INPUT AND OUTPUT DEVICES In computing‚ input/output‚ or I/O‚ refers to the communication between an information processing system (such as a computer)‚ and the outside world possibly a human‚ or another information processing system. Inputs are the signals or data received by the system‚ and outputs are the signals or data sent from it. The term can also be used as part of an action; to "perform I/O" is to perform an input or output operation. I/O devices are used by a person (or other system) to
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Optical Scanners An optical scanner is a hardware input device that allows a user to take an image or text and convert it into a digital file‚ allowing the computer to read or display the scanned object. Features of the optical scanner include-its design‚ software compatibility‚ type of feeder‚ speed‚ resolution‚ etc. Some advantages of the optical scanner include : • Easy to use • Continuous‚ detailed‚ and scaled true-colour images for documentation and interpretation • Portable and/or stable
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Faculty of Engineering‚ the Built Environment & Information Technology Technology for tomorrow 2013 WCI1601 Module Guide School of Information and Communication Technology Missionvale Campus IT Essentials 1 – WCI1601 Compiled by: NB Dyira Faculty of Engineering‚ the Built Environment & Information Technology Technology for tomorrow 2013 WCI1601 Module Guide School of Information and Communication Technology Missionvale Campus IT Essentials 1 – WCI1601 Compiled
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“silhouette sign” may not be achieved. These circumstances may result in diagnostic errors regarding pleural effusions‚parenchymal consolidation‚ and alveolar-interstitial syndrome (Gardelli et al.‚2012). Ultrasound (US): With the advent of portable scanners‚ US has become an important imaging modality in ICU. It
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Standard Operating Procedures Radiology 1. PURPOSE: a. To provide maximum quality radiographs in an efficient amount of time. b. To establish responsibilities‚ procedures‚ policies‚ and techniques which prevent excessive radiation exposure to patients and staff. c. To set guidelines to be followed for checking radiology systems performance and maintaining optimum image quality and equipment safety for the technologist who operate these systems and the patients as well
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Student NO.: 130070727 Assignment 3-1 Topic 3: Input Output Devices MULTIPLE CHOICE: 1-QWERTY.(d) 2-mouse.(b) 3-multitouch.(c) 4-scanners.(d) 5-MICR.(a) 6-microphone.(c) 7-contrast ratio.(b) 8-e-book readers.(a) 9-mobile DTV.(d) 10-ergonomics.(a) MATCHING: 1-toggle key.(i) 2-mouse.(e) 3-stylus.(h) 4-scanners.(g) 5-UPC.(j) 6-digital camera.(b) 7-dot pitch.(c) 8-active display area.(a) 9-plotters.(f) 10-MagicJack.(d) OPEN-ENDED 1-Input : is any data
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Purpose‚ Scope and Objectives The client‚ Nisei Boutique currently has to manually track inventory and reorder high in demand items. The client is in need of an automated inventory system but has a very limited budget. Nisei Boutique would like to improve the quality of business by establishing long-lasting relationships with their customers and having quality items readily available at all times. After meeting with the client and reviewing the boutique’s existing inventory procedures for control
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DEVICES Keyboard - Consist of typewriter-like keys that enable users to enter information into a computer. Mouse - Control the movement of a cursor or pointer on a display screen. The most common pointing device is the mouse. Scanner - Copies a picture or document into the computer Camera - Allows you to input photographs into the computer Graphic tablet - A pressure sensitive pad that is plugged into the computer. When you draw on the tablet with a special pen
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laptops a stylus or the users finger are touched gently on the ad and as it is moved the curser on the screen moves. · Joysticks are commonly used to interact with computer games‚ although they are also used in other circumstances (hospital scanners) like a tracker ball movement of the joystick is reflected by the movement on the screen · A Light pen uses specialist software and is used in specialist situations. The light pen works by being touched on the screen. As the pen is moved
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practice to assist visually impaired users main ly due to cost and usability issues. Trinetra is a barcode-based solution comprising common of the shelf components‚ such as an Internet & Bluetooth-enabled cell phone ‚ text-to-speech software and a portable barcode reader[2]. The user’s cell phone receives information fro m the barcode reader. When an ID is received‚ mobile application matches it with a most recently used ID. When no match is found‚ phone interacts with the server over the Internet
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