| ID | Tandy Radio Shack TRS-80 Model III |
|---|---|
| Short Name | |
| Name | TRS-80 Model III |
| Company | Tandy Radio Shack |
| Description | The model 3 is generally regarded as the successor to the Model 1. Its two 5.25" floppy disk drives could convert model 1 disks. Initially Radio Shack wanted to sell both the model 1 and 3 at the same time, but the FCC forced them to stop selling model 1. Is so they were discontinued because of the excessive radio noise that they put out. However, the Model 3 wasn't FULLY compatible with the model 1. There were differences in ROM which meant some programs had to be converted, especially those machine language ones that made ROM calls. ______________________ Model III configurations, by Dave Thompson: TRS-80 Model III was sold in multiple configurations. No hardrive configurations included: Model III with Level 1 ROM, 8k RAM sold for US$799. Model III with Level 2 ROM, 16k RAM sold for $999. The first floppy drive cost $849, and could store 168k. The second drive was cheaper, and could store more. The price difference is due to the first one included the drive controller. The increased space on the second drive (189k) was due to the first drive must also contain some TRS-DOS (the operating system). Brandt Daniels adds: There was also a TRS-80 VideoTex Computer terminal in 1980. Mark Fowler reports: I worked for a company in 1982 that had integrated a 5MB, and later a 10MB hard disk into the TRS80 Model III. It was then programmed in FORTRAN-66 as a dedicated medical records system, to mimic the pegbook accounting system in use in the 1980's. We introduced green phosphor, and later amber phosphor display tubes. Some systems were used with a modem to do simple email-type applications, and to access various bulletin boards. |
| Date Available | 1981 |
| Type | Computer |
| Emulators |
mess vcc |
| Alternate Names |
Tandy Radio Shack TRS-80 Model III |
| Links | |
| Matches |
emutopia 418 tosec Tandy Radio Shack TRS-80 Model III - Various oldcomputers 18 |
| emutopia | 418 | {
"id": 418,
"name": "Tandy Radio Shack TRS-80",
"shortName": "tandy-radio-shack-trs-80",
"url": "https://emutopia.com/index.php/emulators/category-items/3-emulators/418-tandy-radio-shack-trs-80",
"type": "Computers",
"emulators": [
1466
]
} |
|---|---|---|
| tosec | Tandy Radio Shack TRS-80 Model III - Various | {
"id": "Tandy Radio Shack TRS-80 Model III - Various",
"name": "Tandy Radio Shack TRS-80 Model III - Various",
"altNames": [
"Tandy Radio Shack TRS-80 Model III"
]
} |
| oldcomputers | 18 | {
"type_id": 1,
"id": 18,
"pages": {
"photos": "photos.asp?t=1&c=18&st=1",
"adverts": "photos.asp?t=2&c=18&st=1",
"hardware": "hardware.asp?t=1&c=18&st=1",
"software": "software2.asp?t=2&c=18&st=1",
"emulators": "emulator.asp?c=18&st=1",
"links": "links.asp?c=18&st=1",
"docs": "docs.asp?c=18&st=1",
"comments": "forum.asp?c=18&st=1"
},
"image": "https://www.old-computers.com/museum/photos/tandy_trs80-model3_1.jpg",
"company_link": "company.asp?st=1&m=125",
"company_name": "Tandy Radio Shack",
"company_logo": "https://www.old-computers.com/museum/logos/Tandy_Logo.gif",
"description": "The model 3 is generally regarded as the successor to the <a href=\"computer.asp?c=409\">Model 1</a>. \nIts two 5.25\" floppy disk drives could convert model 1 disks.\nInitially Radio Shack wanted to sell both the model 1 and 3 at the same time, but the FCC forced them to stop selling model 1. Is so they were discontinued because of the excessive radio noise that they put out.\nHowever, the Model 3 wasn't FULLY compatible with the model 1. There were differences in ROM which meant some programs had to be converted, especially those machine language ones that made ROM calls.\n______________________\nModel III configurations, by <b>Dave Thompson</b>:\n<font color=\"#666666\">TRS-80 Model III was sold in multiple configurations.\nNo hardrive configurations included:\nModel III with Level 1 ROM, 8k RAM sold for US$799. Model III with Level 2 ROM, 16k RAM sold for $999.\n \nThe first floppy drive cost $849, and could store 168k. The second drive was cheaper, and could store more. The price difference is due to the first one included the drive controller. The increased space on the second drive (189k) was due to the first drive must also contain some TRS-DOS (the operating system).</font>\n<b>Brandt Daniels</b> adds:\n<font color=\"#666666\">\nThere was also a TRS-80 VideoTex Computer terminal in 1980.</font>\n<b>Mark Fowler</b> reports:\n<font color=\"#666666\">I worked for a company in 1982 that had integrated a 5MB, and later a 10MB hard disk into the TRS80 Model III. It was then programmed in FORTRAN-66 as a dedicated medical records system, to mimic the pegbook accounting system in use in the 1980's. We introduced green phosphor, and later amber phosphor display tubes. Some systems were used with a modem to do simple email-type applications, and to access various bulletin boards.</font>",
"name": "TRS 80 MODEL III",
"manufacturer": "Tandy Radio Shack",
"type": "Home Computer",
"origin": "U.S.A.",
"year": "1981",
"end_of_production": "Unknown",
"built_in_language": "TRS-80 Level II BASIC",
"keyboard": "Full-stroke keyboard with separated numeric keypad",
"cpu": "Zilog Z80 then Z80A",
"speed": "2.03 MHz",
"ram": "16 KB (up to 48 KB)",
"rom": "14 KB",
"text_modes": "32 or 64 columns x 16 lines",
"graphic_modes": "128 graphic characters",
"colors": "monochrome",
"io_ports": "Tape (500 or 1500 bauds), Centronics, RS232",
"built_in_media": "Zero, one or two 5.25'' disk-drives.",
"os": "TRS DOS (other OSes were available : New DOS, LDOS, MultiDOS, ...)",
"power_supply": "Built-in power supply unit",
"peripherals": "Various Tandy peripherals",
"price": "No disk model : AU$1450 (Australia, 1981)<br>$2495 in 1984 for a complete system with 2x360 KB drives, TRSDOS, 64kb Ram, software and printer",
"photos": [
{
"name": "Rebadged version ",
"image": "https://www.old-computers.com/museum/photos/Tandy_Model3_AdsClone_1.jpg",
"description": "A rebadged version sold by ADS Co. under the name DATAMAX.<p class=\"petitgris\">Thanks to <b>Jon Gilmore</b></p>"
},
{
"name": "Typing school ",
"image": "https://www.old-computers.com/museum/photos/Tandy_TRS80Mod3_TypingCourse_1.jpg",
"description": "In a few years traditional typewriters were replaced with computers. This revolution started around 1985. At the time, this school of the Pigier group was equiped with Tandy TRS80 models 1 and 3 "
}
],
"adverts": [
{
"image": "https://www.old-computers.com/museum/adverts/tandy_trs80-model3_ad_1.jpg",
"name": "Isaac Asimov ad #1"
},
{
"image": "https://www.old-computers.com/museum/adverts/Tandy_Model3_Advert_2.jpg",
"name": "Isaac Asimov ad #2"
},
{
"image": "https://www.old-computers.com/museum/adverts/Tandy_Model3_Advert_s3.jpg",
"name": "US advert Apr. 1982"
},
{
"image": "https://www.old-computers.com/museum/adverts/Tandy_Model3_Advert_1.jpg",
"name": "U.S. ad (1982)"
},
{
"image": "https://www.old-computers.com/museum/adverts/tandy_trs80-model3_dossier31.jpg",
"name": "French advert (1982)"
},
{
"image": "https://www.old-computers.com/museum/adverts/tandy_trs-80_model1_advert_avocats.jpg",
"name": "french advert (jan. ..."
}
],
"hardware": [
{
"name": "Remote Unit ActiveSerial# 26-1210",
"image": "https://www.old-computers.com/museum/hardware/tandy_trs80-m1_remote-unit-active.jpg",
"description": "> Serial# 26-1210<br>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.\n<br><br>\nIt cost 2895fr (France, 1981)"
},
{
"name": "Network II boxp/n 26-1211",
"image": "https://www.old-computers.com/museum/hardware/Tandy_Network2_s1.jpg",
"description": "> p/n 26-1211<br>This box allowed up to 16 TRS computer to be networked. Three network boxes were released by Tandy (I, II and III).<br>\nThe 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.<br>\nThe network III allowed automated control of the network so that users could easily access programs and data stored on the server's storage device.<p class=\"petitgris\">Thanks to <b>David Sutherland</b> for the pictures.</p>"
},
{
"name": "DMP-200",
"image": "https://www.old-computers.com/museum/hardware/Tandy_Model3_DMP200_s1.jpg",
"description": "80-column, 100 cps dot matrix printer."
},
{
"name": "Daisy Wheel Printer IISerial# 26-1158",
"image": "https://www.old-computers.com/museum/hardware/tandy_trs80-m1_daisy-wheel-printer-2_1.jpg",
"description": "> Serial# 26-1158<br>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.\n<br><br>\nIt cost 9595fr (France, 1981)"
},
{
"name": "Line Printer I Ref# 26-7017",
"image": "https://www.old-computers.com/museum/hardware/Tandy_Model1_LinePrinter1_s1.jpg",
"description": "> Ref# 26-7017<br>This printer was a custom version of the Oki Microline 80.<br>\nPrinted 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.\n<br><br>\nIt cost 716 Euros in 1981 (France)."
},
{
"name": "Line Printer IIISerial# 26-1156",
"image": "https://www.old-computers.com/museum/hardware/tandy_trs80-m1_line-printer-3_1.jpg",
"description": "> Serial# 26-1156<br>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 !\n<br<<br>\nIt cost 9950fr in 1981 (France). \n"
},
{
"name": "Line Printer VISerial# 26-1166",
"image": "https://www.old-computers.com/museum/hardware/tandy_trs80-m1_line-printer-6_1.jpg",
"description": "> Serial# 26-1166<br>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.\n<br><br>\nIt cost 5495fr in 1981 (France)."
},
{
"name": "TP-10 Thermal PrinterBox",
"image": "https://www.old-computers.com/museum/hardware/tandy_trs80_tp-10_thermal-printer_box.jpg",
"description": "> Box<br>"
},
{
"name": "15 MB hard disk unit",
"image": "https://www.old-computers.com/museum/hardware/Tandy_Model3_15mbHDDunit.jpg",
"description": ""
},
{
"name": "Exatron Stringy Floppy drive",
"image": "https://www.old-computers.com/museum/hardware/Tandy_Model3_ExatronWafer_s1.jpg",
"description": "> Stringy Floppy drive<br>The Exatron Stringy Floppy (ESF) was a low-cost data—storage system that fitted the gap, between cassettes and disk drives.<br>\nThe system was based on a miniature endless—loop tape cartridge called a \"wafer\".<br>\nThe 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. \n<br><br>\n<b>Matt</b> reports to us:<br><font color=\"#666666\">\nA 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.</font>\n<p class=\"petitgris\">Thanks to <b>David Sutherland</b> for the pictures</p>"
},
{
"name": "Exatron drive for the Model 3",
"image": "https://www.old-computers.com/museum/hardware/Tandy_Model3_ExatronWafer3_s1.jpg",
"description": "<p class=\"petitgris\">Thanks to <b>www.turnkit.com/computers</b></p>"
}
],
"emulators": [
{
"name": "David Keil's TRS-80 Model III/4/4P Emulator Page",
"url": "http://discover-net.net/~dmkeil/trs80/model4.htm",
"platform": "MS DOS",
"description": "This program emulates a complete TRS-80"
},
{
"name": "Matthew Reed's TRS-80 Emulator Web Site",
"url": "http://www.arrowweb.com/mkr/",
"platform": "MS DOS",
"description": "This page offers shareware versions of a TRS-80 Model 4 emulator and a TRS-80 Model 1-2 emulator"
},
{
"name": "TRS-80 Model III/4 Emulator",
"url": "http://www.vavasour.ca/jeff/trs80.html#model4",
"platform": "MS DOS",
"description": "This TRS-80 Model III/4 Emulator is a commercial product "
},
{
"name": "xtrs: TRS-80 Model I/III/4 Emulator for Unix",
"url": "http://www.tim-mann.org/xtrs.html",
"platform": "Unix / Linux",
"description": "xtrs is a Radio Shack TRS-80 Model I/III/4/4P emulator for Unix and the X Window System"
},
{
"name": "2nd life TRS 80 model III emulator",
"url": "http://www.users.zetnet.co.uk/atari_shack/emul8.htm",
"platform": "Atari",
"description": "TRS 80 model III emulator for Atari ST systems"
},
{
"name": "TRS-80 Level I BASIC in a browser",
"url": "http://www.vavasour.ca/jeff/trs80.html#simulator",
"platform": "Other platform",
"description": "With this Java emulator, you'll be able to write a BASIC program directly in your browser!"
},
{
"name": "Ira Goldklang's TRS-80 Revived Pages",
"url": "http://www.trs-80.com/trs80-e.htm",
"platform": "Multiplatform",
"description": "A complete list of TRS-80 emulators for various platforms !"
},
{
"name": "MESS",
"url": "http://www.mess.org",
"platform": "Multiplatform",
"description": "MESS emulator also emulates a TRS-80 systems"
}
],
"links": [
{
"url": "computer.asp?st=1&c=1324",
"name": "Sysdata Eletronica - JR",
"description": "Online Magazine dedicated to the TRS-80 and other Vintage - Monthly Issues"
},
{
"url": "computer.asp?st=1&c=1302",
"name": "Radionic - Model R1001",
"description": "Lof of infos about all TRS-80 computers"
},
{
"url": "computer.asp?st=1&c=242",
"name": "Tandy Radio Shack - TRS 80 MODEL 16",
"description": "Level 1 & 2 Basic summaries, Tandy time-lines, price-list, etc ... !"
},
{
"url": "computer.asp?st=1&c=244",
"name": "Tandy Radio Shack - TRS 80 MODEL 4",
"description": "Here, you can actually/virtually flip-through the pages to view the content of every RadioShack catalog!"
},
{
"url": "computer.asp?st=1&c=1083",
"name": "Tandy Radio Shack - TRS 80 Model 4P",
"description": "Full of infos"
},
{
"url": "computer.asp?st=1&c=409",
"name": "Tandy Radio Shack - TRS 80 MODEL I",
"description": "Infos, tools and home of xtrs, a Model I/III/4 emulator for Unix "
},
{
"url": "computer.asp?st=1&c=243",
"name": "Tandy Radio Shack - TRS 80 MODEL II",
"description": "Discussion about Tandy computers"
},
{
"url": "computer.asp?st=1&c=766",
"name": "Tandy Radio Shack - TRS-80 Model 12"
},
{
"url": "HTTP://WWW.8BIT-MICRO.COM",
"name": "8bit-micro.com - Online TRS-80 Computer Magazine"
},
{
"url": "http://freespace.virgin.net/david.sampson/",
"name": "David's TRS-80 Page"
},
{
"url": "http://www.trs-80.com/",
"name": "Ira Goldklang's TRS-80 Revived Pages"
},
{
"url": "http://ganley.org/software/trs80.html",
"name": "Java TRS-80 Model 1 BASIC Interpreter"
},
{
"url": "http://personal.nbnet.nb.ca/mclays/trsmod1.html",
"name": "Mike's Personal Computer Museum"
},
{
"url": "http://www.RadioShackCatalogs.com",
"name": "RadioShackCatalogs.com"
},
{
"url": "http://www.kjsl.com/trs80",
"name": "The TRS-80 Home Page"
},
{
"url": "http://www.tim-mann.org/trs80.html",
"name": "Tim Mann's TRS-80 Page"
},
{
"url": "news:comp.sys.tandy",
"name": "comp.sys.tandy"
}
]
} |