Fred Nachbaur

Fred was an early and enthusiastic supporter of the Sinclair ZX81.

His first company, SyncWare Co., sold battery-backup units and software for the ZX81. He later founded SyncWare News, a newsletter that focused on technical aspects of Timex/Sinclair computers.

After handing SyncWare News off to others, he founded Silicon Mountain Computers to publish his programs for the ZX81. Many Silicon Mountain programs built on the hard work of Gregory C. Harder, Peter McMullin, Harvey Taylor, John Oliger, and Wilf Rigter. Wilf’s “WRX16” true hi-res system underpinned many of the programs.

In the late 1980s, Fred took an extended hiatus from computers in general, focusing his efforts on other areas, including his music. When he “returned” to computers, he developed software for musicians and composers. Fred also designed theremins and tube amplifiers as a hobby.

Fred passed away at 53, in 2004, after a battle with cancer.

Articles (169)

TitleAuthor(s)PublicationDate
2068 Cassette Connection, Part II
Hints and schematics for improving loading.
ZX-AppealSeptember 1988
2068 Cassette Connection, Part IILISTing NewsletterOctober 1990
2068 Cassette Connection: Part II: Loading Tips
In the last Issue, I recommended removal of a couple capacitors in the SAVE circuitry of the TS2068. This provides...
SyncWare NewsMay-Jun 1985
8K ROM Upgrade
By now you should have a pretty good idea of what I’ve been doing; so what’s ol’ Tom been up...
Fred NachbaurSyncWare News1984
A ‘CAVEMAN’ Wordprocessor
So, now that we can do screen dumps and engage the various printer control functions, how about a word processor?...
Fred NachbaurSyncWare News1984
A Letter From Fred Nachbaur (concerning the PC8300 “Timex Clone”)
Documents some of the differences between the TS1000 and PC8300.
Time Designs MagazineJuly/August 1988
A NIM Game for 2K
An important consideration in programming personal computers is memory economy. Unlike the big main-frames that offer virtually unlimited storage, you...
Fred NachbaurSyncWare News1984
A Touch of ClazxZX-AppealFebruary 1989
A Video Reverse Board
The easiest way to connect your computer to a monitor is to simply take the composite video signal from pin...
Fred NachbaurSyncWare News1984
A ZX-TERM*80 QuirkNite-Times NewsSeptember - October 1988
ABC-123 Part 2
Finishes the “ABC/123” program for the TS 1000 introduced in prior issue.
SyncWare NewsMarch-April 1987
ABC-123: Educational Games for the ZX81
The “ABC/123” program is quite long, so we are breaking it into two parts. The result of this first installment...
SyncWare NewsJan-Feb 1987
Across the Pond
Look back on 1986. Introduction of QL. Second Midwest computer Fest. QL Talker, a speech synthesizer that connects to the...
ZX ComputingFebruary 1987
And in This Corner
Tom Woods, the venerable publisher of SyncWare News, will be stepping down from that post іп the near future. An...
SyncWare NewsSeptember/October 1987
Another Video Primer
Definitions of common terms used to describe video signals.
SyncWare NewsMarch-April 1987
Are We Not Hackers?
There has been a lot of press over the last year about “hackers,” referring to the dishonest minority of computer...
SyncWare NewsMay-June 1986
August MHTSUG Meeting
Last month’s meeting started at 2 PM as scheduled. The monthly newsletters received were read and reviewed. A great package...
Timex Sinclair Users Group Mile High Chapter NewsletterSeptember 1991
Basic Topics
Is It A Number? By Fred Nachbaur The following routine contains a trap to insure that you enter a number....
SyncWare NewsSept-Oct 1984
Battery Back-up The EI Cheapo BBU
The circuit shown is the simplest scheme possible to provide power-down protection for your ZX/TS. You just need a battery...
Fred NachbaurSyncWare News1984
Best of PCW Assembler Routines
Review of the book published by Personal Computer World. Includes machine language routines for the Z80 CPU.
SyncWare NewsMarch-April 1987
Bits & BytesThe PlotterJuly 1988
Bits & PiecesZX-AppealJune 1988
Bits & PiecesZX-AppealMarch - April 1989
Bits & PiecesZX-AppealSeptember 1987
Bits & PiecesZX-AppealSummer 1988
Bits and Pieces
MAXWELL DEAL FALLS THROUGH In a surprising turn of events, the Robert Maxwell plan to buy-out Sinclair Research has back-fired....
Time Designs MagazineSeptember/October 1985
Bits and PiecesVISTA Newsletter
Bold as BrazxZX-AppealJanuary 1989
Boy, This Z is HOT!
You may have heard of HOT Z and its decendent, HOT Z-II, and wondered why you haven’t seen any reviews...
Fred NachbaurSyncWare News1984
Bug Alert: One-chip NVM
The “One-chip NVM” in SWN 4:1 shows a minor discrepancy between the schematic (Fig. 3) and the pictorials and instructions.
SyncWare NewsJan-Feb 1987
Built In BBU
Yes, folks, there’s plenty of room left in even your tiny “stock” case to include re-chargeable BBU INSIDE THE COMPUTER....
Fred NachbaurSyncWare News1984
Byte Back at the Real World
Finally! A product that is easy and Straightforward to review. I’m speaking of the BB-1 control module from Byte-Back, Rt....
Fred NachbaurSyncWare News1984
Change RAMTOP Without NEW
You may have wanted to change RAMTOP without wiping out what you have in memory. It is not enough to...
Fred NachbaurSyncWare News1984
Changes Ahead for Syncware News
Fred Nachbaur’s publication will continue on to volume 2, but shift locations, upgrade its format, take on additional personnel, publish...
SyntaxApril 1984
Circuit Board Hint
After building circuit boards from artwork or kits, it’s a good idea to clean all the rosin from the board....
SyncWare NewsJul-Aug 1986
Clear That Screen!
The purpose of this article is to present some alternatives to this command, and in this process maybe show some...
SyncWare NewsMar-Apr 1985
Composite Color on the QLLISTing NewsletterOctober 1989
Controlling Your Printer
In this series of articles, I’ll try to give you some information to help you use your printer system “to...
Fred NachbaurSyncWare News1984
ContsentrationTime Designs MagazineMay/June 1986
Custom Keyboard Tip
Did you hook up one of those TI keyboards to your ZX81/TS1000? Don’t you wish it had all the Sinclair...
SyncWare NewsMay-June 1986
Delphic 2K Toolkit, Tape Version
Had it been possible for SWN to adhere to its originally intended publication schedule, you would have seen a review...
Fred NachbaurSyncWare News1984
Direct Video Mod
Here’s a video reverse/clean-up mod that started as W4MHQ’s “Direct Video Output” in QZX VOL.1 NO. 2. Like W4MHQ’s, this...
Fred NachbaurQZXJune 1983
Dump that Screen!
If you took the trouble to enter an alternate conversion table as described in the last issue, you already have...
Fred NachbaurSyncWare News1984
Dungeon of Ymir
Dungeon of Yair is a multi-level maze adventure game written completely in machine code. Ymir requires 24K of RAM, and...
ZX-AppealSummer 1987
For Your Support
Column announcing hardware, software for Timex/Sinclair owners. Products from Bruce Taylor, Fred Nachbaur, Tom Woods, John Oliger, Jack Donahy, 21st...
SyncWare NewsNov-Dec 1985
For Your Support
Product announcements from Robert Fischer, UAS, Tom Laffin, Knighted Computers, RAMEX, Ben Johnson, Fred Nachbaur, Tom Bent, Jim Houston Enterprises,...
SyncWare NewsNov-Dec 1984
For Your Support
Product announcements from G. Russell Electronics, Byte-Back, Variety Sales, Chia-Chi Chao, Larken Electronics, Sams, Fred Nachbaur, Lemke Software Development and...
SyncWare NewsMay-June 1986
For Your Support
Product announcements from Softaid, TEJ Computer Products, G. Russell Electronics, Integrated Data Systems, Sharp’s, Richard Booth, J. Keene, Pratt Programs,...
SyncWare NewsJul-Aug 1985
For Your Support
Product announcements from John Oliger Co., NovelSoft, Willcocks Research Consultants, Grey & Clifford Computer Products, Knighted Computers, G. Russell Electronics,...
SyncWare NewsSept-Oct 1986
For Your Support
Product announcements from Chia-Chi Chao, NovelSoft, Willcocks Research Consultants, Grey & Clifford Computer Products, Knighted Computers, Fred Nachbaur/Silicon Mountain Computers,...
SyncWare NewsNov-Dec 1986
For Your Support
Product announcements from Fred Nachbaur, John Oliger Co., Grey & Clifford Computer Products, Larken Electronics, Chia-Chi Chao, Robert Fischer, Bill...
SyncWare NewsJan-Feb 1987
For Your Support
Hardware and software offerings from Chia-Chi Chao, Mike Trivisonno, Jack Donahy, Fred Nachbaur, Tim Worcester, Games to Learn By, Kraig...
SyncWare NewsSeptember/October 1985
For Your Support
Products from Allan Wolach, C. W. Associates, Chia-Chi Chao, Don Dailey, Ed Grey, Fred Nachbaur, G. Russell Electronics, Newpower Inc.,...
SyncWare NewsJan-Feb 1986
For Your Support
Hardware and software announcements from many vendors.
SyncWare NewsMar-Apr 1986
Forth: Language Unique
I’m sure that many of you have heard rumblings or seen ads for a new computer language called “FORTH,” and...
Fred NachbaurSyncWare News1984
Fred’s Soapbox
All too often I hear comments like “Since I got my TS2068, the TS1000’s been sitting on the shelf, awaiting...
SyncWare NewsMay-June 1986
From the Editor…
As with Fred, my entry into computers came about three years ago, but my reasons were slightly different. A change...
Tom BentSyncWare News1984
From The Editor’s Cluttered Desk
Themed issues; where to get your computer fixed; computer in business; Maryland doctor uses ZX81; Brazil’s TK 90X; Fred Nachbaur,...
Time Designs MagazineSeptember/October 1987
From the Rumor Mill
Fred Nachbaur is reportedly developing a Timex/Sinclair clone that will incorporate many improvements.
Time Designs MagazineMarch/April 1988
Getting Into A BIG Printer
I won’t spend much time or space extolling the virtues of a “big” printer for your ZX/TS computer. Suffice it...
Fred NachbaurSyncWare News1984
Good News: “THE NEWS” Lives!
Shortly after SWN 1:4 was mailed, letters started coming in from concerned readers, encouraging us to continue publishing. It is...
Fred NachbaurSyncWare News1984
Greyplot Dual Display Technique
Unleash the power of grey graphics characters for data plotting, with the same vertical resolution as PLOT commands. Discover how...
Fred NachbaurSyncWare News1984
Halt Right There!
You ZX/TS users have been told, and told again, “Don’t mess with the interrupts” and “Never use the HALT command.”...
SyncWare NewsJul-Aug 1986
Hardware Projects
When it comes right down to it, there’s not much the ZX/TS computers can be criticized for. The commonest complaints...
Fred NachbaurSyncWare News1984
Hatch Your Own… Mickey-Mouse Graphics
Suggestions for taking photos of TV screens with an SLR.
Time Designs MagazineMarch/April 1988
High-Res Blackjack for the ZX81/TS1000/TS1500
High resolution graphics version of Blackjack using Silicon Mountain’s SCRAM Hi*Res Extended Basic and non-volatile RAM board.
Time Designs MagazineMay/June 1987
Hot Z-Il Fix
The 16K Hot-Z II has a minor “bug” which causes the program to wipe the bytes from 8000h-8020h when you...
Fred NachbaurSyncWare News1984
In the MailbagVISTA Newsletter
Intro to I/O
Here are a couple articles that introduce you to control applications for the T/S computers (ZX81, TS1000, TS1500) with a...
Fred NachbaurSyncWare News1984
Mandelplot: Mathematical Printer Art
The purpose for writing this article is to show you how easily you can get beautiful math-art creations using a...
SyncWare NewsMay-June 1986
Math Development Program
Unravel the mystery of Simultaneous Linear Equations, understand their practical applications, and see how these mathematical systems can unlock everyday...
Fred Nachbaur
Tom Bent
SyncWare News1984
Math Development Program, Part 2
Putting it to Work Ok, Ok, I can hear it now; it’s just another simultaneous equation program. Anybody can write...
Fred Nachbaur
Tom Bent
SyncWare News1984
Math Development Program, Part 3
Explore the fascinating world of integration, as we delve into the legacy of Gauss and Newton, and the modern techniques...
Fred Nachbaur
Tom Bent
SyncWare News1984
Math Development Program, Part 4
Explore the fascinating world of integration, as we delve into the legacy of Gauss and Newton, and the modern techniques...
Fred Nachbaur
Tom Bent
SyncWare NewsJune 1983 – June 1984
MEMOTEXT Oddities
The Memotech WP “Memotext” is the best one I’ve seen for the ZX81/TS1000 to date (and as of Thanksgiving, 1984,...
Fred NachbaurSyncWare News1984
Minotaur
This active-animation program displays a full-screen picture of a maze, and shows your progress through it to its only exit....
SYNCMarch/April 1983
More on the PC8300ZX-AppealOctober - November 1987
Nachbaur Rumors
Anyone who has and still uses а ZX81, T/S 1000, T/S 1500, or а PC8300 clone knows about Fred Nachbaur....
David BaulchThe Data ExpansionMay 1988
New Product
Check out the new toolkit by Pete Hoffman, Delphic Enterprises, Box 72205, Corpus Christie, 78472. They supply EPROMs for $18,...
Fred NachbaurQZXMarch 1984
Newsletter Notes
Fred Nachbaur is getting out of commercial end of things TS1000. John McMichael has connected an Okimate 20 to his...
Sincus NewsJuly/August 1988
Nissim’s Marvel
I’ll start out the software part of the reviews with a package you may have seen the ad for and...
Fred NachbaurSyncWare News1984
Not A Bug
But annoying none-the-less. Our printer got the listings for “ABC/123” nice and dark, but pushed the inverse graphics into the...
Fred Nachbaur
Gregory Harder
SyncWare NewsMay/June 1987
Numbers Are No No’s
One of the big advantages of the T/S machine is also one of its disadvantages; its five-byte floating point binary...
Fred NachbaurSyncWare News1984
Odds, Ends, Etc. #2
“Startext,” an on-line service offered by the Ft. Worth Star Telegram, selling unused time on their Vax. T.S. Services newsletter...
T-S HorizonsFebruary/March 1985
Of Flags and Strings and Other Things
Well, folks, we were scooped by James Grosjean in SYNC magazine on the planned subject for this issue. So I’ll...
Fred NachbaurSyncWare News1984
Off the Wall
Fred Nachbaur responds to criticisms about the magazine’s prior contest in “song” form, parodying Dire Straits’ Money for Nothing.
SyncWare NewsJan-Feb 1986
Off The Wall: How Many Combinations?
How big is 64 K, really? Have you ever wondered exactly how many possible combinations there are in 65536 memory...
SyncWare NewsMay-Jun 1985
One Chip Mods
Modify memory-mapped Byte-Back modules to work better with an expanded TS1000.
SyncWare NewsNov-Dec 1985
One Chip Mods: Recycle that 16K RAM pack
Instructions on how to alter a standard 16K RAM pack to work as 2 8K banks in the 8-16K region...
SyncWare NewsJan-Feb 1986
One-Chip Mods: Built-in NVM
8K RAM mapped to 8-16K region, internal to the computer. Compatible with Hunter board.
ZX-AppealJuly/August 1986
PC8300 – Magic or MadnessZX-AppealSeptember 1987
PC8300: ZX81 Clone Is It Magic or Madness?
You may have seen ads, or heard about a “Timex 1000 clone” called the PC8300, available from a company in...
Fred NachbaurSyncWare NewsJuly/August 1987
Polar-Rectangular Conversion
This program converts between polar notation (magnitude and angle) and rectangular (or “Cartesian”) notation (“X” and “Y” values) of vector...
Fred NachbaurSyncWare News1984
Poor-Man’s EPROM Eraser
Recommendations for erasing EPROMs with an ozone or germ lamp.
SyncWare NewsMay-June 1986
Products in Review
First, here is a long overdue review of Fred Nachbaur’s SyncWare News. (See his previous contributions to QZX.) Since he...
Alex Burr (K5XY)QZXOctober 1983
Program Name Reader
Prints name and loading time of ZX81 files.
ZX-AppealMay 1989
Programming SRAM HI*RES, Part II
At this point, let’s give credit where credit is due. As you may know, SRAM HI*RES Extended BASIC is a...
Time Designs MagazineJuly/August 1987
Quick Mode for 1500-1000
We leave the wonderful world of true hi-res for a moment, to show you just one of any number of...
Fred NachbaurSyncWare NewsNovember/December 1987
READer INPUT
More controversy over anti-abortion ad in #17.
T-S HorizonsJuly-August 1986
Reader Profile: Fred NachbaurZX-AppealFebruary - March 1988
Revised Schematic of Digi-DubberSinc-LinkSeptember/October 1989
Rock Crush
Given the paucity of new software for the ZX81/TS1000, it is indeed heartening to discover that there are still at...
Fred NachbaurSyncWare NewsNovember/December 1987
Running On 64K
Here’s that article, promised in issue 1:3, to help get new 64K RAM owners off the ground. Since the Z80...
Fred NachbaurSyncWare News1984
Share-Ware: The T/S Lifeline?
Software has always been a difficult commodity to market and distribute. Users want new software, they want support for their...
SyncWare News
SharewareZX-AppealDecember 1987
Shareware – Can It Work?ZX-AppealMay 1988
Sinclair Survival Column
As we end our third year of this column, we go back to our roots and have a look at...
Mark FendrickComputer ShopperMay 1987
Software Compatible Joystick
It’s a snap to connect an Atari-type joystick to the ZX81/TS1000; all it takes is direct connection to the keyboard...
Fred NachbaurSyncWare News1984
Straight Line Subroutine
This subroutine draws an unbroken line segment between pixel (X1,Y1) and (X2,Y2). It is based on the equation for a...
Fred NachbaurSyncWare News1984
Support for ZX-Term*80ZX-AppealDecember 1987
Support for ZX-Term*80SLUG NewsletterJanuary 1988
Syncware News Reorganizes to Continue
Thomas B. Woods will take over publication of SyncWare News as volume 2 begins. The final arrangements call for the...
SyntaxAugust 1984
SYNCWARS – An Invasion
Video game.
SQ Syntax QuarterlySpring 1983
Syncwars-16
Improved version of SYNCWARS game. Runs in SLOW mode and shows more spectacular displays. Otherwise, the program plays just as...
SyntaxNovember 1983
Telecomm Update
The ZX81/TS1000 family has traditionally been relegated to the “backwaters” of various BBS’s and communications services. Not any more! We...
Fred NachbaurSyncWare NewsJanuary/February 1988
Telecommunication NewsPete FischerCATS NewsletterAugust 1987
The “Sincfont”ZX-AppealJune 1989
The Amazing Digi-DubberSinc-LinkJuly/August 1989
The American QL: A Peek InsideLISTing NewsletterOctober 1989
The Cassette Connection
In Volume 1, I ran a series on improving cassette reliability on the ZX81. Well, now that the TS2068 has...
SyncWare NewsJan-Feb 1985
The Cassette ConnectionZX-AppealSummer 1988
The Cassette Connection
With this issue, we start a “mini-series” on improving cassette reliability. I’m sure you’ll agree that unreliable LOADs are perhaps...
Fred NachbaurSyncWare News1984
The Custom Cooler
It’s sad but true that the ZX81/TS1000 machines tend to be sensitive to overheating in the summer. With a solderless...
Fred NachbaurSyncWare News1984
The Custom T/S
Let’s start our series on T/S reliability improvement with some simple but effective ways to make your basic machine virtually...
Fred NachbaurSyncWare News1984
The Re-chargeable BBU
Now we’ll make some changes and additions to “El Cheapo BBU” that will allow us to use rechargeable “NiCad” cells...
Fred NachbaurSyncWare News1984
The SyncWare News Story
Three years ago, I received my first ZX81 computer kit in the mail. Only three short years ago, I considered...
Fred NachbaurSyncWare News1984
The Ultimate Orphan?
Suggestion to adopt CP/M systems for pennies on the dollar as upgrade path.
ZX-AppealFebruary - March 1988
The Ultimate Orphan?
How would you like a dirt-cheap computer system that has a real keyboard, high-res (256×192) or very-high-res (640×256) screen display,...
Fred NachbaurThe Data ExpansionApril 1988
The ZX Breadboarder: A Proportional Joystick InterfaceZX-AppealMarch - April 1989
The ZX Breadboarder: The Digi-DubberZX-AppealMay 1989
Tidbits from Fred NachbaurTriangle Sinclair Users Group
Timex TidbitsNite-Times NewsNovember 1987
Timex TidbitsNite-Times NewsSeptember 1987
Timex TidbitsNite-Times NewsOctober 1987
Timex TidbitsNite-Times NewsJuly 1988
TMS9918A Video Upgrade For The TS1000
As can be expected with any major hardware upgrade, there are a few conflicts when the Oliger video system is...
SyncWare NewsJul-Aug 1986
Translations: Memotext in RAM
Here is how to make a copy of the “Memotext” word-processor, which you can save to tape and reload later...
SyncWare NewsNov-Dec 1984
Translations: Memotext to ZX Pro/File
If you have a Memotext word-processor module and 64K RAM, you undoubtedly have already made use of its powerful “text”...
SyncWare NewsSept-Oct 1984
TS1000 Move It!
One of the nice features of the Z80 is that it has a number of commands which actually are a...
SyncWare NewsMay-Jun 1985
TS1500 Is More Than Meets the Eye
Demonstration program from Greg Harder how the TS1500 is improved over the 1000, allowing for software-only high-resolution graphics.
SyncWare NewsJan-Feb 1986
TS1500 Video Topics
How would you like reverse video on your TV screen when using your TS1500? Not only is it possible, but...
SyncWare NewsMay-June 1986
Two Problem-Solving Circuits: Preregulator and Battery Backup
Add a voltage regulator to your Sinclair power supply; build a batter backup unit.
SyntaxAugust 1982
TYB*BYTS
USE THE BEEPER The next time you have a program that takes a long time to run (or to SAVE/LOAD),...
John (Basil) Wentworth
Kent Cook
Fred Nachbaur
SyncWare NewsJanuary/February 1988
TYD BYTS
Tips on adapting Fred Nachbaur’s universal printer driver to the two types (B and C) of the Tasman CPI (Centronics...
SyncWare NewsMay/June 1988
Tyd-Bits: Fun with Hot-Z II
Hot Z II uses a fascinating “trick” for getting back into itself if you should stumble into the error restart,...
SyncWare NewsJul-Aug 1986
Un-interruptable Power Supply
Onward to replacing our good old wall-plug power supply with something more substantial. You have several ways to go, and...
Fred NachbaurSyncWare News1984
Universal Printer Driver
In Volume 1, I ran a series on getting the most out of your ZX/TS with full-size printer and Memotech...
SyncWare NewsJul-Aug 1985
Upgrade to Hi-res ChessFred NachbaurSyncWare NewsMay/June 1987
Uploading Big Memotext FilesZX-AppealSummer 1988
Using the PC8300 with 64K RAM PacksZX-AppealSummer 1988
VDAQ – A Data Acquisition Development Program
Here is a program that demonstrates a simple yet effective way to get analog information (data) into your ZX81/TS1000/TS1500 computer,...
Fred NachbaurSyncWare News1984
Veni, Vidi Video, Vici
So far in “The Custom T/S,” I’ve shown you how to overcome problems with all three of the little inline...
Fred NachbaurSyncWare News1984
Votem Cassette Controller
If you have a VOTEM, or if this article talks you into buying one, here is a simple modification which...
Fred NachbaurSyncWare News1984
What, We Worry?
For those of you who thought that we were just a couple of non-existent characters beyond your end-of-line marker, we...
SyncWare NewsSeptember/October 1985
Wheatstone Bridge Circuit Using S.E. in Electronics
Unlocking the complexities of electrical circuits, this analysis uses simultaneous equations to untangle the mysterious world of currents and resistances...
Fred NachbaurSyncWare News1984
Where Goest Fred?
Fred Nachbaur accepted a position with a firm in Ottawa.
Time Designs MagazineJuly/August 1988
WRx16 RevisitedZX-AppealApril 1988
WRx16 Revisited!CATS NewsletterJuly 1988
WRx16 Revisited!
Concluded from the July and August 1988 issues and delete the demo portion everything between and including lines 7 through...
Fred NachbaurCATS NewsletterSeptember 1988
WRx16 UpgradeZX-AppealMay 1988
WRx16, Part 2
Source code for the WRx16 high resolution routine and example programs. Reprinted from ZX-Appeal, April and May 1988.
CATS NewsletterAugust 1988
WRx16, Part 2CATS NewsletterAugust 1988
Yet Another ZX-TS Fix
Do you have any of the following problems with your ZX81 or TS1000?
Fred NachbaurSyncWare NewsJuly/August 1987
ZX-Appeal Honors Fred NachbaurThe HackerJune 1989
ZX-Term*80 and MemotextZX-AppealSeptember 1988
ZX-Term*80 Modification for Use With MichTron BBS ProgramTimex Sinclair Users Group Mile High Chapter NewsletterJune 1991
ZX-TERM*80 Modification for use with MichTron BBS Program
NNN does not recognize Delete (ASCIl 7Fh = 127d) when DEL is sent. To delete last character sent you must...
Fred NachbaurTimex Sinclair Users Group Mile High Chapter NewsletterJune 1991
ZX-TERM*80, The New T/S1000 Telecommunications Program
In early April, 1987 I got a phone call from Fred Nachbaur of Silicon Mountain Computers in Canada. He was...
Ed GreyNite-Times NewsJuly 1987
ZX81 News and Resources
Larken Disk system for TS1000, Mini XMODEM 1.7 for ZX81 and TS 2050, Fred Nachbaur’s JOBASIC.
T-S HorizonsMay/June 1986

Companies (2)

Products (16)

TitleCompany
Baby BBU
NiCad battery backup. 30 minute capacity.
SyncWare Co.
Bargain Pak #1
Includes BLACKJACK, HI-RES CHESS, and INVADERS. Arcade action, casino fun, and thought-provoking entertainment all on one inexpensive tape. 16K.
Silicon Mountain Computers
BBU-1
Provides up to one hour of power via NiCd batteries. Connects between power supply and computer.
SyncWare Co.
BBU-2
Provides more than two hours of power via NiCd batteries. Includes built-in, heavy duty power supply, power indicators and power...
SyncWare Co.
Common-Emitter Transistor Amplifier
Design and analysis of common-emitter transistor amplifiers. Biasing, stability, frequency response, input/output resistances, power dissipation, and thermal effects taken into...
SyncWare Co.
Dungeon of Ymir
High resolution, “Dungeons and Dragons” graphic adventure game, Rogue-like. Travel to the ninth level of the Dungeon of Ymir to...
Silicon Mountain Computers
Fun and Games I
5 games: Syncwars, Minotaur, Nim, ContsEntration, and TS Doodle. 2K.
SyncWare Co.
Games I
Listing, documentation, and cassette of four games. Sync wars: keyboard reaction time; in 1K, 2K and 16K. Guess My Number:...
SyncWare Co.
High-Res Blackjack
Blackjack program written in SRAM HI-RES Extended BASIC. The game logic was adapted from a similar game Fred had written...
Silicon Mountain Computers
Memotext (RAM-based)
Includes Powell Hargrave’s Super Data Save (SDS) relocated and incorporated for fast load and saves of text. Help screens and...
Memotech
Multiprogram Demo
Tutorial on a technique for storing multiple programs in 16K or more RAM at the same time. No machine language...
SyncWare Co.
PC8300 Timex ROM
Custom adaptation of the Timex/Sinclair 1000 ROM for the Lambda 8300 computer. Adapted by Fred Nachbaur, the replacement EPROM came...
Silicon Mountain Computers
SRAM Hi*Res Extended BASIC
Thirty-eight new commands extend graphic capabilities of ZX81/TS 1000 in 4K machine-code routine package. Features include upper/lower case, 64-column mode,...
Silicon Mountain Computers
SyncMath
Math quizzes for three levels of difficulty. Game rewards double as keyboard trainers. 6-16 yrs. 16K.
SyncWare Co.
WA-TOR
Ecology simulation program which first appeared in Oct ’84 issue of Scientific American. WA-TOR recreates the ecology of 3 independent...
Thomas B. Woods
ZX-TERM*80
Terminal program that offers 40, 60 and 80-column mode on the ZX81/TS 1000. Supports data transfers, full ASCII support, printer...
Silicon Mountain Computers

Periodicals (1)

Downloadable Files (25)

TitleTypeCompanyDownload
Bi-Plot DemoCassetteDownload
Blackjack (1000)CassetteDownload
CalendarCassetteDownload
Common-Emitter Transistor AmplifierCassetteSyncWare Co.Download
Dungeon of YmirCassetteSilicon Mountain ComputersDownload
Fast 3-D LandscapesCassetteDownload
Fontkit for WRX16CassetteDownload
Fourier AnalysisCassetteDownload
Fun and Games Tape 1CassetteSyncWare Co.Download
Hi-Res ChessCassetteDownload
High Res Space InvCassetteDownload
InvadersCassetteSyncWare Co.Download
Julia SetsCassetteDownload
Mandelbrot-FPPCassetteDownload
Multiprogram DemoProgramSyncWare Co.Download
NimCassetteSyncWare Co.Download
NIM 2KCassetteDownload
PC-8300 Timex ROMROMSilicon Mountain ComputersDownload
SRAM Hi-Res Extended BASICCassetteSyncWare Co.Download
TI Video SoftwareProgramJohn Oliger Co.Download
TMS 9918A Video Upgrade ROMROMJohn Oliger Co.Download
VDAQ1-HRCassetteSyncWare Co.Download
WA-TORCassetteThomas B. WoodsDownload
Ymir Dungeon DesignerCassetteSilicon Mountain ComputersDownload
ZX-TERM*80CassetteSyncWare Co.Download

Documents (26)

Events (1)

Videos (1)

TitleDateWatch
ZX81+64K F Scapes tutorial
Greg Harder demonstrates Fred Nachbaur’s F-Scapes program.
July 24, 2023Watch ↗

Blog Posts (1)

Fred Nachbaur
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