The Keyboard and Mouse Are Examples Of
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Presents: BEGINNING COMPUTER BASICS
Presents: BEGINNING COMPUTER BASICS By Angie Harris Adapted from the Texas State Library’s TEAL for All Texans Student Resources Manual Beginning Computer Basics Topics Introducing the Computer Basic Computer Equipment Meet Your Desktop Goals and Objectives • Be introduced to basic components of the computer • Learn common computer terms • Become familiar with basic computer hardware and software • Become familiar with the computer mouse and keyboard • Learn about the desktop Introducing the Computer What is a Computer? An electronic device that accepts input, processes data, provides storage and retrieval and provides output for the user. You can use a computer to type documents, send email, browse the internet, handle spreadsheets, do presentations, play games, and more. Hardware/Software A computer is made up of only two components: hardware and software. Anything you buy for your computer can be classified as either hardware or software. Hardware: is any part of your computer that has a physical structure. If you can touch it, it is hardware. Software: the brains of the computer, is any set of instructions that tells the hardware what to do and helps the user accomplish a certain task Hardware Hardware consists of two components, input and output devices. – Input Device An input device allows us to put information into the computer. Examples include: Mouse, keyboard, microphone, flash drive or scanner – Output Devices An output device displays (or puts out) information from a computer in either a visual or auditory format. Examples include: Monitor, Speakers, headphones or printer Basic Computer Equipment Monitor Speakers Console Printer Keyboard Mouse Console Console: The console, or system unit, is the heart of your computer. -
Siouxland Fabricating Inc.: Windows USB Devices List All Detected USB Devices (56 Items) Generated on Oct 02, 2014 @ 08:28 Am
Siouxland Fabricating Inc.: Windows USB Devices List all detected USB devices (56 items) Generated on Oct 02, 2014 @ 08:28 am Name Product Identifier Manufacturer Vendor Identifier Number of Instances Service 3Dconnexion Space Pilot 3D Mouse C625 Logitech, Inc. 046D 1 Input 3Dconnexion SpacePilot PRO C629 Logitech, Inc. 046D 1 Unknown (LGPBTDD) 3Dconnexion SpacePilot Pro 3D Mouse C629 Logitech, Inc. 046D 1 Input ActiveJet K-2024 Multimedia Keyboard 0103 Elan Microelectronics Corp. 04F3 1 Input ASIX AX88772 USB2.0 to Fast Ethernet Adapter 7720 ASIX Electronics Corp. 0B95 1 Unknown (AX88772) Audio Adapter 000C C-Media Electronics, Inc. 0D8C 1 Input Bar Code Scanner 1200 Symbol Technologies 05E0 9 Input Basic Optical Mouse v2.0 00CB Microsoft Corp. 045E 1 Input Benq X120 Internet Keyboard Pro 001C Darfon Electronics Corp. 0D62 2 Input C-Media USB Headphone Set 000C C-Media Electronics, Inc. 0D8C 1 Audio Comfort Curve Keyboard 2000 V1.0 00DD Microsoft Corp. 045E 1 Input Cordless Mouse Receiver C50E Logitech, Inc. 046D 2 Input Cordless Mouse Receiver C521 Logitech, Inc. 046D 1 Input Dell N889 Optical Mouse 4D81 Primax Electronics, Ltd 0461 1 Input Intel(R) Centrino(R) Wireless Bluetooth(R) 3.0 + High Speed Adapter 0189 Intel Corp. 8086 1 Bluetooth Keyboard 2003 Dell Computer Corp. 413C 3 Input Keyboard 2010 Dell Computer Corp. 413C 1 Input Keyboard K120 for Business C31C Logitech, Inc. 046D 1 Input Laptop Integrated Webcam 63E0 Microdia 0C45 1 Unknown (OEM13VID) Logitech Unifying USB receiver C52B Logitech, Inc. 046D 1 Unknown (LEQDUSB) M-BT96a Pilot Optical Mouse C03D Logitech, Inc. 046D 1 Input Microsoft USB Wheel Mouse Optical 0040 Microsoft Corp. -
The How of Computers
THE HOW OF COMPUTERS A computer is an electronic device, operating under the control of instructions stored in its own memory, that can accept data, process the data according to specified rules, produce results, and store the results for future use. Data and Information Computers process data into information. Data is a collection of unprocessed items, which can include text, numbers, images, audio, and video. Information conveys meaning and is useful to people. Many daily activities either involve the use of or depend on information from a computer. Computers process several data items to print information in the form of a cash register receipt. A computer processes data into information. In this simplified example, the item ordered, item price, quantity ordered, and amount received all represent data. The computer processes the data to produce the cash register receipt (information). Information Processing Cycle Computers process data (input) into information (output). Computers carry out processes using instructions, which are the steps that tell the computer how to perform a particular task. A collection of related instructions organized for a common purpose is referred to as software. A computer often holds data, information, and instructions in storage for future use. Some people refer to the series of input, process, output, and storage activities as the information processing cycle. Most computers today communicate with other computers. As a result, communications also has become an essential element of the information processing cycle. The Components of a Computer A computer contains many electric, electronic, and mechanical components known as hardware. These components include input devices, output devices, a system unit, storage devices, and communications devices. -
Evaluating the Effect of Four Different Pointing Device Designs on Upper Extremity Posture and Muscle Activity During Mousing Tasks
Applied Ergonomics 47 (2015) 259e264 Contents lists available at ScienceDirect Applied Ergonomics journal homepage: www.elsevier.com/locate/apergo Evaluating the effect of four different pointing device designs on upper extremity posture and muscle activity during mousing tasks * Michael Y.C. Lin a, Justin G. Young b, Jack T. Dennerlein a, c, a Department of Environmental Health, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115, USA b Department of Industrial & Manufacturing Engineering, Kettering University, 1700 University Avenue, Flint, MI 48504, USA c Department of Physical Therapy, Movements, and Rehabilitation Sciences, Bouve College of Health Sciences, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA article info abstract Article history: The goal of this study was to evaluate the effect of different types of computer pointing devices and Received 10 January 2014 placements on posture and muscle activity of the hand and arm. A repeated measures laboratory study Accepted 3 October 2014 with 12 adults (6 females, 6 males) was conducted. Participants completed two mouse-intensive tasks Available online while using a conventional mouse, a trackball, a stand-alone touchpad, and a rollermouse. A motion analysis system and an electromyography system monitored right upper extremity postures and muscle Keywords: activity, respectively. The rollermouse condition was associated with a more neutral hand posture (lower Pointing device inter-fingertip spread and greater finger flexion) along with significantly lower forearm extensor muscle Computer tasks fi Musculoskeletal disorders activity. The touchpad and rollermouse, which were centrally located, were associated with signi cantly more neutral shoulder postures, reduced ulnar deviation, and lower forearm extensor muscle activities than other types of pointing devices. -
INFORMATION SHEET 1.1.5 Storage, Input and Output Devices LEARNING OBJECTIVES
INFORMATION SHEET 1.1.5 Storage, Input and Output Devices LEARNING OBJECTIVES: After reading this INFORMATION SHEET, STUDENT(S) MUST be able to: 1. identify the output and input device 2. explain, elaborate and classify the different computer peripherals and its components INTRODUCTION A peripheral is a piece of computer hardware that is added to a computer in order to expand its abilities. The term peripheral is used to describe those devices that are optional in nature, as opposed to hardware that is either demanded or always required in principle. There are all different kinds of peripherals you can add your computer. The main distinction among peripherals is the way they are connected to your computer. They can be connected internally or externally. A computer peripheral is any external device that provides either input or output. Peripherals typically fall into the hardware category and include optional system components. Computer peripherals are add-on hardware to the computer to expand its abilities or improve its performance. By adding memory, computers are able to perform a lot better, or by adding video cards, the computers graphics create more detail. These are just some of the peripherals, although there is a lot more you can put on your PC some of them may not be compatible. Compatibility maybe an issue to some of the peripherals and may even cause the worst outcome –the PC refuses to boot or the PC refuses to recognize the peripheral being added. The easiest way to solve that would be figuring out where it started and you can start from there. -
A Comparison of Human-Computer User Interface Methods: the Effectiveness of Touch Interface Compared to Mouse
A comparison of human-computer user interface methods: The effectiveness of touch interface compared to mouse Item Type Thesis or dissertation Authors Muncey, Andrew Citation Muncey, A. (2014). A comparison of human-computer user interface methods: The effectiveness of touch interface compared to mouse. (Master's thesis). University of Chester, United Kingdom. Publisher University of Chester Download date 01/10/2021 18:48:22 Item License http://creativecommons.org/licenses/by-nc-nd/4.0/ Link to Item http://hdl.handle.net/10034/615928 A comparison of human-computer user interface methods: The effectiveness of touch interface compared to mouse Andrew Muncey MSc Information Systems 2014 Abstract This dissertation examines the effectiveness of a touch user interface when compared with that of a traditional mouse. The effectiveness of a second hand, used to hold a touch interface is also considered. Following an investigation into existing research in the domain of touch based user interfaces, an experiment was designed to evaluate the effectiveness of selection, dragging and gesture based input tasks undertaken with both a mouse and using a touch interface. Additionally operation of the touch interface when the device was held in the hand was compared to operation when the touch interface was situated horizontally on a desk, to determine the impact of bimanual operation. The findings suggest that there is little variation in usability between a touch device held in the hand and situated on a desk, but that the touch interface provides an improved experience for an end user over that of a mouse based interface not only for selection as previous researches had indicated, but also for dragging and gesture interaction based input. -
Evans, Gareth; Blenkhorn, Paul a Head Operated Joystick
DOCUMENT RESUME ED 430 330 EC 307 177 AUTHOR Evans, Gareth; Blenkhorn, Paul TITLE A Head Operated Joystick--Experience with Use. PUB DATE 1999-03-00 NOTE 6p. PUB TYPE Reports Descriptive (141) EDRS PRICE MF01/PC01 Plus Postage. DESCRIPTORS *Accessibility (for Disabled); *Assistive Devices (for Disabled); *Input Output Devices; *Severe Disabilities; Use Studies IDENTIFIERS *Joysticks ABSTRACT This paper describes the development and evaluation of a low-cost head-operated joystick for computer users with disabilities that prevent them from using a conventional hand-operated computer mouse and/or keyboard. The paper focuses on three issues: first, the style of head movement required by the device; second, whether a head-operated device should work as an absolute positioning device or as a joystick; and, third, the accuracy required by the device. It finds that the device's "nose following" style of head movement is more accepted by users than alternatives; that users also preferred the joystick relative pointing device over absolute positioning devices; and that users did not notice inaccuracies inherent in the device's design, thus allowing production at a lower cost. (DB) ******************************************************************************** Reproductions supplied by EDRS are the best that can be made from the original document. ******************************************************************************** PERMISSION TO REPRODUCE AND DISSEMINATE THIS MATERIAL HAS ert BEEN GRANTED BY r1) el") EXPERIENCE WITHUSE ans A HEADOPERATEDJOYSTICK - TO THE EDUCATIONAL RESOURCES INFORMATION CENTER (ERIC) Gareth Evans and PaulBlenkhorn 1 Manchester, UK, [email protected] of Computation, UMIST, Technology for DisabledPeople Unit, Department Introduction computer mouse and/orkeyboard, may use a head- Computer users who cannot use aconventional hand-operated computer and, by using anon-screen keyboard, totype operated mouse or joystickin order to control their user's head movements aretranslated into mouse pointer information. -
Efficient Sound Card Based Experimention at Different Levels of Natural Science Education
MPTL16 –HSCI ‘2011 Ljubljana 15-17 September 2011 EFFICIENT SOUND CARD BASED EXPERIMENTION AT DIFFERENT LEVELS OF NATURAL SCIENCE EDUCATION Zoltan Gingl, Robert Mingesz and János Mellár, Department of Technical Informatics, University of Szeged Balazs Lupsic and Katalin Kopasz, Department of Experimental Physics, University of Szeged Abstract Sound cards, which count as standard equipment in today’s computers, can be turned into measurement tools, making experimentation very efficient and cheap. The chief difficulties to overcome are the lack of proper hardware interfacing and processing software. Sound-card experimentation becomes really viable only if we demonstrate how to connect different sensors to the sound card and provide suitable open-source software to support the experiments. In our talk, we shall present a few applications of sound cards in measurements: photogates, stopwatches and an example of temperature measurement and registration. We also provide the software for these applications. 1. Introduction Physics and other natural science education can’t be effective without properly designed, efficient, transparent and informative experiments. Using traditional instrumentation and experimental tools are important from the historical point of view, however most schools and universities run out of these, while modern measurement techniques should also play an important role and of course can be much more efficient. Today’s advanced, widely available and economic electronic solutions allow us to use sensors, digital equipments and personal computers to build wide variety of instruments and experimental setups, measure and display various physical quantities in real time, help students to understand more easily the physical phenomena and their description. There are a broad range of computer controlled experimentation tools, data acquisition devices and displaying, analysing software on the market, but they are either too expensive or not flexible and efficient enough in most cases, probably can only be used for demonstration experiments. -
Computer Input Devices
COMPUTER - INPUT DEVICES http://www.tuto rialspo int.co m/co mputer_fundamentals/co mputer_input_devices.htm Copyrig ht © tutorialspoint.com Following are few of the important input devices which are used in Computer Systems Keyboard Mouse Joy Stick Lig ht pen Track Ball Scanner Graphic Tablet Microphone Mag netic Ink Card Reader(MICR) Optical Character Reader(OCR) Bar Code Reader Optical Mark Reader Keyboard Most common and very popular input device is keyboard. The keyboard helps in inputting the data to the computer.The layout of the keyboard is like that of traditional typewriter, althoug h there are some additional keys provided for performing some additional functions. Keyboard are of two sizes 84 keys or 101/102 keys, but now 104 keys or 108 keys keyboard is also available for Windows and Internet. The keys are following Sr. Keys Description No. 1 Typing Keys These keys include the letter keys (A-Z) and dig its keys (0-9) which are g enerally g ive same layout as that of typewriters. 2 Numeric Keypad It is used to enter numeric data or cursor movement. Generally, it consists of a set of 17 keys that are laid out in the same config uration used by most adding machine and calculators. 3 Function Keys The twelve functions keys are present on the keyboard. These are arrang ed in a row along the top of the keyboard.Each function key has unique meaning and is used for some specific purpose. 4 Control keys These keys provides cursor and screen control. It includes four directional arrow key.Control keys also include Home, End,Insert, Delete, Pag e Up, Pag e Down, Control(Ctrl), Alternate(Alt), Escape(Esc). -
International Journal of Computer Sciences and Engineering Open Access Research Paper Vol.-7, Issue-4, April 2019 E-ISSN: 2347-2693
International Journal of Computer Sciences and Engineering Open Access Research Paper Vol.-7, Issue-4, April 2019 E-ISSN: 2347-2693 Green Virtual Mouse Using OpenCV Manne Vamshi Krishna1*, Gopu Abhishek Reddy2, B. Prasanthi3, M. Sreevani4 1,2,3,4Dept. of Computer Science, Mahatma Gandhi Institute of Technology, Hyderabad, India Corresponding Author: [email protected] Tel:+91 8297574773 DOI: https://doi.org/10.26438/ijcse/v7i4.575580 | Available online at: www.ijcseonline.org Accepted: 11/Apr/2019, Published: 30/Apr/2019 Abstract--- There has been a greater development of virtual technologies in the recent arena. Some of them increased the computing performances of the functioning systems. One of those highly used virtualized technology is the virtual mouse. The moments that the mouse detects are converted into the pointer movements on a display that enables the management of Graphical User Interface (GUI) on a computer platform. This paper advocates an approach for Human-Computer Interaction (HCI) where a real-time camera is used in handling the cursor movements. The Virtual mouse colour recognition program acquires real-time images continuously which will then go through a series of filtration and transformation. As the process completes the program will apply an image processing technique to capture the coordinates of the position of the targeted colours from the changed frames. Then a set of different combinations of functions are operated and then by analyzing the set of different colours thereby a program will execute the mouse function and then it is translated as an actual mouse for user’s machine. Keywords-Virtual Mouse, Graphical User Interface, Colour Recognition, Human-Computer Interaction, Calibration Phase, Recognition Phase I. -
Pointing Devices, Input-Output Mappings, CD Gain, Mid-Air Interaction, Problems of Direct Input and Solutions Input Devices Vs
Input: pointing devices, input-output mappings, CD gain, mid-air interaction, problems of direct input and solutions Input devices vs. Finger-based input Indirect vs. Direct pointing Indirect: The position of the cursor Direct: Fingers manipulate visual is controlled by the device objects directly on the screen Absolute vs. Relative pointing Absolute: 1-to-1 mapping between input and output space indirect direct Relative: Input controls the relative position of the cursor (always indirect) Hovering mode Tracking the position of the pointing device (e.g., the pen) or the finger from distance Hover widgets http://www.youtube.com/watch?v=KRXfaZ8nqZM Absolute pointing Direct input ! Hovering feedback is not indispensable as there is a clear mapping between pen/fingers and the screen ! Main drawback: occlusion problems Indirect input Wacom Cintiq ! « Hovering » is indispensable: users must know the position of the cursor before starting drawing regular graphics tablet Relative pointing Common devices: mouse and touchpad « Clutching » instead of « hovering » mode ! Lift the mouse or finger to « re-calibrate » movement ! Use of smaller input space to traverse a larger output space How would you map the input space of the tablet to the output space of the wall? Smarties: https://www.lri.fr/~chapuis/publications/CHI14-smartiestk.mp4 Buxton’s 3-state model (1990) A. Two-state model for mouse Buxton’s 3-state model (1990) B. Two-state model for a touch tablet Buxton’s 3-state model (1990) C. Three-state model for a gaphics tablet with stylus Relative pointing: Mappings Position control: maps human input to the position of the cursor (or object of interest) Examples: mouse, touchpad Rate (or velocity) control: maps human input to the velocity of the cursor (or object of interest) Examples: joystick, trackpoint Trackpoint Isotonic vs. -
A Computer Vision-Based Pointing and Gesture Input Device
FlowMouse: A Computer Vision-Based Pointing and Gesture Input Device Andrew D. Wilson and Edward Cutrell Microsoft Research One Microsoft Way, Redmond, WA [email protected], [email protected] Abstract. We introduce FlowMouse, a computer vision-based pointing device and gesture input system. FlowMouse uses optical flow techniques to model the motion of the hand and a capacitive touch sensor to enable and disable in- teraction. By using optical flow rather than a more traditional tracking based method, FlowMouse is exceptionally robust, simple in design, and offers op- portunities for fluid gesture-based interaction that go well beyond merely emu- lating pointing devices such as the mouse. We present a Fitts law study exam- ining pointing performance, and discuss applications of the optical flow field for gesture input. 1 Introduction Today’s computing environments are strongly tied to the availability of a high resolu- tion pointing device, and, more fundamentally, to the notion of a single, discrete two- dimensional cursor. Modern GUIs (graphical user interfaces) combined with devices such as mice and track pads are extremely effective at reducing the richness and vari- ety of human communication down to a single point. While the utility of such devices in today’s interfaces cannot be denied, there are opportunities to apply other kinds of sensors to enrich the user experience. For example, video cameras and computer vision techniques may be used to capture many details of human shape and movement [24]. The shape of the hand may be analyzed over time to manipulate an onscreen object in a way analogous to the hand’s manipulation of paper on a desk.