...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 most popular ports I use is the USB port. USB stands for universal serial bus. The three types of USB ports are USB 1.1, USB 2.0 and USB 3.0. Each port transfers data but at different speeds. The USB 1.1 ports has a top speed of 12 Mbps. The USB 2.0 has a top speed of 480 Mbps. The USB 3.0 has the fastest transfer speed of 4,800 Mbps. The Dell Inspiron 3542 has three USB ports. On the left side of the laptop, there is one USB 2.0 and one USB 3.0 port. The right side of the laptop has the other USB 2.0 port. Another port that is used to transfer information is the HDMI port. HDMI stands for high definition multimedia interface. The HDMI port and cord are used to transport digital video and audio from one device to another. Many smartphones, tablets, dvd and blu ray players laptops, high definition televisions, computer monitors and cameras have an HDMI port. Most of the electronic devices I mentioned usually come with one HDMI port. High Definition televisions are equipped with two or three...
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...Input and output devices Input and output devices are a vital part of each computer, whether personal or public all come equipped with these devices or ports. These parts are very important as they enable us to control the computer and information in a variety of ways. Now having a vast array of ports and devices, there are some that are used more than others. Example an input device would be the keyboard, it is used to type or tell the computer what it is we want to do. Another would be the monitor in which it displays whatever it is that we are typing or if watching a video, displaying at the time it is playing. Now an example of an output device we use daily would be speakers for listening to music already stored on the computer. An example of an I/O port that is used by everyone using a computer would be the USB port. It connects everything from printers, scanners, and flash drives, all the way to cellphones to be charged as well as connecting a laptop to a desktop to transfer information. But this is the most used port out of any on a computer. Now, there are devices that can be considered an input as well as an output device. One of these devices that is considered to be both could be a modem. The case being, that it retrieves but also sends data at the same time, thus being an input and output device simultaneously. Furthermore printers can also be considered an input device though they are mostly known for being output devices. The reason they can also be an input device...
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...Input-Output Devices in Aviation David Campbell Embry-Riddle Aeronautical University Computer input-output technology is being used increasingly more in the aviation field every day. This is especially true for communication between pilots in the air, and air traffic controllers on the ground, allowing them to communicate through text messages. Previously, the only way to communicate was by talking over the radio on VHF frequency. This technology is a great benefit to pilots and controllers reducing their work load. But some challenges lie ahead to fully integrate this system. Europe has been using this technology for a few years now while the United States is just recently out of the testing phase to implement this technology. (Eurocontrol.TV, 2010) The flight data processing system in Europe is trajectory based, and is constantly being updated throughout the flight. This gives flight controllers the most up to date information and gives them the ability to predict workloads for various control sectors. This technology allows controllers to view instrument data from the cockpit in real time. Commercial aircraft in the United States has just recently started using the global High Frequency Data Link (HFDL) network as a means to communicate with ATC. This gives controllers and pilots the ability to exchange text and data messages over a long range utilizing high-frequency radio signals. (Keller, 2012) “FANS is short for the Future Air Navigation System...
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...Most I/O devices interface to the CPU in a fashion quite similar to memory. Indeed, many devices appear to the CPU as though they were memory devices. To output data to the outside world the CPU simply stores data into a "memory" location and the data magically appears on some connectors external to the computer. Similarly, to input data from some external device, the CPU simply transfers data from a "memory" location into the CPU; this "memory" location holds the value found on the pins of some external connector. An output port is a device that looks like a memory cell to the computer but contains connections to the outside world. An I/O port typically uses a latch rather than a flip-flop to implement the memory cell. When the CPU writes to the address associated with the latch, the latch device captures the data and makes it available on a set of wires external to the CPU and memory system (see Figure 7.1). Note that output ports can be write-only, or read/write. The port in Figure 7.1, for example, is a write-only port. Since the outputs on the latch do not loop back to the CPU's data bus, the CPU cannot read the data the latch contains. Both the address decode and write control lines must be active for the latch to operate; when reading from the latch's address the decode line is active, but the write control line is not. Figure 7.1 A Typical Output Port Figure 7.2 shows how to create a read/write input/output port. The data written to the output port loops...
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...What is the meaning behind Computer Input / Output Architecture and Organization? Input is the entering of data into a computer system, whereas output is the transferring of data to an external item, such as printer. “The input /output modules are the third critical element of a computer system. The CPU and Memory are the first and second most critical elements.” (C.A.O). “The computer system’s Input /Output architecture is its interface to the outside world. This architecture is designed to provide a systematic means of controlling interaction with the outside world and to provide the operating system with the information it needs to manage I/O activity effectively.” (C.O.A.L). There are three main techniques for I/O, which are Programmed, Interrupt-Driven, and Direct Memory Access (DMA). These three techniques are essential for I/O. The Programmed I/O happens under direct and continuous control of a program requesting the operation. The Interrupt-Driven is when a program issues a command and continues to execute, until it’s interrupted by the hardware to signal the end of the operations. Finally, the DMA is when a specialized processor takes over control of an operation to move a large block of data. All three play significant roles in the architecture of the I/O in a Computer. An organization will have to have a large inventory of assets for just the basic Input Devices, Output devices, and both Input/ Output Devices related to the architecture of a company. A company...
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...NT1110 Computer Structure and Logic Short Answer 2.1 Input/Output Devices Professor Mo Suleiman October 4, 2014 In the wonderful world of computers, we need to tools to communicate with a computer. Of course, a base foundation is the Operating System. However, we do need tools that will allow end users to streamline a computer’s full potential and functionality. That is where input and output devices come into play. In computing, input and output devices refers to the way we as end users communicate with a computer. Input is defined as a way the data or information sent to a system, as in typing something on a keyboard. Outputs are the signals sent by the computer system to the outside end user. An input device is a piece of hardware that transfers information or data in the world for consumption from an end user to a computer. Critical input devices needed to communicate with a computer are a keyboard, and mouse. A keyboard is the sole way to input keys, or command instructions to a computer. Without a keyboard, a computer is useless to an end user. Another critical input device is a mouse. A mouse is a click and point device used to manipulate GUI interfaces within an operating system. A mouse is not necessary in sole computer programming, but in order to manipulate GUI based operating systems and programs, a mouse is needed to communicate to a computer. An output device is a piece of hardware a computer uses to communicate the results of data processing...
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...signals operate as follows. The traffic lights operate with the following signals R x0 G x1 G- 1x You have to design a circuit controlling all the lights. Each state should stay there for 4 clock cycles. Input Clock Pulse CP Output Light connections A0, A1, B0, B1, C0, C1, D0, D1 Project 2: Dice counter Problem A company is producing dice. To check the balancing of the dice they have made a mechanical equipment to throw the dice and read the answer. But they now need a circuit to count the actual number of times each side appeared. They already have a display and the dice counter. The LCD has 4 inputs and displays the number placed at its input. The dice counter has five outputs, four to tell which number has appeared and one to tell that a new sample is available. You have to design a circuit that gets input from the counter, counts the frequency of all the numbers and produce the output on six LCD’s i.e. you will have 24 output lines. Input Clock Pulse CP Sample Available SA Sample Data D0…D3 Output Count of 1-6 A0…A3, B0…B3, C0…C3, D0…D3, E0…E3, F0…F3 Project 3: Queue of 2-bit words Problem Implement a queue of 2 bit numbers. The capacity should be 4 words. It should have an add input with 2 inputs for actual data. A delete...
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...Abstract My understanding on IPOS (Input Output Processing Storage) A computer is an electronic device, operating under the control of instructions stored in its own memory, which can accept data (input), process the data according to specified rules (process), produce results (output), and store the results (storage) for future use. The IPOS cycle happens every time you use a computer its stands for Input, processing, output and storage. These are the steps in the IPOS cycle. First input is entered into the computer through an input device, second, the CPU (Central Processing Unit) of the computer processes the information. Third the computer can output the information as a finished product or forth it can save it in storage for a later use. Output devices are continuously changing as technology advances. The IPOS cycle is the process the computer goes through to receive input, process the data, output a display of the results and storage store the information for a later use. An input device like a keyboard enters information into the computer. An output device like a monitor displays the results or information from the computer. Storage device act like an input/output device with the additional quality of saving data to use at a later date. Input is anything we wish to embed in a system for some type of use. It is any type of data or instruction used by a computer. It is the process of sending information to the computer’s CPU (central processing unit). Different...
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... Describe the different types of input and output devices. * Input devices include, keyboards and/or mouses. Keyboards contain 101-104 keys. You have to press the correct combination of keys to input data. Mouses are used with your personal computer. It rolls on a small ball or red scanner. When you roll the mouse across a flat surface to censor the mouse to move. * Output devices include, plotters and/or speakers. Plotters is a device similar to a printer, but usually allows you to print larger images that regular printers can’t. This is commonly used by designers and research sectors. Speakers can be sold separately from computers. Some monitors may have speakers built directly into the unit. Speakers enhance the value of educational and presentation products. 2. Discuss the difference between different types of input and output devices. * Input devices are any hardware that inputs data into your computer like keyboards, or webcams. Output devices are any hardware that displays output information like printers, or speakers. 3. Discuss the factors that affect the quality of various input and output devices. * Factors that affect the quality of input devices and output devices include the speed of the device. If you put a slow device into a more faster system, it will decrease the overall system speed. Detailed Description: Keyboards I. Introduction to Keyboards * They are computer hardware input devices. * Used for controlling characters...
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...States. 2. Williams, BK, Sawyer, SC 2013, Using Information Technology,10th edn, McGraw-Hill. Chapter 1: Introduction to Computers Objectives Overview: * Define the term, computer, and describe the relationship between data and information * Describe the five components of a computer * Discuss the advantages and disadvantages that users experience when working with computers * Distinguish between system software and application software * Differentiate among types, sizes, and functions of computers in each category * Discuss how society uses computers in education, finance, government, health care, science, publishing, travel, and manufacturing 1.1 What Is a Computer? * A computer is an electronic device, operating under the control of instructions stored in its own memory. 1.2 What Is Data and Information? * Computer process data into information. * Data is a collection of unprocessed...
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...able to: 1. Define output device. 2. Enumerate different output devices and its functions. II. Subject Matter A. Topic : Output Devices B. Reference: Introduction to Information Technology By: Albano, Atole & Ariola C. Materials: Personal Computer III. Learning Tasks A. Daily Routine Activity 1. Greeting 2. Classroom Management 3. Prayer 4. Checking of Attendance 5. Checking of Assignment B. Review 1. What is input device? 2. Give examples of input device. C. Motivation D O M T Y F E R P S S M O N I T O R X M A M E R Q R I S P W I N H B I V G P L F R E M N E S O E E J T S o G I D H A O S H E T Y K R A K P A R F E W D Y O E R N Q T G Q S T U R E S D G S R E H E I K F J P R I N T E R O E E M O I M V U P I L Instruction: Encircle/oblong the words that correspond to the different examples of output devices based on the definition given on the left side of the box. 1. An output device used to produce high quality drawings. 2. Displays images on the screen using grids of dots called pixels. 3. Produces sound output from the computer. D. Lesson Proper Objective Content Procedure 1. Define output device 2. Enumerate different output devices and its functions. An output device is any piece of computer...
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...Structure and Logic June 29, 2015 Module 2 Short Answer I/O devices are a vital part of any computer system. These devices enable the user to put data into the system (input) and receive a visual representation of what they put in (output). Some of the most vital I/O devices to make a system operable are the most common seen. One such device being the monitor. The monitor is the single most important output device to have on a system. The monitor allows for a visual display of all inputted data on the computer. Paired with the monitor, the keyboard and mouse are 2 input devices which allow the user to directly input data and various other information into the system. However, there are some input devices which are not necessary for normal use of the system. One such example being a webcam. Webcams allow for visual input into the system but is not vital for system functionality or performance. Due to the fact that a visual input device is not a normal form of input for a system. A modem is considered an I/O device for a variety of reasons. A modem allows for data input to the system directly from the internet and other systems, as well as allowing the system to output data to other systems. Another device that follows the dual functionality aspect is a printer. The printer is viewed mainly as an output device, allowing for data to be visually outputted to paper. The printer can also be considered an input device, depending on what type of printer you have. Currently printers...
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...NT1110: LATEST TRENDS ON INPUT/OUTPUT DEVICE MODULE 2 Input/output is generally known as I/O in the IT field. Input/output device is the communication between an information system and another. Input serves as sending data into the computer’s CPU, while output devices send data outwards to the users. It provides man to machine communication. Some input devices could be highlighted as follows: * Keyboard: Originated from typewriter. Keyboard is the most common and very popular input device which helps in inputting data to the computer. It serves as the gateway of control for the computer and also allow the user to manipulate and dictate tasks---ranging from surfing the Internet to writing documents. Keyboard also allows to input letters, numbers, and other symbols into a computer that often function as commands. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions. There are two types of keyboard, which are the QWERTY and Dvora layouts. Keyboards are also of two sizes 84 keys or 101/102 keys, but now keyboards with 104 keys or 108 keys are also available for Windows and Internet. Keyboard is used in the input phase of a computer-based information system. * Mouse: Mouse is most popular pointing device. It is a very famous cursor-control device having a small palm size box with...
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...Discovering Computers Technology in a World of Computers, Mobile Devices, and the Internet Chapter 7 Input and Output Objectives Overview Differentiate among various types of keyboards: standard, compact, on‐ screen, virtual, ergonomic, gaming, and wireless Describe characteristics of various pointing devices: mouse, touchpad, pointing stick, and trackball Describe various types of pen input: stylus, digital pen, and graphics tablet See Page 288 for Detailed Objectives Describe various uses of touch screens Describe various uses of motion input, voice input, and video input Discovering Computers 2014: Chapter 7 2 Objectives Overview Differentiate among various scanners and reading devices Explain the characteristics of various displays Identify the purpose and features of speakers, headphones and earbuds, data projectors, interactive whiteboards, and force‐feedback game controllers and tactile output See Page 288 for Detailed Objectives Summarize the various types of printers Identify various assistive technology input and output methods Discovering Computers 2014: Chapter 7 3 What Is Input? • Input is any data and instructions entered into the memory of a computer • • • Instructions can be in the form of software (programs and apps), commands, and user response Command is an instruction that causes a program or app to perform a specific action...
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...LOGIC GATES In electronics, a logic gate is an idealized or physical device implementing a Boolean function; that is, it performs a logical operation on one or more logical inputs, and produces a single logical output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device[1] (see Ideal and real op-amps for comparison). Logic gates are primarily implemented using diodes or transistors acting as electronic switches, but can also be constructed using electromagnetic relays (relay logic), fluidic logic, pneumatic logic, optics, molecules, or even mechanical elements. With amplification, logic gates can be cascaded in the same way that Boolean functions can be composed, allowing the construction of a physical model of all of Boolean logic, and therefore, all of the algorithms and mathematics that can be described with Boolean logic. Logic circuits include such devices as multiplexers, registers, arithmetic logic units (ALUs), and computer memory, all the way up through complete microprocessors, which may contain more than 100 million gates. In practice, the gates are made from field-effect transistors (FETs), particularly MOSFETs (metal–oxide–semiconductor field-effect transistors). Compound logic gates AND-OR-Invert (AOI) and OR-AND-Invert (OAI) are often employed in circuit design because their construction using MOSFETs is simpler and more efficient than...
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