TRS-80 Model I Family - Revision history

Rayrayemu: Total overhaul of page

2023-05-23T03:20:20Z

Total overhaul of page

Rayrayemu: Rayrayemu moved page TRS-80 Model I to TRS-80 Model I Family: Rename in preparaton for expanded article PLEASE keep redirect

2023-05-23T01:32:27Z

Rayrayemu moved page TRS-80 Model I to TRS-80 Model I Family: Rename in preparaton for expanded article PLEASE keep redirect

Rayrayemu at 21:28, 22 May 2023

2023-05-22T21:28:04Z

Rayrayemu: Added infobox

2023-05-22T21:21:34Z

Added infobox

Jnc: Avoid redir; add some links

2023-05-22T16:10:44Z

Avoid redir; add some links

Rayrayemu at 03:22, 22 May 2023

2023-05-22T03:22:02Z

Rayrayemu at 03:32, 21 May 2023

2023-05-21T03:32:44Z

Rayrayemu at 03:15, 21 May 2023

2023-05-21T03:15:59Z

Rayrayemu at 03:04, 21 May 2023

2023-05-21T03:04:41Z

Rayrayemu at 03:02, 21 May 2023

2023-05-21T03:02:15Z

@@ Line 5: / Line 5: @@
 | date first shipped  =  November, 1977
 | year introduced     =  1977
-| year discontinued   =  1980
+| year discontinued   =  1981
 | form factor         =  Microcomputer
 | word size           =  8-bit
 | clock speed         =  1.774 MHz
-| ram                 =  4k (Level I Basic) 16k-48k (Level II Basic)
+| ram                 =  4 KB (Level I Basic) 16 - 48 KB (Level II Basic)
-| cpu                 =  Z80 (Later Z80A)
+| cpu                 =  [[Z80]] (Later Z80A)
-| operating system    =  Level I Basic, Level II Basic, TRSDOS, Third Party DOSes including LDOS
+| operating system    =  Level I Basic, Level II Basic, [[TRSDOS]], Third Party DOSes including LDOS
 | successor           =  TRS-80 Model III
 | price               =  US$599
@@ Line 18: / Line 18: @@
-The original versions came with 4k [[RAM]] and Level I [[BASIC]] which was on [[Tiny Basic]]. In 1978, [[Level II Basic]], a double precision [[floating point]] Basic written by [[Microsoft]]. Also, in 1978, the Expansion Interface was released. This Interface allowed up to four [[floppy disk]] drives and up to 48k RAM in groups of 16k assuming the base system had 16k installed. It also allowed a [[printer]] to be attached.
+The '''TRS-80 Model I''' computer, originally known as simply the '''TRS-80''' computer, was released in 1977. It is considered to be part of the "1977 trinity of home computers also including the [[Apple II]] and the [[Commodore Pet]]. Unlike the [[6502]] driven Apple and Commodore machines, the Model I used the [[Zilog Z80]] processor running at 1.77 MHz. It spawned two other major models, the Model III and the Model 4 and its variants.
-The second TRS-80 computer, the incompatible business computer Model II part of the [[TRS-80 Model II Family]] was released in 1979. It should be known that in 1978 a short-lived business system called the [[Tandy 10 Business Computer]] was released but it sold extremely poorly and to the best of my knowledge wasn't even featured in the famous [[Radio Shack]] Computer Catalogs. In 1980, it's mostly compatible successor the [[TRS-80 Model III]] was released. It was an all-in-system with a faster Z80 and the ability to type in lower case plus other improvements. Not long after, the FCC declared that the Model I did not comply to new, more stringent RF [[interference]] standard and Radio Shack had to take it off the market.
+The Model I family is still used by many hobbyists and there have been third-party network cards and even enhanced video playback. SD cards have replaced floppies and hard drives and there are even subReddits and Facebook groups for these systems.
-There are many good emulators for the system, but I recommend [[trs80gp]] which emulates multiple emulates all of the Z80 TRS-80 systems plus the Model 16, Tandy 6000, and the [[TRS-80 MC-10]], a small, low price home computer.
+There are many good emulators for the system, but I recommend [http://48k.ca/trs80gp.html trs80gp] which emulates multiple emulates all of the Z80 TRS-80 systems plus the Model 16, Tandy 6000, and the [[TRS-80 MC-10]], a small, low price home computer. There is also good software representation in the TOSEC for all of the models.
-{{semi-stub}}
+* The site for all things TRS-80 [https://www.trs-80.com/wordpress]
 {{nav TRS-80}}
 [[Category: Radio Shack Computers]]

@@ Line 1: / Line 1: @@
-<noinclude>
+{{Infobox Machine
 | name                =  TRS-80 Model I
 | manufacturer        =  Tandy Corporation
@@ Line 17: / Line 14: @@
 | successor           =  TRS-80 Model III
 | price               =  US$599
-</pre>
+}}

← Older revision		Revision as of 21:21, 22 May 2023
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		+	<noinclude>
		+	<!-- not clear which of the various year fields 'introduced' means, but since there are users of this template which use it, it can't be removed -->
		+
		+	<pre>
		+	\| name = TRS-80 Model I
		+	\| manufacturer = Tandy Corporation
		+	\| date announced = August 3, 1977
		+	\| date first shipped = November, 1977
		+	\| year introduced = 1977
		+	\| year discontinued = 1980
		+	\| form factor = Microcomputer
		+	\| word size = 8-bit
		+	\| clock speed = 1.774 MHz
		+	\| ram = 4k (Level I Basic) 16k-48k (Level II Basic)
		+	\| cpu = Z80 (Later Z80A)
		+	\| operating system = Level I Basic, Level II Basic, TRSDOS, Third Party DOSes including LDOS
		+	\| successor = TRS-80 Model III
		+	\| price = US$599
		+	</pre>
		+
		+	<!-- prototype (blank) entry
		+	{{#if: {{{xx\|}}} \|
		+	! xx:
		+	{{!}} {{{xx}}} }}
		+	\|-
		+	-->
		+
		+	</noinclude>
		+	<includeonly>
		+	{\| class="infobox bordered" style="width: 25em; text-align: left; font-size: 90%" align="right"
		+	\|-
		+	\| colspan="2" style="text-align:center; font-size: large;" \| '''{{{name}}}'''
		+	\|-
		+	{{#if: {{{image\|}}} \|
		+	{{!}} colspan="2" style="text-align:center;" {{!}} [[Image:{{{image}}}\|250px\| ]]<br>{{{caption}}} }}
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		+	{{#if: {{{manufacturer\|}}} \|
		+	! Manufacturer:
		+	{{!}} {{{manufacturer}}} }}
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		+	{{#if: {{{architecture\|}}} \|
		+	! Architecture:
		+	{{!}} {{{architecture}}} }}
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		+
		+	{{#if: {{{Date announced\|}}} \|
		+	! Date Announced:
		+	{{!}} {{{year announced}}} }}
		+	\|-
		+
		+	{{#if: {{{year design started\|}}} \|
		+	! Year Design Started:
		+	{{!}} {{{year design started}}} }}
		+	\|-
		+
		+	{{#if: {{{date first shipped\|}}} \|
		+	! Date First Shipped:
		+	{{!}} {{{year first shipped}}} }}
		+	\|-
		+
		+	{{#if: {{{year introduced\|}}} \|
		+	! Year Introduced:
		+	{{!}} {{{year introduced}}} }}
		+	\|-
		+
		+	{{#if: {{{year discontinued\|}}} \|
		+	! Year Discontinued:
		+	{{!}} {{{year discontinued}}} }}
		+	\|-
		+
		+	{{#if: {{{form factor\|}}} \|
		+	! Form Factor:
		+	{{!}} {{{form factor}}} }}
		+	\|-
		+
		+	{{#if: {{{word size\|}}} \|
		+	! Word Size:
		+	{{!}} {{{word size}}} }}
		+	\|-
		+
		+	{{#if: {{{logic type\|}}} \|
		+	! Logic Type:
		+	{{!}} {{{logic type}}} }}
		+	\|-
		+
		+	{{#if: {{{design type\|}}} \|
		+	! Design Type:
		+	{{!}} {{{design type}}} }}
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		+	{{#if: {{{uword width\|}}} \|
		+	! Microword Width:
		+	{{!}} {{{uword width}}} }}
		+	\|-
		+
		+	{{#if: {{{ucode length\|}}} \|
		+	! Microcode Length:
		+	{{!}} {{{ucode length}}} }}
		+	\|-
		+
		+	{{#if: {{{clock speed\|}}} \|
		+	! Clock Speed:
		+	{{!}} {{{clock speed}}} }}
		+	\|-
		+
		+	{{#if: {{{cycle time\|}}} \|
		+	! Cycle Time:
		+	{{!}} {{{cycle time}}} }}
		+	\|-
		+
		+	{{#if: {{{instruction speed\|}}} \|
		+	! Instruction Speed:
		+	{{!}} {{{instruction speed}}} }}
		+	\|-
		+
		+	{{#if: {{{cache size\|}}} \|
		+	! Cache Size:
		+	{{!}} {{{cache size}}} }}
		+	\|-
		+
		+	{{#if: {{{cache speed\|}}} \|
		+	! Cache Speed:
		+	{{!}} {{{cache speed}}} }}
		+	\|-
		+
		+	{{#if: {{{ram\|}}} \|
		+	! Memory Size:
		+	{{!}} {{{ram}}} }}
		+	\|-
		+
		+	{{#if: {{{memory speed\|}}} \|
		+	! Memory Speed:
		+	{{!}} {{{memory speed}}} }}
		+	\|-
		+
		+	{{#if: {{{graphics\|}}} \|
		+	! Graphics:
		+	{{!}} {{{graphics}}} }}
		+	\|-
		+
		+	{{#if: {{{cpu\|}}} \|
		+	! CPU:
		+	{{!}} {{{cpu}}} }}
		+	\|-
		+
		+	{{#if: {{{physical address\|}}} \|
		+	! Physical Address Size:
		+	{{!}} {{{physical address}}} }}
		+	\|-
		+
		+	{{#if: {{{virtual address\|}}} \|
		+	! Virtual Address Size:
		+	{{!}} {{{virtual address}}} }}
		+	\|-
		+
		+	{{#if: {{{memory mgmt\|}}} \|
		+	! Memory Management:
		+	{{!}} {{{memory mgmt}}} }}
		+	\|-
		+
		+	{{#if: {{{bus arch\|}}} \|
		+	! Bus Architecture:
		+	{{!}} {{{bus arch}}} }}
		+	\|-
		+
		+	{{#if: {{{operating system\|}}} \|
		+	! Operating System:
		+	{{!}} {{{operating system}}} }}
		+	\|-
		+
		+	{{#if: {{{predecessor\|}}} \|
		+	! Predecessor(s):
		+	{{!}} {{{predecessor}}} }}
		+	\|-
		+
		+	{{#if: {{{successor\|}}} \|
		+	! Successor(s):
		+	{{!}} {{{successor}}} }}
		+	\|-
		+
		+	{{#if: {{{price\|}}} \|
		+	! Price:
		+	{{!}} {{{price}}} }}
		+	\|-
		+
		+	\| colspan="2" style="font-size: smaller;" \| {{{footnotes\|}}}
		+	\|}
		+	</includeonly>
		+
		+
	The '''TRS-80 Model I''' computer, originally known as simply the '''TRS-80''' computer, was released in 1977. It is considered to be part of the "1977 trinity of home computers also including the [[Apple II]] and the [[Commodore Pet]]. Unlike the [[6502]] driven Apple and Commodore machines, the Model I used the [[Zilog Z80]] processor running at 1.77 MHz.		The '''TRS-80 Model I''' computer, originally known as simply the '''TRS-80''' computer, was released in 1977. It is considered to be part of the "1977 trinity of home computers also including the [[Apple II]] and the [[Commodore Pet]]. Unlike the [[6502]] driven Apple and Commodore machines, the Model I used the [[Zilog Z80]] processor running at 1.77 MHz.

@@ Line 1: / Line 1: @@
-The TRS-80 Model I computer, originally known as simply the TRS-80 Computer was released in 1977. It is considered to be part of the "1977 trinity of home computers also including the [[Apple II]] and the [[Commodore Pet]]. Unlike the [[6502]] driven Apple and Commodore machines, the Model I used the [[Zilog Z80]] processor running at 1.77 MHz. The original versions came with 4k [[RAM]] and Level I [[Basic]] which was on [[Tiny Basic]]. In 1978, [[Level II Basic]], a double precision floating point Basic written by Microsoft. Also, in 1978, the Expansion Interface was released. This Interface allowed up to four [[floppy disk]] drives and up to 48k RAM in groups of 16k assuming the base system had 16k installed. It also allowed a printer to be attached. The second TRS-80 computer, the incompatible business computer Model II part of the [[Tandy TRS-80 Model II Family]] was released in 1979. It should be known that in 1978 a short-lived business system called the [[Tandy 10 Business Computer]] was released but it sold extremely poorly and to the best of my knowledge wasn't even featured in the famous Radio Shack Computer Catalogs. In 1980, it's mostly compatible successor the [[TRS-80 Model III]] was released. It was an all-in-system with a faster Z80 and the ability to type in lower case plus other improvements. Not long after, the FCC declared that the Model I did not comply to new, more stringent RF interference standard and Radio Shack had to take it off the market.
+The '''TRS-80 Model I''' computer, originally known as simply the '''TRS-80''' computer, was released in 1977. It is considered to be part of the "1977 trinity of home computers also including the [[Apple II]] and the [[Commodore Pet]]. Unlike the [[6502]] driven Apple and Commodore machines, the Model I used the [[Zilog Z80]] processor running at 1.77 MHz.
 There are many good emulators for the system, but I recommend [[trs80gp]] which emulates multiple emulates all of the Z80 TRS-80 systems plus the Model 16, Tandy 6000, and the [[TRS-80 MC-10]], a small, low price home computer.
 {{semi-stub}}
 {{nav TRS-80}}
 [[Category:Radio Shack Computers]]

← Older revision		Revision as of 03:22, 22 May 2023
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	{{nav TRS-80}}		{{nav TRS-80}}
−	[[Category:~~Tandy TRS-80~~ Computers]]	+	[[Category:Radio Shack Computers]]

← Older revision	Revision as of 01:32, 23 May 2023
(No difference)

← Older revision		Revision as of 03:32, 21 May 2023
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	There are many good emulators for the system, but I recommend [[trs80gp]] which emulates multiple emulates all of the Z80 TRS-80 systems plus the Model 16, Tandy 6000, and the [[TRS-80 MC-10]], a small, low price home computer.		There are many good emulators for the system, but I recommend [[trs80gp]] which emulates multiple emulates all of the Z80 TRS-80 systems plus the Model 16, Tandy 6000, and the [[TRS-80 MC-10]], a small, low price home computer.
		+	{{semi-stub}}

		+	{{nav TRS-80}}
	[[Category:Tandy TRS-80 Computers]]		[[Category:Tandy TRS-80 Computers]]

← Older revision		Revision as of 03:15, 21 May 2023
Line 3:		Line 3:
	There are many good emulators for the system, but I recommend [[trs80gp]] which emulates multiple emulates all of the Z80 TRS-80 systems plus the Model 16, Tandy 6000, and the [[TRS-80 MC-10]], a small, low price home computer.		There are many good emulators for the system, but I recommend [[trs80gp]] which emulates multiple emulates all of the Z80 TRS-80 systems plus the Model 16, Tandy 6000, and the [[TRS-80 MC-10]], a small, low price home computer.

−	~~{{semi-stub}}~~	+	[[Category:Tandy TRS-80 Computers]]
−
−	[[:Category: Tandy TRS-80 Computers]]

← Older revision		Revision as of 03:04, 21 May 2023
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	{{semi-stub}}		{{semi-stub}}
		+
	[[:Category: Tandy TRS-80 Computers]]		[[:Category: Tandy TRS-80 Computers]]

← Older revision		Revision as of 03:02, 21 May 2023
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	{{semi-stub}}		{{semi-stub}}
−	[[:Category:Tandy TRS-80 Computers]]	+	[[:Category: Tandy TRS-80 Computers]]