website/content/museum/tandy-radio-shack-trs-80-model-16.md

title, categories, types, origins, years, cpus, params

title	categories	types	origins	years	cpus	params
Tandy Radio Shack TRS 80 MODEL 16	Computers	Home Computer	U.S.A.	1982	Zilog Z80 A	name image company company_name specs tabs forum_thread adverts hardware screenshots emulators links related oc_id source TRS 80 MODEL 16 /media/museum/photos/trs80_16.jpg /companies/tandy-radio-shack Tandy Radio Shack label value NAME TRS 80 MODEL 16 label value MANUFACTURER Tandy Radio Shack label value TYPE Home Computer label value ORIGIN U.S.A. label value YEAR 1982 label value BUILT IN LANGUAGE None label value KEYBOARD full stroke keyboard label value CPU Zilog Z80 A + Motorola MC 68000 label value SPEED 4 MHz (Z80) + 6 MHz (68000) label value RAM 128 KB (up to 512 KB) label value ROM Unknown label value TEXT MODES 40 or 80 columns x 24 lines label value GRAPHIC MODES Unknown label value COLORS Monochrome label value SOUND Unknown label value SIZE / WEIGHT Unknown label value I/O PORTS Centronics, RS232 (2) label value BUILT IN MEDIA One or Two 8'' floppy disk drives label value OS New DOS / Xenix label value POWER SUPPLY Built-in power supply unit label value PERIPHERALS Memory cards up to 7 MB label value PRICE Unknown adverts hardware software emulators links 252 title subtitle text image ADVERT First advert from 'Byte' magazine /media/museum/pubs/tandy_modele16_pub_1.jpg title subtitle text image REMOTE UNIT ACTIVE Serial# 26-1210 This rare unit is meant for teachers to control up to 16 TRS-80 Model 1 from a another TRS-80 equiped with min-disk. All the controled TRS-80 model 1 must be equiped with Level II. It cost 2895fr (France, 1981) /media/museum/hardware/tandy_trs80-m1_remote-unit-active.jpg title subtitle text image NETWORK II BOX p/n 26-1211 This box allowed up to 16 TRS computer to be networked. Three network boxes were released by Tandy (I, II and III).\ The Network II required verbal communication between the server operator and the remote user, and data transfer had to be completed one user at a time.\ The network III allowed automated control of the network so that users could easily access programs and data stored on the server's storage device. Thanks to **David Sutherland** for the pictures. /media/museum/hardware/tandy_network2_s1.jpg title subtitle text image DMP-200 80-column, 100 cps dot matrix printer. /media/museum/hardware/tandy_model3_dmp200_s1.jpg title subtitle text image DAISY WHEEL PRINTER II Serial# 26-1158 This is a high-quality printer meant to be used with wordprocessors. Some interchangeable daisy-wheels were available (Courrier, Elite, Madeleine). It could print 163 characters per line (34cm), at a 43 cps rate. It cost 9595fr (France, 1981) /media/museum/hardware/tandy_trs80-m1_daisy-wheel-printer-2_1.jpg title subtitle text image LINE PRINTER I Ref# 26-7017 This printer was a custom version of the Oki Microline 80.\ Printed lower and upper case on paper rolls or listing paper (24cm wide) from 40 to 80 columns/line, at a speed rate of 28 lines/minute. It cost 716 Euros in 1981 (France). /media/museum/hardware/tandy_model1_lineprinter1_s1.jpg title subtitle text image LINE PRINTER III Serial# 26-1156 This printer can print lower and upper case, at a speed rate of 120 c/s, on paper up to 38cm wide. It is conceived for intensive use ! It cost 9950fr in 1981 (France). /media/museum/hardware/tandy_trs80-m1_line-printer-3_1.jpg title subtitle text image LINE PRINTER VI Serial# 26-1166 This large printer can print lower and upper case, graphic characters and symbols at a speed rate of 100 c/s ! This is definately a professional printer. It cost 5495fr in 1981 (France). /media/museum/hardware/tandy_trs80-m1_line-printer-6_1.jpg title subtitle text image TP-10 THERMAL PRINTER Box /media/museum/hardware/tandy_trs80_tp-10_thermal-printer_box.jpg title subtitle text image EXATRON Stringy Floppy drive The Exatron Stringy Floppy (ESF) was a low-cost data—storage system that fitted the gap, between cassettes and disk drives.\ The system was based on a miniature endless—loop tape cartridge called a "wafer".\ The amount of data that could be recorded on a wafer depended on the length of tape in it, typically, a 50—foot wafer could hold at least 40 KB of programs or data. **Matt** reports to us:\ A curiousity about the model 1, CPU SPEED had a direct relatonship with STORAGE CAPACITY. if you doubled the clock speed of your MODEL 1 CPU you doubled the amount of data you could store on your stringy floppies. this is a feat that no other computer no matter how many ghz you have in your PC can do today without using compression. Thanks to **David Sutherland** for the pictures /media/museum/hardware/tandy_model3_exatronwafer_s1.jpg title subtitle text image XENIX BOOTSTRAP SCREENSHOT /media/museum/software/tandy_modele16_xenix_1.jpg title url platform text David Keil's TRS-80 Model III/4/4P Emulator Page http://discover-net.net/~dmkeil/trs80/model4.htm MS DOS This program emulates a complete TRS-80 title url platform text Matthew Reed's TRS-80 Emulator Web Site http://www.arrowweb.com/mkr/ MS DOS This page offers shareware versions of a TRS-80 Model 4 emulator and a TRS-80 Model 1-2 emulator title url platform text TRS-80 Model III/4 Emulator http://www.vavasour.ca/jeff/trs80.html#model4 MS DOS This TRS-80 Model III/4 Emulator is a commercial product title url platform text xtrs: TRS-80 Model I/III/4 Emulator for Unix http://www.tim-mann.org/xtrs.html Unix / Linux xtrs is a Radio Shack TRS-80 Model I/III/4/4P emulator for Unix and the X Window System title url platform text TRS-80 Level I BASIC in a browser http://www.vavasour.ca/jeff/trs80.html#simulator Other platform With this Java emulator, you'll be able to write a BASIC program directly in your browser! title url platform text Ira Goldklang's TRS-80 Revived Pages http://www.trs-80.com/trs80-e.htm Multiplatform A complete list of TRS-80 emulators for various platforms ! title url platform text MESS http://www.mess.org Multiplatform MESS emulator also emulates a TRS-80 systems title url text 8bit-micro.com - Online TRS-80 Computer Magazine HTTP://WWW.8BIT-MICRO.COM Online Magazine dedicated to the TRS-80 and other Vintage - Monthly Issues title url text David's TRS-80 Page http://freespace.virgin.net/david.sampson/ title url text Ira Goldklang's TRS-80 Revived Pages http://www.trs-80.com/ Lof of infos about all TRS-80 computers title url text Java TRS-80 Model 1 BASIC Interpreter http://ganley.org/software/trs80.html title url text Mike's Personal Computer Museum http://personal.nbnet.nb.ca/mclays/trsmod1.html Level 1 & 2 Basic summaries, Tandy time-lines, price-list, etc ... ! title url text RadioShackCatalogs.com http://www.RadioShackCatalogs.com Here, you can actually/virtually flip-through the pages to view the content of every RadioShack catalog! title url text The TRS-80 Home Page http://www.kjsl.com/trs80 Full of infos title url text Tim Mann's TRS-80 Page http://www.tim-mann.org/trs80.html Infos, tools and home of xtrs, a Model I/III/4 emulator for Unix title url text Web Wiz CAPTCHA http://www.webwizcaptcha.com Discussion about Tandy computers /museum/radionic-model-r1001 /museum/sysdata-eletronica-jr /museum/tandy-radio-shack-trs-80-model-12 /museum/tandy-radio-shack-trs-80-model-4 /museum/tandy-radio-shack-trs-80-model-4p /museum/tandy-radio-shack-trs-80-model-i /museum/tandy-radio-shack-trs-80-model-ii /museum/tandy-radio-shack-trs-80-model-iii 242 url date https://web.archive.org/web/20230608082414/http://www.old-computers.com/museum/computer.asp?c=242 2023-06-08

The Model 16 was the same as a Model 12 with the 68000 add-on. It was launched a few time after the Tandy TRS 80 model IV. The Z80 processor was used for I/O. Up to four hard disks could be connected (8.4 mb each). It was compatible with the Tandy TRS 80 model II thanks to the Z80 and could run the Model II operating system.

This 68000 chip set and associated memory were much more than a speed improvement. It created a multi-user Unix-based system (actually Xenix, which was just a scaled down Unix). Interestingly, Xenix was developed in part by Microsoft, it was probably the basis upon which some Unix-like functionalities were added to MS-DOS 2.0, like sub-directories, pipes and re-direction.

The 16/6000 had a maximum memory capacity of 768K, and up to 9 serial ports for external terminals. These limits were partly just physical, due to limited card slot space. The 3-port serial cards had jumpers that would have allowed quite a few of them given an external card cage (never produced).

The 768K memory limit was later bumped to 1 MB when 64K memory chips became available. The original machine used a memory card of 256KB populated with 16K chips, and cables were available to support up to three cards. With 64K chips only one card was needed to give 1 MB of memory. Operating system limitations prevented using multiple 1 M cards to expand further in user memory space, but it was possible with software to utilize up to an additional 7 MB of memory as the system "swapper" which, given only 1 MB of user space, was almost always a source of performance loss if handled by the hard drive.

Thanks to Mark Brumlik for the main part of information.