Tokenized BASIC - Revision history

Dan Tobias at 13:15, 24 July 2022

2022-07-24T13:15:38Z

Dan Tobias at 14:13, 8 September 2019

2019-09-08T14:13:17Z

Kyz at 12:30, 4 October 2015

2015-10-04T12:30:16Z

Dan Tobias at 00:25, 13 August 2014

2014-08-13T00:25:13Z

Dan Tobias at 20:27, 10 August 2014

2014-08-10T20:27:31Z

Dan Tobias at 14:55, 24 April 2014

2014-04-24T14:55:03Z

Dan Tobias: /* Links and references */

2013-08-21T11:53:28Z

‎Links and references

Dan Tobias: /* Links and references */

2013-08-21T02:00:13Z

‎Links and references

Jonnosan: add link to Sinclair BASIC

2013-05-22T20:35:53Z

add link to Sinclair BASIC

Jonnosan at 20:35, 22 May 2013

2013-05-22T20:35:25Z

@@ Line 33: / Line 33: @@
 * [[Sinclair BASIC tokenized file]] (for ZX80, ZX81 and Spectrum)
 * [[Sol BASIC tokenized file]]
 * [[TI BASIC tokenized file]] (TI 99/4A)
 * [[Tiny BASIC tokenized file]] (ran on KIM-1 and some other early machines)

@@ Line 22: / Line 22: @@
 * [[BBC BASIC tokenized file]]
 * [[CCE MC-1000 BASIC tokenized file]]
-* [[Coleco Adam SmartBASIC tokenized file]]
+* [[Coleco ADAM SmartBASIC tokenized file]]
 * [[Commodore BASIC tokenized file]]
 * [[Compucolor BASIC tokenized file]]

@@ Line 15: / Line 15: @@
 Specific tokenized BASIC formats:
 * [[APF Imagination Machine BASIC tokenized file]]
 * [[Apple Integer BASIC tokenized file]]

@@ Line 26: / Line 26: @@
 * [[Exidy Sorcerer BASIC tokenized file]]
 * [[GW-BASIC tokenized file]] (or BASICA) (IBM PC and compatibles)
 * [[MBASIC tokenized file]] (Microsoft BASIC for CP/M)
 * [[NASCOM BASIC tokenized file]]

@@ Line 20: / Line 20: @@
 * [[Atari BASIC tokenized file]]
 * [[BBC BASIC tokenized file]]
 * [[Coleco Adam SmartBASIC tokenized file]]
 * [[Commodore BASIC tokenized file]]

@@ Line 7: / Line 7: @@
 }}
-'''Tokenized BASIC''' is a method of storing programs in the [[BASIC]] programming language by encoding the various keywords of the language as "tokens" instead of as plain text. Since the tokens are shorter byte sequences than the full text of the keywords, such programs take up less storage space in memory and in external storage such as disks or tapes, which was a significant concern in an era when computers were much more limited in memory and disk space than they are at present. It can also take less processing time for the interpreters to parse the code when it is in the form of tokens, which is another important concern for slower computers. Since computers are much faster and have much more memory and disk space now, tokenized languages are rarely used for source code storage, though compilers may generate intermediate data that is tokenized in some way in the course of producing executable code from text-based sources.
+'''Tokenized BASIC''' is a method of storing programs in the [[BASIC]] programming language by encoding the various keywords of the language as "tokens" instead of as plain text. Since the tokens are shorter byte sequences than the full text of the keywords, such programs take up less storage space in memory and in external storage such as disks or tapes, which was a significant concern in an era when computers were much more limited in memory and disk space than they are at present. It can also take less processing time for the interpreters to parse the code when it is in the form of tokens, which is another important concern for slower computers (and is the reason some languages such as [[Python]] create [[bytecode]] files from the source code to help their interpreter even now). Since computers are much faster and have much more memory and disk space now, tokenized languages are rarely used for source code storage, though compilers may generate intermediate data that is tokenized in some way in the course of producing executable code from text-based sources.
 In its heyday of the 1960s through 1980s, BASIC existed in many dialects, designed for specific machine platforms, and the format of tokenized programs was different in each. On systems where file types were commonly identified using extensions, '''.BAS''' was usually used for BASIC programs, while other systems had their own ways of identifying file types and often had a type code specific to their own platform's BASIC interpreter (or multiple codes for different versions of BASIC, such as Apple II DOS's 'I' for Integer BASIC and 'A' for Applesoft floating-point BASIC).

← Older revision		Revision as of 11:53, 21 August 2013
Line 41:		Line 41:
	* [http://www.pagetable.com/?p=46 Microsoft 6502 BASIC archeology]		* [http://www.pagetable.com/?p=46 Microsoft 6502 BASIC archeology]
	* [http://www.mess.org/ MESS: emulates many of the platforms these BASICs run on]		* [http://www.mess.org/ MESS: emulates many of the platforms these BASICs run on]
		+	* [http://jsmess.textfiles.com/ JSMESS: JavaScript version of MESS]

← Older revision		Revision as of 02:00, 21 August 2013
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	* [http://edmond.orignac.pagesperso-orange.fr/detokenizer.html Detokenizers for Microsoft BASICs]		* [http://edmond.orignac.pagesperso-orange.fr/detokenizer.html Detokenizers for Microsoft BASICs]
	* [http://www.pagetable.com/?p=46 Microsoft 6502 BASIC archeology]		* [http://www.pagetable.com/?p=46 Microsoft 6502 BASIC archeology]
		+	* [http://www.mess.org/ MESS: emulates many of the platforms these BASICs run on]

@@ Line 28: / Line 28: @@
 * [[NASCOM BASIC tokenized file]]
 * [[Ohio Scientific BASIC tokenized file]]
-* [[Sinclair ZX81 BASIC tokenized file]]
+* [[Sinclair BASIC tokenized file]] for ZX80, ZX81 and Spectrum
 * [[Sol BASIC tokenized file]]
 * [[TI BASIC tokenized file]] (TI 99/4A)