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APL uses the term operator in Heaviside’s sense as a moderator of a function as opposed to some other programming language's use of the same term as something that operates on data, ref. relational operator and operators generally.
Dyalog APL was first released by British company Dyalog Ltd. [107] in 1983 [108] and, as of 2018, is available for AIX, Linux (including on the Raspberry Pi), macOS and Microsoft Windows platforms. It is based on APL2, with extensions to support object-oriented programming, [109] functional programming, [110] and tacit programming. [111]
As of 2010, Unicode allows APL to be stored in text files, published in print and on the web, and shared through email and instant messaging. Entering APL characters still requires the use of either a specific input method editor or keyboard mapping, or of a specific touch interface. APL keyboard mappings are available for free for the most ...
When APL\360 was first introduced in 1968, there were no built-in means by which a user could directly access data from outside of the APL system. Thus, starting in 1969, IBM developed the shared variable facility. [2] Following APL.SV, the IBM VS APL and APL2 program products also supported shared variables, as did the IBM 5100 line of computers.
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The WS-1 was a laptop manufactured by the Japanese computer company Ampere, Inc.Unveiled in June 1984 as the BIG.APL and later released as the WS-1 in November 1985, the laptop was noted by journalists for its striking case design—rendered by Kumeo Tamura, one of the principal designers of the Datsun 240Z.
Due to the lack of video software for domestic television, video software was imported from abroad. When the television program was shown on television, it was mostly dubbed. There was a character limit for a small TV screen at a lower resolution, and this method was not suitable for the poor elderly and illiterate, as was audio dubbing.
Non-modal or modeless dialog boxes are used when the requested information is not essential to continue, and so the window can be left open while work continues elsewhere. A type of modeless dialog box is a toolbar which is either separate from the main application, or may be detached from the main application, and items in the toolbar can be used to select certain features or functions of the ...