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Typing is the process of writing or inputting text by pressing keys on a typewriter, computer keyboard, mobile phone, or calculator. It can be distinguished from other means of text input, such as handwriting and speech recognition. Text can be in the form of letters, numbers and other symbols. The world's first typist was Lillian Sholes from ...
The term "PC" is an initialism for "personal computer". While the IBM Personal Computer incorporated the designation into its model name, the term originally described personal computers of any brand. In some contexts, "PC" is used to contrast with "Mac", an Apple Macintosh computer. [6] [7] [8] [9]
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7. The format is a subset of a COS ("Carousel" Object Structure) format. A COS tree file consists primarily of objects, of which there are nine types: Boolean values, representing true or false; Real numbers; Integers
Definition and purpose. An operating system is difficult to define,[7]but has been called "the layer of softwarethat manages a computer's resources for its users and their applications".[8] Operating systems include the software that is always running, called a kernel—but can include other software as well. [7][9]The two other types of ...
Emulation refers to the ability of a computer program in an electronic device to emulate (or imitate) another program or device. Many printers, for example, are designed to emulate HP LaserJet printers because so much software is written for HP printers. If a non-HP printer emulates an HP printer, any software written for a real HP printer will ...
Technical writing is a labor-intensive form of writing that demands accurate research of a subject and the conversion of this content into a written format, style, and reading level the end-user will easily understand or connect with. There are two main forms of technical writing. By far, the most common form of technical writing is procedural ...
Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...