photo illustration
A type of computer art that begins with a digitized photograph. Using special image enhancement software, the artist can then apply a variety of special effects to transform the photo into a work of art.
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- photo scanner
A type of optical scanner designed especially for scanning photographs. Photo scanners are smaller than general-purpose scanners but offer high resolution. A typical photo scanner is a sheet-fed scanner that can scan 3×5-inch or 4×6-inch photographs at 300 dpi or higher resolution. Some high-end photo scanners can also scan negatives and slides.
- photoshopping
A slang term used to describe any image that has been digitally manipulated or altered.
- phrase search
A type of search that allows users to search for documents containing an exact sentence or phrase, rather than single keywords.
- phreaking
Closely related to hacking, using a computer or other device to trick a phone system. Typically, phreaking is used to make free calls or to have calls charged to a different account.
- physical
Refers to anything pertaining to hardware. The opposite of physical is logical or virtual, which describe software objects. For example, physical memory refers to the actual RAM chips installed in a computer. Virtual memory, on the other hand, is an imaginary storage area used by programs. A physical data structure refers to the actual organization […]