Editing IBM TopView (section)

{{short description|Former front-end to DOS}}
{{Infobox OS
| name = TopView
| logo = IBM TopView Logo.svg
| screenshot = Topviewvirtualpc.jpg
| caption = A typical TopView session
| developer = [[IBM]]
| source_model = [[Closed source]]
| supported_platforms = [[x86]], ([[DOS]] 2.0 – 6.0)
| working_state = Discontinued
| released = {{Start date and age|1985|03}}<ref name=ibmtopviewann1984>{{cite web |publisher=IBM |type=Announcement letter |date=1984-08-14 |title=IBM Personal Computer Programming Enhanced With TopView |url=https://www.ibm.com/docs/en/announcements/archive/ENUS284-282}}</ref><ref name=ibmtopview1985>{{cite web |publisher=IBM |type=Announcement letter |date=1985-02-19 |title=TopView and TopView Programmer's Toolkit Available For Shipment Week Of March 8, 1985 Enhanced Warranty Provisions |url=https://www.ibm.com/docs/en/announcements/archive/ENUS285-071}}</ref><ref name="dvorak">{{cite news |url=https://www.dvorak.org/blog/whatever-happened-to-ibms-topview/ |author-first=John C. |author-last=Dvorak |title=Whatever Happened to Topview? |date=2007-01-16}}</ref>
| latest_release_version = 1.12
| latest_release_date = {{Start date and age|1987|04|02}}
| marketing_target = Business
| ui = [[Text-based user interface|Text-based]] ([[text mode]])
| license = [[Proprietary software|Proprietary]]
}}

'''TopView''' is the first [[object-oriented]], [[Computer multitasking|multitasking]], and windowing, [[personal computer]] [[operating environment]] for [[IBM PC DOS|PC DOS]] developed by [[IBM]], announced in August 1984<ref name="ibmtopviewann1984"/> and shipped in March 1985.<ref name="ibmtopview1985"/><ref name="dvorak"/> TopView provided a [[text-mode]] (although it also ran in graphics mode) [[operating environment]] that allowed users to run more than one application at the same time on a [[IBM PC compatible|PC]]. IBM demonstrated an early version of the product to key customers before making it generally available, around the time they shipped their new [[IBM Personal Computer AT|PC AT]] computer.