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Chapter 1

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Information Studies
IST 195

Chapter 1 • Digital literacy: current knowledge +understanding computers, mobile devices, Internet • Computer: electronic device, operating under the control of instructions stored in its own memory, that can accept data (input), process the data according to specified rules, produce information (output), and store the information for future use. • Hardware: electric, electronic, and mechanical components • Personal computer (PC): computer than can perform all of its input, processing, output, storage activities by itself and is intended to be used by one person at a time (laptops, tablets, desktops) • Mobile computer: portable personal computer, designed so a user can carry it from place to place • User: Anyone who interacts with a computer or mobile device, utilizes the information it generates • Laptop: notebook computer, thin, lightweight mobile computer with screen in its lid and keyboard in its base. • Tablet: thin, lighter weight mobile computer that has a touch screen • Touch screen gestures: • Tap: quickly touch and release one finger one time • Double tap: quickly touch and release one finger two times • Press and hold: press and hold one finger to cause an action to occur, or until action occurs • Drag/slide: press and hold one finger on an object and then move finger to the new location • Swipe: press and hold one finger and then move the finger horizontally or vertically on screen • Stretch (zoom in): move two fingers apart • Pinch (zoom out): more two fingers together • Desktop: personal computer designed be stationary location, where all components fit on or under a desk or table. • Server: computer dedicated to providing 1+ services to other computers/devices on a network. • Network: collection of computers/devices connected together (wirelessly). • Mobile device: computing device small enough to hold in your hand. • Smartphone: internet capable phone: calendar, appointment book, address book, calculator, notepad, games, several other apps • Text message: short note, less than 300 characters, sent to/from smartphone to other mobile • Picture message: photo/image, sound/text sent to/from smartphone to other mobile • Video message: short video clip, 30 seconds, sent to/from smartphone to other mobile • Digital camera: device that allows you to take photos +store the photographed images digitally. • Portable media player: mobile device which you can store/organize/play/view digital media • Earbuds: small speakers that rest inside each ear canal • E-book reader: (e-reader): mobile device that is used primarily for reading e-books • E-book: digital book, electronic version of a printed book • Game console: mobile computing device designed for single player/multiplayer • Gaming: • Gamepads, air gestures, voice commands, fitness accessories, games, action +adventure, education, music and fitness, puzzle and strategy, racing and sports, role playing, simulation • Data: collection of unprocessed items, can include text, numbers, images, audio, video • Information: meaning to users • Input device: hardware component allow you enter data +instructions into computer/mobile device • Keyboard: keys you press to enter data +instructions to a computer/mobile device • Pointing device: input device allows user control small symbol on a screen • Mouse: pointing device fits under palm of your hand comfortably • Touchpad: small, flat, rectangular pointing device that is sensitive to pressure +motion • Mouse operations: Point, click, right click, double click, drag • Microphone: input device that enables you to speak into a computer/mobile device • Headset: contains both a microphone and speaker • Webcam: digital video camera that allows you to capture video/audio input for your computer • Scanner: Light sensing input device convert printed text +image into form computer process • Output device: hardware component that conveys information from a computer/mobile device to 1+ people • Printer: produce text +graphics on a physical medium • Displays: output device conveys text, graphics, video information • Speakers: Allow you to hear audio • Memory: electronic components store instructions waiting be executed and date needed by those instructions • Storage: holds data, instructions, information for future use • Storage media: keeps data, instruction, and information • Storage device: records/retrieves items to/from storage media • Hard disks: storage device that contains 1+ inflexible, circular platters that use magnetic particles to store data, instructions, information • Solid state drive (SSD): storage device that typically uses flash memory to store data, instructions, and information • USB flash drive: portable flash memory storage device you plug in a USB port, special easily accessible opening on a computer or mobile device • Memory card: removable flash memory • Optical disc: type of storage media that consists of a flat, round, portable metal disc made of metal, plastic, lacquer • Cloud storage: Internet service that provides storage to computer users • Backup: duplicate content on storage medium can use in case original is lost, damaged, destroyed • Internet: worldwide collection of computer networks that connects millions of businesses, government agencies, educational institutions, and individuals • Internet ser
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