Computer Peripherals 1. Input Devices Input devices are used to capture the data and transmit it to the computer system for further processing and in computer readable form. Some of the input devices are as under: a) Keyboard Devices: keyboard devices are the most commonly used devices today. They allow data entry into a computer system by pressing a set of keys, which is connected to a computer system. Programs and data are entered into a computer through a keyboard. A keyboard
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connects multiple input lines to a single output, allowing only a single selected input signal to be passed to the output line at a time. * An Input signal is selected to be passed to output based on selection code which is implemented as two select lines. Typical Inputs and Outputs: * Consider a 4 -to -1 Multiplexer, typical inputs include four input lines labelled C0, C1, C2 and C3, along with two select lines labelled S0 and S1. * Output include single output line labelled F.
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Region d vO = −1 dv I vO = f (vI ) I III II V+ vI Note that there are essentially three regions to this curve: I. The region where vI is relatively low, so that the output voltage vO is high. II. The region where vI is relatively high, so that the output voltage vO is low. III. The transition region, where the input/output voltage is in an indeterminate state (i.e, an ambiguous region between high and low. Jim Stiles The Univ. of Kansas Dept. of EECS 11/5/2004 Noise Margins
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Design .....................................................................................................8 4.1 4.2 Power Calculation ...........................................................................................8 Parts of the Jammer Device ..............................................................................8 4.2.1 The Power supply ……………………………….…………………………..………9 4.2.2 The IF-section ……………….………………………….…………………..………10 4.2.3 The RF-section 5. Results Conclusions …………………………..………
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stored in the same memory module and the contents of this memory are addressed by location only. This all takes place in a sequential order. The Von Neumann machine had five basic parts comprised of memory, ALU, the program control unit, input equipment & output equipment. The programs uses a language that to the naked eye can in most cases resemble spoken language. Upper-level languages such as C and Java are designed with this in mind. However, computers understand natural language without significant
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ability to work with the von Neumann model of a computer. To demonstrate this ability, the student will: 1. Draw a diagram of a computer from the von Neumann perspective, including definitions of all parts of the model. 2. Provide examples of the Input, Output, and Memory sections of the model. 3. Provide a comparison table showing the similarities and differences between desktop and notebook computers. Required Setup and Tools In this laboratory, students will need only paper and pencil to do the
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Christopher Wilburn Sr. ET2750 Unit 1 Assignment 1 Chapter 1 pp.551-552 1. Programmable logic controller is defined as specialized electronic devices designed for use in the control of a wide variety of manufacturing machines and systems. 3. The PLC business is a 6.5 billion dollar industry that is growing at 20% per year. There are about 110 programmable controller venders, over 1000 vendors offering PLC add-in boards and other peripherals, and over 2000 companies developing PLC solutions. 4. Some
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Logic Diagrams Technical Terms combinational logic gates sequential logic devices Boolean expression Boolean algebra true state logic high false state logic low truth table gate symbols NOT gate AND gate OR gate NAND gate NOR gate XOR gate XNOR gate Karnaugh map Quine-McCluskey routine Combinational logic gates: Logic devices in which the output of the device is dependent only on the present inputs to the device. There is no
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integrate microprocessor to generate bit-stream outputs. Pressing a key sends a coded signal to the controller, and the controller generates a bit-stream output according to an internal program or lookup table. 2. What is a font? What is point size? A font is a collection of characters of similar style and appearance. Point size refers to characters’ height not with. 3. What are the additive colors? What are the subtractive colors? What types of I/O devices use each kind of color? Additive colors
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Input and Output Devices The devices which are used to input the data and the programs in the computer are known as "Input Devices". or Input device can read data and convert them to a form that a computer can use. Output Device can produce the final product of machine processing into a form usable by humans. It provides man to machine communication. Before a computer can process your data, you need some method to input the data into the machine. The device you use will depend on what form this
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