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Soda PDF is an application used to view, create, and edit Portable Document Format (PDF) files. [3] The software was developed by LULU Software in 2010, based in Montreal, Quebec , Canada . Features
PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...
The kernel and data structures such as disk buffers could be relocated in the High Memory Area (HMA), the first 64 KB of extended memory which are accessible in real mode. This freed up the equivalent amount of critical "base" or conventional memory, the first 640 KB of the PC's RAM – the area in which all DOS applications run. [18]
Original CD-ROM drives could read data at about 150 kB/s, 1× constant angular velocity (CAV), [1] the same speed of compact disc players without buffering. As faster drives were released, the write speeds and read speeds for optical discs were multiplied by manufacturers, far exceeding the drive speeds originally released onto the market.
Mac OS X has built-in PDF support, both for creation as part of the printing system and for display using the built-in Preview application. Older PDF files are supported by almost all modern e-book readers, tablets and smartphones. Newer PDF files may not display properly on older e-readers, may not open, or may crash them.
3 1 ⁄ 2-inch 720 KB floppy support Token Ring network IBM PC Convertible: April 1987: PC DOS 3.3 IBM: 3 1 ⁄ 2-inch 1.44 MB floppy support, extended partitions: IBM Personal System/2: November 1987: MS-DOS 3.31 Compaq: Hard disk partitions over 32 MB May 1988: DR DOS 3.31 Digital Research: ROMable DOS July 1988: IBM DOS 4.0 IBM: DOS Shell ...
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