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3.00.jpg 30.4 kB 1 05-Jul-2015 22:29 Roland B. Wassenberg 3.00.jpg
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3.04.jpg 30.4 kB 1 05-Jul-2015 22:29 Roland B. Wassenberg 3.04.jpg
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3.05.jpg 30.2 kB 1 05-Jul-2015 22:29 Roland B. Wassenberg 3.05.jpg
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OSS_BASIC_A_Plus_3.00.xex 15.5 kB 1 05-Jul-2015 22:28 Roland B. Wassenberg OSS_BASIC_A_Plus_3.00.xex
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OSS_BASIC_A_Plus_3.00_to_3.04.... 92.2 kB 1 05-Jul-2015 22:26 Roland B. Wassenberg OSS_BASIC_A_Plus_3.00_to_3.04.atr
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OSS_BASIC_A_Plus_3.03.atr 92.2 kB 1 13-May-2017 22:28 Roland B. Wassenberg OSS_BASIC_A_Plus_3.03
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OSS_BASIC_A_Plus_3.04.xex 15.1 kB 1 05-Jul-2015 22:28 Roland B. Wassenberg OSS_BASIC_A_Plus_3.04.xex
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OSS_BASIC_A_Plus_3.05.xex 16.4 kB 1 05-Jul-2015 22:28 Roland B. Wassenberg OSS_BASIC_A_Plus_3.05.xex
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OSS_BASIC_A_Plus_3.1_Manual-Ma... 13,863.6 kB 1 05-Jul-2015 22:26 Roland B. Wassenberg OSS_BASIC_A_Plus_3.1_Manual-May_1981-2.pdf
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OSS_BASIC_A_Plus_3.1_Manual-Ma... 1,504.4 kB 1 05-Jul-2015 15:55 Roland B. Wassenberg OSS_BASIC_A_Plus_3.1_Manual-May_1981.pdf
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OSS_BASIC_A_Plus_Demo_Disk.pdf 766.3 kB 1 05-Jul-2015 22:26 Roland B. Wassenberg OSS_BASIC_A_Plus_Demo_Disk.pdf
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OSS_BASIC_A_Plus_all_versions_... 92.2 kB 1 05-Jul-2015 22:27 Roland B. Wassenberg OSS_BASIC_A_Plus_all_versions_with_DOS_XL_2.30p_Color.atr
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OSS_BASIC_A_Plus_version_3.05_... 92.2 kB 1 05-Jul-2015 22:27 Roland B. Wassenberg OSS_BASIC_A_Plus_version_3.05_with_MS-DOS.atr
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OSS_Basic_A_Plus_Demo_Disk.atr 92.2 kB 1 05-Jul-2015 22:27 Roland B. Wassenberg OSS_Basic_A_Plus_Demo_Disk.atr
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OSS_OS-A_plus_Professional_v2.... 92.2 kB 1 05-Jul-2015 22:27 Roland B. Wassenberg OSS_BASIC_A_Plus_version_3.05_with_MS-DOS.atr
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oss-quick-reference-card-basic... 3,423.3 kB 1 07-May-2019 21:53 Roland B. Wassenberg oss-quick-reference-card-basic-a-plus.pdf

This page (revision-15) was last changed on 07-May-2019 21:53 by Roland B. Wassenberg  

This page was created on 05-Jul-2015 15:55 by Roland B. Wassenberg

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At line 1 changed 5 lines
!!!OSS Basic A+ ; Copyright (C) 1981 OSS, Inc.
Atari BASIC had been designed to fit in a single 8k cartridge, with an optional second cartridge adding additional capability (the Atari 800 home computer featured two cartridge slots). However, the second cartridge was never produced.
Instead, OSS produced a disk-based product called BASIC A Plus (or BASIC A+), which was compatible with Atari BASIC but corrected several bugs and added quite a few features. Among the notable features were PRINT USING (for formatted output), trace and debug enhancements, direct DOS commands, and explicit support for the Atari computers' exceptional graphics hardware.
Because BASIC A+ had to be purchased, programs developed using its extended features could not be shared with people who did not own the interpreter.
Available on disk only.
!!!OSS Basic A+
Copyright (C) 1981 OSS, Inc.
At line 4 added 2 lines
!Background
[Atari BASIC] was originally written by a 3rd party company, Shepardson Microsystems. An early version was delivered in late 1978 for demonstration purposes so Atari could show it at the CES in January 1979. To the programmer's surprise, they learned that Atari started burning this version to ROM cartridges as the final product. This was in spite of a number of bugs having been found and corrected in the meantime.
At line 7 added 6 lines
Shortly after the release of Atari BASIC, the owner of Shepardson decided to dissolve the company. The Atari staff formed their own company, Optimized Systems Software (OSS), and purchased the licenses to the Atari products. Basic A+ was one of OSS's first products, consisting largely of the bug-fixed versions of Atari BASIC along with a few expansions. Among the notable additions were PRINT USING (for formatted output), trace and debug enhancements, and direct DOS commands.
Too large to fit on a 8k ROM, the product was sold on disk only. Because BASIC A+ had to be purchased, programs developed using its extended features could not be shared with people who did not own the interpreter. A+ was never particularly popular, and soon superseded by the greatly improved [Basic XL].
* [OSS BASIC A+ in Wikipedia|https://en.wikipedia.org/wiki/BASIC_A%2B]\\
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* [OSS Quick reference card for Basic A+|oss-quick-reference-card-basic-a-plus.pdf] ; size: 3.4 MB ; 8 pages ; thank you so much Bill Lange for finding this very rare cards. :-)
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!!ATR-Images
* [OSS_BASIC_A_Plus_all_versions_with_DOS_XL_2.30p_Color.atr] ; 3.00, 3.04 and 3.05 versions of BASIC A+ on a single diskette
* [OSS_BASIC_A_Plus_3.00_to_3.04.atr] ; patch program in BASIC to update BASIC A+ version 3.00 to 3.04.
* [OSS_Basic_A_Plus_Demo_Disk.atr] ; demo diskette for BASIC A+ without DOS
* [OSS_BASIC_A_Plus_version_3.05_with_MS-DOS.atr] ; latest version with rare to find MS-DOS
* [OSS_BASIC_A_Plus_3.03.atr]
!!XEX-Files
* [OSS_BASIC_A_Plus_3.00.xex]
* [OSS_BASIC_A_Plus_3.04.xex]
* [OSS_BASIC_A_Plus_3.05.xex]
!!Images
[{Image src='3.00.jpg' width=452 height=107 }]
OSS Basic A+ version 3.00\\
\\
[{Image src='3.04.jpg' width=442 height=105 }]
OSS Basic A+ version 3.04\\
\\
[{Image src='3.05.jpg' width=448 height=102 }]
OSS Basic A+ version 3.05\\
\\
Version Date Modified Size Author Changes ... Change note
15 07-May-2019 21:53 2.653 kB Roland B. Wassenberg to previous
14 07-May-2019 21:52 2.656 kB Roland B. Wassenberg to previous | to last
13 07-May-2018 21:32 2.472 kB Maury Markowitz to previous | to last
12 03-May-2018 20:10 2.475 kB Maury Markowitz to previous | to last Atari Basic ==> Atari BASIC
11 01-May-2018 03:33 2.463 kB Roland B. Wassenberg to previous | to last
10 26-Apr-2018 16:57 2.463 kB Maury Markowitz to previous | to last
9 26-Apr-2018 15:45 2.475 kB Maury Markowitz to previous | to last
8 13-May-2017 22:30 2.074 kB Roland B. Wassenberg to previous | to last
7 13-May-2017 22:28 2.058 kB Roland B. Wassenberg to previous | to last
6 05-Jul-2015 23:09 2.027 kB Roland B. Wassenberg to previous | to last
5 05-Jul-2015 23:08 1.985 kB Roland B. Wassenberg to previous | to last
4 05-Jul-2015 22:56 1.28 kB Roland B. Wassenberg to previous | to last
3 05-Jul-2015 22:42 1.153 kB Roland B. Wassenberg to previous | to last
2 05-Jul-2015 15:55 0.09 kB Roland B. Wassenberg to previous | to last
1 05-Jul-2015 15:55 0.033 kB Roland B. Wassenberg to last
« This page (revision-15) was last changed on 07-May-2019 21:53 by Roland B. Wassenberg