"Functions Of Input Output Devices" Essays and Research Papers

  • Functions Of Input Output Devices

    Chapter 9 Input/Output Devices Contents: I. Introduction II. Input Devices a. Keyboard,mouse,joystick,scanners,digital camera, bar code reader, touch Sreeen,Speech input device (microphone) III. Output Devices a. Monitor , Speaker, Printers ( different types) ----------------------------------------------------------------------------------------I. Introduction The computer will be of no use unless it is able to communicate with the outside world. Input/Output devices are required for users to...

    Arrow keys, Computer, Computer keys 1556  Words | 6  Pages

  • Input and Output Devices

    An input device is a hardware used to send data to a computer . input device allows users to communicate for processing , display , storage and transmission SEVEN COMPUTER INPUT DEVICES THAT WE HAVE ARE AS FOLLOWS: KEYBOARD A computer keyboard is an input device used to enter characters and functions into the computer system by pressing buttons or keys.it is the primary device used to enter text. A keyboard is used to enter text . a keyboard...

    Computer, Computing input devices, Floppy disk 1045  Words | 7  Pages

  • input output devices

    Input devices There are many input formats which enable us to gather up and collect information, and enter data and instructions into the computer. Input devices can be manual or automatic. Manual input devices include: Keyboard - including concept keyboard. This is a flat board that contains a grid of buttons. Each button can be programmed to follow instructions. An overlay sheet is placed on the grid with an explanation for each button. They are used in primary schools with young children...

    American inventions, Automatic identification and data capture, Banking technology 930  Words | 4  Pages

  • Input, Output, Storage Devices, Speed

    Input Data is factual information and it needs to be accurately captured in order to be processed. There are many methods to input data and each situation warrants a different method. There can be several different ways to input the information and it can be done in an automatic fashion, as with a computer, or it can be done manually, as with a human writing the information down. For instance, printed questionnaires would best use a special scanning device called an optical data reader that uses...

    Computer, Computer data storage, Hard disk drive 1187  Words | 4  Pages

  • Output Devices

    (CPU) of a computer system. A central processing unit (CPU), also referred to as a central processor unit, is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system. In the computer industry, the terms computer and CPU are often used interchangeably. Computing power starts with the most limited microcomputers which are laptop computers, netbook computers, PDAs and cell phones and...

    Central processing unit, Computer, Computer program 1035  Words | 4  Pages

  • Applications of Input, Storage and Output Devices.

    Input Devices Light sensor: Gesture detection – the detection of human movements – may be used to enable advanced, differentiated smart features in portable electronics such as smart phones. Many of these features save energy by enabling electronics to expend the minimum amount of energy necessary to provide appropriate screen illumination levels. For example, when a phone is held to a user’s ear during normal conversation, the user can not see the screen, and therefore it may be turned off. This...

    Blu-ray Disc, IPhone, IPod Touch 872  Words | 4  Pages

  • Input Devices and Their Uses

    INPUT DEVICES An input device is any hardware component that allows you to enter data, programs, commands, and user responses into a computer. Input devices include the keyboard, pointing devices, scanners and reading devices, digital cameras, audio and video input devices for physically challenged use MOUSE The mouse is an input device that is used to control the movement of the pointer on the screen and to make selections from the screen. She top of the mouse has one to four buttons. Some...

    Camera, Control key, Digital cameras 454  Words | 3  Pages

  • Kinds of Input Devices

    Different Kinds of Input Devices Computers support various input and output devices to maximize functionality. An input device is any piece of hardware that provides data and controls various signals as they process through the computer. If a computer did not use any input devices, users would watch the activity, as opposed to interacting with it. Each type of input device serves its own purpose, ranging from a simple pointing device to a webcam. Have a question? Get an answer from Online Tech...

    Computer, Computer data storage, Data storage device 596  Words | 3  Pages

  • Sources of Data Input and Output

    Accuracy of data input is important. What method of data input would be best for each of the following situations and why: * Printed Questionnaires: * Keyboard and mouse * User can type data using the keyboard and use the mouse to click/select pieces of data * Telephone Survey: * Voice input device * Surveys may be set up to function using voice recognition for users responding...

    Computer data storage, Floppy disk, USB flash drive 629  Words | 3  Pages

  • Essay about input and output devices and computer components

    The purpose of this paper is to answer questions about various data input and output methods, various storage types and devices, and the speed of a computer. Each of the four questions is divided into a corresponding section below. In the input device section, this paper focuses primarily on user input, rather than the input devices used to extract information entered by a user. In all of the presented cases, electronic scanning methods are the best method, and the method routinely used, to extract...

    Computer, Computer data storage, Computer storage 2080  Words | 7  Pages

  • Input Devices

    Input Devices QWERTY Keyboard The keyboard is the most common type of input device. In other countries, the keyboard layout is different due to their different language and characters. There are some variations of keyboards to the normal keyboard. Some are wireless which means that no wire is required to connect it to the PC; and some have ergonomic design, which have a special design in order to reduce muscular stress on the user. Mouse The mouse is a pointing device which is used to move...

    Graphics tablet, Image scanner, Input device 1371  Words | 4  Pages

  • 8 Input Devices for Computers

    Input devices 1.Keyboard In computing, a keyboard is an input device, partially modeled after the typewriter keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. A keyboard typically has characters engraved or printed on the keys and each press of a key typically corresponds to a single written symbol. However, to produce some symbols requires pressing and holding several keys simultaneously or in sequence. 2. Mouse In computing, a mouse...

    Computing input devices, Graphics tablet, Input device 731  Words | 3  Pages

  • Output Devices

     Theory Notes Task: Output Devices Make sure that you are familiar with all of the information detailed in this booklet. There are a number of tasks for you to carry out, be sure to read the information fully whilst completing the tasks. You could be asked about any of this in the test! Use the theory notes in from the teach-ict.com site to help you complete this booklet. TASK 1: OUTPUT DEVICES Output devices let you see data that has been processed or is stored on the hard...

    Hewlett-Packard, Inkjet printer, Laser printer 666  Words | 4  Pages

  • Input Devices

    INPUT DEVICES 1. Where does the name QWERTY keyboard come from ? The name QWERTY comes from the first six letters on the top row of the alphabet keys. 2. Why do think the QWERTY keyboard is the most popular method of data entry? The QWERTY keyboard is the most popular method of entering data because an easy way of usage and when you get used to it you start typing faster 3. Who might make use of a concept keyboard? A concept keyboard might be used by a fast food restaurant...

    American inventions, Credit card, Graphics tablet 666  Words | 3  Pages

  • Input And Output Devices

     Norah Stanley NT 1110 July 12, 2014 INPUT AND OUTPUT DEVICES Chapter three of the textbook Computer Structure and Design is all about the different types of input and output devices that are found on many laptops and desktops. Input and output devices are ports that transfer information. Some examples of input and output ports are USB, HDMI and Network ports. I will discuss their functions and where they are located on the Dell Inspiron 3542 laptop. One of the...

    Computer, Cyclic redundancy check, Serial port 428  Words | 3  Pages

  • Input And Output Devices Of A Computer

    Input and Output Devices The terms “input” and “output” are used both as: verbs to describe the process of entering /displaying the data. nouns referring to the data itself entered into /displayed by the computer. Input Devices Input devices are necessary to convert information or data in to a form which can be understood by the computer. A good input device should provide timely, accurate and useful data to the main memory of the computer for processing. Keyboard Keyboard is the standard...

    Cathode ray tube, Dot matrix printer, Inkjet printer 2240  Words | 7  Pages

  • Input and Output Devices

    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...

    Computer, Computing input devices, Graphics tablet 2370  Words | 8  Pages

  • Input Output Importance.Doc

    Importance of Input/Output However, music stored on a CD is read sequentially, so rotation speed is not an issue. Data on floppy disk – Refers to the 3½", 5¼" and 8" floppy disks, because when waved around they are floppy (at least the 5¼" discs were very flexible). Floppy discs are Computers are an important part of business these days, and businesses generally have multiple computers supplying each office employee with a complete personal computer system. Then the personal computers are linked...

    Backup, Computer, Computer data storage 1353  Words | 4  Pages

  • Input and Output Devices

    A THOROUGH OVERVIEW OF INPUT AND OUTPUT DEVICES PRESENTED BY THE MEMBERS OF GROUP B COMPUTER SCIENCE DPT. INTRODUCTION • The I/O devices as parts of the components of an information processing system or a computer system are those devices which enables the computer system to communicate with the outside world. As we all know from the concept of communications in English language that communication is said to have being completed only when the encoder (sender) must have received a feedback from...

    Graphics tablet, Input device, Mouse 4036  Words | 24  Pages

  • Input/Output Devices

    INPUT DEVICES: 1. Keyboard - The keyboard is a way to input letters or numbers into different applications or programs. A keyboard also has special keys that help operate the computer. 2. Mouse - The mouse is used to open and close files, navigate web sites, and click on a lot of commands (to tell the computer what to do) when using different applications. 3. Touch Screen - A touch screen is a computer screen or other screen that you can touch with your finger to enter information. Examples...

    Expansion card, Graphics tablet, Input device 802  Words | 2  Pages

  • Input Device and Thesis Adviser

    Hardware In hardware, it allows input and output device that can help to the proponents to create a documents, copying some important information’s like a business permit, receipts, and etc. A. Input Devices • Mouse – we use this device to click open and close file, drag and drop. • Keyboard - we use this device to type letters, number and etc. it also has a special keys that helps to operate the computer. • Scanner – we use this device to copy some important files...

    Input, Input device, Input/output 764  Words | 3  Pages

  • Input Output of Business Model

    provide related services. * A process has a definite starting point-the time, place, and point of input. * The input is transformed into output via a set of interdependent activities. These activities follow a logical flow; however, they may not add equal value to the process. * The process ends with a defined output that is the resulting sum of all the activities performed on the input. Business processes are valuable organizational assets. They enable the creation and delivery of...

    Business process, Business process modeling, Business process reengineering 850  Words | 4  Pages

  • Encoder and Input Lines

    Decoders The basic function of a decoder is to detect the presence of a particular combination of bits at the inputs and indicate the presence of that particular set of bits by outputting a specified output level. Typically a decoder with n input lines require 2n output lines to decode every possible combination of bits. BCD to decimal conversion, looked at in part 3 of this lab, is accomplished using a decoder which has 4 input lines and 10 output lines (the 10 output lines correspond to the...

    Binary-coded decimal, Decimal, Decoder 340  Words | 3  Pages

  • Class IX Input Function in Python

    Notes/Python/input() function/X/YK input() function Programs are written for data processing. In general, the data is input from the user. For example, when you buy some items from a shop, the person at the bill counter enters the data (item code and quantity) of each item using keyboard or bar code reader into the computer. The bill is generated based on this data and the data (Rate, Item name etc) which is already fed into the computer. As another example, we can take report card printing system...

    Arithmetic, C, Data 1147  Words | 3  Pages

  • Input and Output Devices

    1. Five factors you should consider when assessing the suitability of hardware device for connecting to a computer is; • Speed, • Cost, • Security, • Capacity, • Reliability. 2. When installing a new component into a computer system the tasks involved are; • Add the component to the computer, either connecting in through an existing port or plugging it into an expansion slot in the motherboard. • The available ports on most computers include serial, parallel and universal serial...

    Computer, Computer monitor, Graphical user interface 540  Words | 2  Pages

  • Input and output devices

    Input Output Devices in Aviation Charles Mack Embry-Riddle Aeronautical University Abstract Computer technologies recognized in the video presented were as follows. LCD screens for flights, operations program used for air traffic controllers, in flight routing and revision of flight plans thru the restructure of airspaces in European airports. By using these technologies, the benefits derived from these programs are, smoother flight plans, safer takeoffs and landings, less runway collisions...

    Air traffic control, Aviation, Aviator 563  Words | 2  Pages

  • Input and Multiplexers

    Multiplexers can implement arbitrary functions. –  We will actually put these circuits to good use in later weeks, as building blocks for more complex designs. Multiplexers 1 Multiplexers •  A 2n-to-1 multiplexer sends one of 2n input lines to a single output line. –  A multiplexer has two sets of inputs: •  2n data input lines •  n select lines, to pick one of the 2n data inputs –  The mux output is a single bit, which is one of the 2n data inputs. •  The simplest example is a 2-to-1...

    Bit, Boolean algebra, Input 1121  Words | 6  Pages

  • peripheral devices

    PERIPHERAL DEVICES Peripheral devices can be attached by cable or wireless technology to the computer to perform specific functions. Peripherals are plugged into special sockets (ports) using cables. INPUT 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...

    Computer, Digital, Input device 373  Words | 3  Pages

  • Multiple Input, Multiple Output (Mimo)

    Communications MIMO Multiple Input, Multiple Output (MIMO) technology is a wireless technology that uses multiple transmitters and receivers to transfer more data at the same time. MIMO technology takes advantage of a radio-wave phenomenon called multipath where transmitted information bounces off walls, ceilings, and other objects, reaching the receiving antenna multiple times via different angles and at slightly different times. In radio, multiple-input and multiple-output, or MIMO (commonly pronounced...

    Antenna, Antenna diversity, Information theory 1108  Words | 4  Pages

  • Methods of Data Input, Output, Storage and Speed

    Running Head: Data Input, Output, Storage and Speed Methods of Data Input, Output, Storage and Speed Kenneth Sparks University of Phoenix Methods of Data Input, Output, Storage and Speed We all should know and understand that accuracy of data input is important. In today’s society we rely on data input by others in almost everything we do. Knowing how the most efficient way of inputting data can aid in daily functioning. You can be prepared for what a support person may ask...

    Computer data storage, Data storage device, Hard disk drive 1643  Words | 5  Pages

  • Information Technology-Input and Output Devices

    1. Scanning devices 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 ...

    Cathode ray tube, Computer, Computer monitor 2633  Words | 10  Pages

  • Input and Output Devices in Aviation

     Embry-Riddle Aeronautical University Input and Output Devices in Aviation Technology is an ever evolving, ever changing beast that impacts the lives of every living being. As the technology evolves, so does society's imagination and humankind's will to test all perceived barriers. Such technological advances have allowed mankind to make metal tubes with wings that soar through the sky at speeds greater than the sound barrier. The same technological advances have allowed humans to instantly...

    Air traffic control, Amateur radio, Communication 620  Words | 2  Pages

  • Ups System- Inputs Processing and Outputs

    INPUTS The main input of the UPS’s package tracking system is the scannable-bar coded label which is attached to a package. Customers can download and print their own labels using special software provided by UPS or by accessing the UPS website. This scannable label contains detailed information about the sender, the destination of the package, the recipient, and when the package should arrive. PROCESSING Before the package is even picked up, the data from the scannable bar coded label is...

    Computer, Customer, Customer service 612  Words | 3  Pages

  • Microcontroller: Output and Pin

    Microcontroller A microcontroller (mcu or µc) is a small computer on a single integrated circuit consisting of a relatively simple CPU combined with support functions such as a crystal oscillator, timer, watchdog, I\O etc. Microcontrollers are designated for small applications. Thus, in contrast to the microprocessors used in personal computers and other high performance applications, simplicity is emphasized. Microcontrollers operate at frequency as low as 12 MHz, as this is adequate for many...

    Central processing unit, Computer, Input 567  Words | 3  Pages

  • The Four Major Functions of an Operating System

    1.The four major functions of an operating system are: Managing programs Managing Memory Handling input and output User Interface Managing programs Managing programs is one of the functions that are most dramatic effect to the operating systems overall quality. There are many different systems that are used for managing programs. You have single tasking, in which you can run only one program application at a time. Multi-tasking in which in the normal operating system allows a single user to...

    Computer, Device driver, Graphical user interface 440  Words | 3  Pages

  • Data Input, Output, Storage and Access Methods

    Data Input, Output, Storage and Access Methods The purpose of this paper is to highlight some best practices for data input and output. In addition, this paper will highlight appropriate uses of various storage means. Lastly, it will address the effect certain components of a computer have on its overall speed. Accuracy of Data Input There are various methods for entering data into a computer system. Depending on the medium in which the original data is contained, and how it is to be stored...

    Computer, Computer data storage, Data storage device 1256  Words | 4  Pages

  • Input and Output Devices

    of a new printer, is to use the “add a printer” control panel option. One of the ways you can find out in windows what printer is installed on the computer is in “devices and printer”. You can access this by going to start, click on the control panel, from there a window will pop up, click on hardware and sound, double click on devices and printers. You can add a printer in the add a printer tab. Once you hit the tab, the computer will ask you how printer is connected to the computer for example:...

    Graphical user interface, Mac OS, Macintosh 547  Words | 2  Pages

  • Pc Sound Card as a Function Generator and Oscilloscope

    Use of Sound Card as an Oscilloscope and Function Generator Saad Pervaiz LUMS School of Science and Engineering Winter 2010 Keywords MATLAB. DAQ . Sound card. Oscilloscope . Signal Generator . Sound Card Sound card present in personal computers facilitates the input and output of audio signals, under the control of a driving software e.g. in multimedia. This device can be used as an oscilloscope for signals up to a frequency of 20 kHz. The following text shows how sound card can...

    Alternating current, Oscilloscope, Phase 865  Words | 5  Pages

  • p2- function of hardware components

    Function of Computer Hardware Components Main Internal Components Processors: Shorter name for the CPU which stands for Central Processing Unit. The processor is a part of the Computer that will follow information that has been given in order to set up a program. Motherboard: A major piece of hardware and holds important components together such as the CPU and memory. BIOS: Basic input/output system has certain instructions in which this will help to start up a pc. Whenever you...

    BIOS, Computer, Memory card 829  Words | 3  Pages

  • Production Function

    Production Function? Definition and Explanation: , Production of goods requires resources or inputs. These inputs are called factors of production named as land,  labor, capital and organization. A rational producer is always interested that he should get the maximum output from the set of resources or inputs available to him. He would like to combine these inputs in a technical efficient manner so that he obtains maximum desired output of goods. The relationship between the inputs and the resulting...

    Capital, Economics, Economics of production 907  Words | 4  Pages

  • Data Entry, Output, Storage and Memory

    Data entry Data entry or input is the process by which raw data is captured and recorded. Input can be an automated or manual process. Regardless of what type of input is selected, accuracy is critical to the desired output. (Stair & Reynolds, 2006). The type of data to be entered determines the data input method. For example, printed questionnaires are best suited for manual data entry. Questionnaires tend to be unstructured and may require interpretation by the survey issuer. An example of data...

    Computer, Computer data storage, Computer memory 897  Words | 3  Pages

  • Input Devices Used with a Computer

    * Input is all information put into a computer. Input can be supplied from a variety of sources: * A person * A storage device on computer * Another computer * A peripheral device * Another piece of equipment, such as a musical instrument or thermometer One of the primary input devices used with a computer, the keyboard looks very similar to the keyboards of electric typewriters, with some additional keys. Keyboards allow a computer user to input letters, numbers...

    Computer, Graphical user interface, Input device 415  Words | 2  Pages

  • Data Input Methods

    Data Input Methods Optical data readers The best data input method for printed questionnaires would be Optical Data Readers. Optical Data Readers are a special type of scanning device to be used on documents. Optical Data Readers fall under two categories, optical mark recognition (OMR) and optical character recognition (OCR) (Stair, R., Reynolds, G., 2004). Printed questionnaires which, for instance, can be used for surveying groups of people regarding a particular subject can utilize OMR through...

    CD-ROM, Computer, Computer data storage 1746  Words | 6  Pages

  • production function

    beaviour of output as inputs increase? (h) How does technology help in reducing production costs? (i) How can the least-cost combination of inputs be achieved? (j) Given the technology, what happens to the rate of return when more plants are added to the firm? The Theory of Production Production theory generally deals with quantitative relationships, that is, technical and technological relationships between inputs, especially labour and capital, and between inputs and outputs. An input is a good...

    Economics, Economics of production, Input 736  Words | 3  Pages

  • output devices

    OUTPUT DEVICES Output devices are things we use to get information OUT of a computer. Here are some examples of output devices:- Monitor George Doyle/Stockbyte/Getty Images The most common computer output device is the monitor or computer screen. Monitors create a visual display from processed data that users can view. They come in a variety of screen sizes and visual resolutions. There are two types of computer monitors, CRT and flat panel. CRT monitors use phosphorescent dots to create...

    Cathode ray tube, Computer, Computer printers 574  Words | 2  Pages

  • Functions And Graphing Functions

    Functions and graphing functions Basics: A function is a rule that changes input into output A relation is any set of ordered pairs A function is defined as a set of ordered pairs in which no two ordered pairs have the same element A function must give exactly one unique output for each input Also called a mapping or simply a map The set of input numbers is called the domain The set of output numbers is called the range The set of all possible outputs is called the co-domain The range is generally...

    Codomain, Derivative, Exponentiation 651  Words | 5  Pages

  • Ultrasonic Devices

    PROJECT SYNOPSIS ON MICROCONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT ABSTRACT: The microcontroller based ultrasonic distance measuring device is a device used to calculate the distance between the ultrasonic transmitter/receiver and the object whose distance is to be measured. A microcontroller is used to calculate the delay time between the transmitted signal and the received signal. ULTRASONIC WAVES: Ultra means “beyond” and sonic means “sound”. Ultrasonic...

    Acoustics, Amplifier, Frequency 675  Words | 3  Pages

  • Mobile Device

    Input-Process-Output-Storage (IPO S) A mobile device is a small and handy computing device. Mobile device usually come with a touch or non- touch display with a mini keyboard. Today, mobile devices have become popular to everybody since they are convenient. As on the year 2012, reports had claimed that more 75% of the world population owns a mobile device. Mobile device are also considered as a computer systems because it uses the Input-Process-Output-Storage (IPOS) model. One of the examples...

    Audio Video Interleave, Comparison of container formats, Computer 799  Words | 3  Pages

  • Organizational Level Outputs

    Organizational Level Outputs Outputs Diagnosis Executive Summary The Purpose for this summary is to provide you with the findings of my analysis on Skype’s organizational outputs covering the Organizational, Group and the Individual level. Skype is a new Microsoft Division, which provides low cost fee calls to landlines and mobile phone not registered within Skype, using the Peer to Peer technology and its latest version (5.10.0.115) which has the capability to support nearly any computer operating...

    Comparison of instant messaging clients, Customer, Customer service 1383  Words | 4  Pages

  • Output and Decoder

    Decoder and MUX instructions: http://www.cse.sc.edu/~huangct/CSCE211F13/Function-MUX-Decoder.htm Follow this link to find 3-to-8 Decoder, 74LS138: http://www.cse.sc.edu/~huangct/CSCE211F13/74x138.pdf Follow this link to find 8-to-1 MUX, 74LS151: http://www.cse.sc.edu/~huangct/CSCE211F13/74x151.pdf 1. (0.2 points) Problem 1.a.i and 1.b from Section 5.10. Assume that there is a small delay ∆ at each gate (from the input to the output). 2. (0.3 points) Problem 7 from Section 5.10. Simply find the minterm...

    Decoder, Input, Input/output 808  Words | 2  Pages

  • Input and Interaction

    INPUT AND INTERACTION For this purpose we will borrow Ellis' definition of input as "target language samples to which the learner is exposed. It contains the raw data which the learner has to work on in the process of interlanguage construction. We will understand interaction as "the process of interpersonal communication” 2. Input and learning The role of input comprehension has been of prime importance in second language acquisition (SLA) research and theory, especially during the past two...

    Communication, Language acquisition, Language development 1909  Words | 6  Pages

  • Output and Average Age

    and document a simple program that utilizes a good design process and incorporates sequential, selection and repetitive programming statements as well as at least one function call and the use of at least one array.  The specific problem you need to solve for the final project is:  Design a program that will allow a user to Input a list of your family members along with their age and state where they reside. Determine and print the average age of your family and print the names of anyone who live...

    Array data type, C, Data type 1584  Words | 5  Pages

  • Cost Function in Railways

    Introduction This assignment focuses on the cost functions of the Dutch Railways. In this tutorial will be an estimated cost function developed for the Nederlandse Spoorwegen (NS). This cost function (expressed in Dutch Guilders) is based on the period of Year 1951 till Year 1993. This due to certain developments that made it more difficult to come to a good approach of a cost function. Based on the cost function, developed in this tutorial, there will be an answer provided on the question whether...

    Cost, Costs, Input 1627  Words | 4  Pages

  • Input, Processing and Output

    Input Device is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance. A keyboard is the most common input device. Using a keyboard, the user can type the text and execute commands. Keyboard is designed to resemble a regular typewriter with a few additional keys. Data is entered into the computer by simply pressing various keys. The layout of a keyboard comes in various...

    Computer, Graphical user interface, Input device 2391  Words | 8  Pages

  • Output Device

    OUTPUT DEVICE What are OUTPUT DEVICES? Output devices are hardware devices that display or present information to the user or other people. The monitor, printer and the speaker are one of the examples. PRINTER It is a computer device that produces a permanent copy on paper of information from the computer. There are several kinds of printers: ink jet, dot-matrix and laser jet printers. DOT MATRIX PRINTER Prints by hammering or striking an ink-soaked cloth ribbon against a paper. The advantage...

    Computer printers, Dot matrix, Dot matrix printer 321  Words | 3  Pages

  • Function Point

    Function Point Estimation Function Point Estimation 1. What is Estimation? Estimation is the prediction of the future outcome based on some calculation and past experience. 2. Why do we do estimation? We do estimation for planning, tracking and schedule. A vehicle to estimate cost and resources required for software development and maintenance OR Following are the uses/benefits of FP Estimation:  Size  Productivity  Predicting Efforts  Resources  Understanding Unit Cost  Duration  Schedule...

    Computer program, Computer science, Data 1353  Words | 6  Pages

  • Basic Functions of Os

    Thus the basic functions of an OS are – 1. Process Management – Managing the programs that are running. 2. Memory Management – Managing and rationing the memory between processes and data. 3. Storage Management – Managing the permanent Storage of data on disks or other media 4. I/O Management – Managing the input and output 5. Device / Resource Management – Managing devices and resources and allowing the users to share the resources 6. Security and Protection – Securing the...

    Computer file systems, File system, Filesystem Hierarchy Standard 1245  Words | 4  Pages

  • Output Devices

    INFORMATION TECHNOLOGY OUTPUT DEVICES INTRODUCTION  Any peripheral that receives data from a computer.  Translates information processed by the computer into a form that humans can understand.  Examples : Printer, Monitor, Speaker , Projector, etc. TYPES OF OUTPUT DEVICES 1) PRINTER a) Dot-Matrix Printer - (Source : http:// en.wikipedia.org/wiki/Dot_matrix_ printing ) Inexpensive and can make multiple copies with multipart paper. Noisy and low quality. Produces printed images when...

    3D printing, Cathode ray tube, Computer 1236  Words | 23  Pages

  • pointing devices

    Pointing Devices are direct entry input devices. They allow users to control the pointer and the insertion point on the screen. Examples of pointing devices are mouse, trackball, touch pad, pointing stick, joystick, touch screen, light pen and graphics tablets. A mouse is a computer device, which has a ball sealed at the bottom. It is attached with a cable to the system unit. When rolled on the flat surface, the movement of the ball will generate electrical circuits, which are then sent to the...

    Graphics tablet, Mouse, Personal computer 1004  Words | 3  Pages

  • Data Input And Output Essay

     Data Input and Output Essay The methods of input of data may vary consistently. For instance, for printed questionnaires, the traditional method of input implies the use of computers’ keyboard by means of which the information that is supposed to be printed in a questionnaire is input. The same method may be used for long documents, though this may imply the use of different software applications. For instance, for printed questionnaires the simplest word processors may be used, while long documents...

    Computer, Computer data storage, Data 624  Words | 2  Pages

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