Editing BASIC A+ (section)

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{{Infobox software
| name                   = BASIC A+
| logo                   = <!-- Image name is enough -->
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| caption                = 
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| collapsible            = 
| author                 = 
| developer              = [[Optimized Systems Software]]
| released               = {{Start date and age|1983}}
| discontinued           = 
| latest release version = 
| latest release date    = <!-- {{Start date and age|YYYY|MM|DD|df=yes/no}} -->
| latest preview version = 
| latest preview date    = <!-- {{Start date and age|YYYY|MM|DD|df=yes/no}} -->
| programming language   = 
| operating system       = [[Atari 8-bit]]
| platform               = 
| size                   = 
| language               = 
| language count         = <!-- Number only -->
| language footnote      = 
| genre                  = [[BASIC]]
| license                = Copyright © 1983 [[Optimized Systems Software]] [[Proprietary software|Proprietary]]
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}}

'''BASIC A+''' is an implementation of the [[BASIC]] programming language for [[Atari 8-bit computers]] introduced by [[Optimized Systems Software]] in 1981. It was developed by the team that created [[Atari BASIC]], which shipped with each computer, and is compatible. BASIC A+.<ref>{{cite magazine |last=DeVore |first=Richard |title=Product Reviews, BASIC A+ |journal=Antic |date=May 1983 |volume=2 |issue=2 |url= http://www.atarimagazines.com/v2n2/productreviews.html}}</ref> BASIC A+ adds new features to the language, such as <code>IF..ELSE..ENDIF</code> statements, support for hardware features like [[Sprite (computer graphics)|player/missile graphics]], and commands for [[debugging]]. While Atari BASIC is an 8 [[kilobyte|KB]] ROM cartridge, BASIC A+ is [[floppy disk]] based and uses 15 KB of the computer's RAM, leaving 23 KB available for user programs in a 48 KB Atari 800. BASIC A+ shipped with a supplement to the Atari BASIC reference manual as its documentation.

Optimized Systems Software followed BASIC A+ with the cartridge-based BASIC XL, then BASIC XE.