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  2. "Hello, World!" program - Wikipedia

    en.wikipedia.org/wiki/"Hello,_World!"_program

    program handwritten in the C language and signed by Brian Kernighan (1978) While small test programs have existed since the development of programmable computers, the tradition of using the phrase "Hello, World!" as a test message was influenced by an example program in the 1978 book The C Programming Language, [2] with likely earlier use in BCPL.

  3. Xournal - Wikipedia

    en.wikipedia.org/wiki/Xournal

    Xournal is an open source tool for annotating PDF files. It supports pen , mouse , and keyboard input. [ 1 ] It and the related Xournal++ are commonly used for adding annotations and electronic signatures to PDF files, especially on Linux desktops.

  4. List of proofreader's marks - Wikipedia

    en.wikipedia.org/wiki/List_of_proofreader's_marks

    These are usually handwritten on the paper containing the text. Symbols are interleaved in the text, while abbreviations may be placed in a margin with an arrow pointing to the problematic text. Different languages use different proofreading marks and sometimes publishers have their own in-house proofreading marks.

  5. XPS Annotator - Wikipedia

    en.wikipedia.org/wiki/XPS_Annotator

    Like PDF documents, Open XML Paper Specification (XPS) documents support the annotation feature, [6] however, the annotations features in XPS documents are still limited. XPS Annotator has the ability to add annotations to these XPS documents. These annotations can include many types of content such as typed text, handwritten notes, or Web links.

  6. Optical character recognition - Wikipedia

    en.wikipedia.org/wiki/Optical_character_recognition

    Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...

  7. C syntax - Wikipedia

    en.wikipedia.org/wiki/C_syntax

    A snippet of C code which prints "Hello, World!". The syntax of the C programming language is the set of rules governing writing of software in C. It is designed to allow for programs that are extremely terse, have a close relationship with the resulting object code, and yet provide relatively high-level data abstraction.

  8. C (programming language) - Wikipedia

    en.wikipedia.org/wiki/C_(programming_language)

    This is an accepted version of this page This is the latest accepted revision, reviewed on 13 December 2024. General-purpose programming language "C programming language" redirects here. For the book, see The C Programming Language. Not to be confused with C++ or C#. C Logotype used on the cover of the first edition of The C Programming Language Paradigm Multi-paradigm: imperative (procedural ...

  9. Comparison of note-taking software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_note-taking...

    editable note metadata (date/time, location, weather, motion activity, music playing, step count) Evernote: No No Yes Yes Yes Yes [Notes 14] Yes Yes Yes Yes Check-box, line, tags Business and personal notes integrated in same client; businesses have control over business notes, but cannot see personal notes Gnote: No No Yes Yes No No No No No No ?