OSS Basic A+#

Copyright (C) 1981 OSS, Inc.

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.

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 A+ was never particularly popular, and soon superseded by the greatly improved Basic XL.

Manuals#

ATR-Images#

XEX-Files#

Images#

OSS Basic A+ version 3.00

OSS Basic A+ version 3.02

OSS Basic A+ version 3.03

OSS Basic A+ version 3.04

OSS Basic A+ version 3.05

Review#

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Kind Attachment Name Size Version Date Modified Author Change note
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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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3.02.png 9.1 kB 1 31-Oct-2023 02:15 Roland B. Wassenberg 3.02.png
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3.03.png 40.9 kB 1 31-Oct-2023 00:46 Roland B. Wassenberg 3.03.png
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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_3.02.xex 15.5 kB 1 07-Feb-2023 07:56 Roland B. Wassenberg OSS_BASIC_A_Plus_3.02.xex
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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_3.03.xex 15.5 kB 1 31-Oct-2023 00:43 Roland B. Wassenberg OSS_BASIC_A_Plus_3.03
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OSS_BASIC_A_Plus_3.04.xex 15.1 kB 2 07-Feb-2023 07:56 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
atr
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
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