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Elevator algorithm or SCAN, a disk scheduling algorithm; Image scanning, an optical scan of images, printed text, handwriting or an object; Optical character recognition, optical recognition of printed text or printed sheet music; Port scanner, in computer networking; Prefix sum, an operation on lists that is also known as the scan operator
It used a photomultiplier tube to detect light at a given point and produced an amplified signal that a computer could read and store into memory. The computer of choice at the time was the SEAC mainframe; the maximum horizontal resolution that the SEAC was capable of processing was 176 pixels. The first image ever scanned on this machine was a ...
Port scanner, in computer networking; Virus scanner; Vulnerability scanner, a computer program that probes for weaknesses; Lexical analyzer, a computer program; Scanner (software), a disk space analyzing and management tool for Microsoft Windows
Raster-scan display sample; visible gaps between the horizontal scan lines divide each character. A raster scan, or raster scanning, is the rectangular pattern of image capture and reconstruction in television. By analogy, the term is used for raster graphics, the pattern of image storage and transmission used in most computer bitmap image systems.
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 ...
A port scan or portscan is a process that sends client requests to a range of server port addresses on a host, with the goal of finding an active port; this is not a nefarious process in and of itself. [1] The majority of uses of a port scan are not attacks, but rather simple probes to determine services available on a remote machine.