY
Much ha* bMn said and written In condemnation of
software piracy but tew have taken a positive stand
•gainst tt ASP Is among those few thai have taken
action to help curb the grave problem of home
copying of commercial software.
ASP has already taken steps to eliminate
advertisements In our magazines which relate to
tape duplication for piracy purposes. WhHe K is
appreciated that individuals may take 'back-up'
copies of their own programs. It should be noted that
h is
ILLEGAL
to copy commerclaly avalabie
software for other than personal use
Software piracy is costing the software Industry
huge sums of money which is detrimental to the
future development of the industry. It is in
everybody's interests to dramatically reduce the
level of software piracy primarily because firms need
funds raised from software sales to plough back Into
research and development of new products. This
meens that the standard of software products can
only Improve
ASP hopes our action will help combat this
serious problem In order to maintain and improve the
high standards of the UK software Industry We are
asking
you
to do the same by refraining from
duplicating or copying commercially available
software for anything other than personal use
wise Moves
spirogram
U.D.C. Bank
Graphics'85
32
36
39
40
The Perfect Key-
board
How computers deal with animation.
A routine for drawing pretty doodles.
50
An efficient way of storing banks of
UDGs.
One day. Uncle Clive will invent a
computer with a really good keyboard. In
the meantime though, here's some
advice on how to make one of your own.
Colin Christmas reviews some of the
graphics utilities that appeared during
the course of the year.
EM
Ray finds an excuse tor playing with
some musical add-ons.
ZX C O M P U T I N G D E C E M B E R / J A N U A R Y 1 9 8 5
4
ZX C o m p u t i n g is p u b l i s h e d hi m o n t h l y o n i h e f o u r t h Friday of the m o n t h D i s t r i b u t e d b y A r g u s Press Sales & D i s l r i b u t i o n Ltd, 1 2 18 Paul S t r e e t , L o n d o n
E C 2 A 4 J S 0 1 2 4 7 8 2 3 3 . Printed in the UK by G a m e t t Print, R o t h e r h a m a n d London.
The c o n t e n t s of this p u b l i c a t i o n i n c l u d i n g all articles, dnsigns. plans, d r a w i n g s a n d p r o g r a m s a n d all c o p y r i g h t and o t h e r i n t e l l e c t u a l property rights t h e r e i n
belong t o A r g u s Specialist Publications L t d All rights c o n f e r r e d by the Law of C o p y r i g h t and other intellectual p r o p e i t y l i g h t s arid by virtue of international
c o p y n q h t c o n v e n t i o n s are specifically i c s e r v e d t o A r g u s Specialist Publications Ltd. A n y r e p r o d u c t i o n requires the prioi w r i t t e n c o n s e n t of A r g u s Specialist
Publications Ltd.
A r g u s Specialist Publications L t d 1 9 8 5
Binary and Hex . . .54
The decimal versus hex debates rages
on!
Harwood's
Hypothesis
Some more book reviews.
74
Santa's Nightmare 88
A topical game for the Spectrum.
iQuicksoft
speakeasy
Make your Speccy talk!
.57
.58
.61
ZX81 Chatterbox .
76
We keep trying to get rid of him, but
Software Farm's Julian Chappie just
won't go away.
A quick look at some budget software.
into the Archive . .
78
David Nowotnik examines
Archive program.
the Psion
Mindplay
Our regular adventure column.
I we, the Jury . . . . .62
Software reviews.
I q l
software
Some new software for the QL.
81
Painters
cold!
Fun for greedy Spectrum owners.
92
9a
A machine code game for the ZX81
Poojan
There's trouble in the fjords. .
.
98
.106
112
Scrabbleboard
Puzzle time for ZX8 1 owners.
BUZZ!
Spectrum Lessons 82
The Sound of
Music
Mike Edmunds c h e c k s
educational software scene.
out
the
16K's worth of fun for the Spectrum.
Problem Page.. .115
Help!
66
. .66 • Safe Save Booster 84
A hardware project for soldering iron
buffs.
How to simulate Julie Andrews on the
Spectrum (no you foots,
I
said simulate!).
Club Corner
....116
Calling out around the world
5 ZX C O M P U T I N G D E C E M B E R / J A N U A R Y 1 9 8 5

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