EE 205 Lecture Notes 2012 Combinational Logic Combinational Logic: The outputs depend on the present values of inputs. In other words‚ they are logic combinations of the inputs. Sequential Logic: The outputs depend not only on the present but also on the past inputs. Problem Statement Truth Table min. number of gates min. number of inputs to gates Simplification min. propagation time min. number of interconnections Implementation type of gates Adders Half-adder performs
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Input Controls Raymond Chandler Professor Chad Frommeyer CIS210036VA016-1142-001 (Systems Analysis And Development) 02/11/2014 Input controls are an integral part of a user interface (UI)‚ which enable the user to interact with a software program and its data. Input control includes the necessary measures to ensure that input data is correct‚ complete and secure (Rosenblatt & Shelly‚ 2012). There are many types of input controls that can be used in various applications
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Input Controls When we talk about input controls‚ what are we really talking about? Input control includes the necessary measures to ensure that data is correct‚ complete‚ and secure. A system analyst must focus on input control during every phrase of input design‚ starting with source documents that promote data accuracy and quality. (Shelly & Rosenblatt‚ (2012)). Input controls can help the flow of data in a database to be the same format and easy to understand. Without input controls there can
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Input Controls Pamela D. Thompson Professor Nolyn Johnson May 19‚ 2013 Abstract This paper will discuss input controls and their various functions. An input control includes the necessary measures to ensure that data is correct‚ complete‚ and secure (Shelly & Rosenblatt‚ 2012). Input controls as it relate to user interface‚ includes audit trails‚ password security‚ data security‚ and encryption (Shelly & Rosenblatt‚ 2012). It is vital a company should take all needed measures
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Input Control Jamie Robinson Professor Mohammed CIS 210 August 11‚ 2012 Input Control Input controls are fail safes that ensure that data is entered correctly‚ completely‚ and securely‚ in order to complete forms. As a systems analyst‚ one must focus on input control in every step of input design. There are many types of input control that can be implemented during the design process; all of which have a function necessary to maintain the integrity of the transaction. To list all of the
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(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
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between a mouse and a tracker ball are that a trackerball moved against two internal rollers to record the direction that the mouse was being moved in and a mouse uses ’optical’ or ’wireless’ technology to track mouse movement. 7. Which type of input device would you choose if you were going to play a ‘shoot ‘em up’ computer game? If you were going to play a shoot em up computer game you would use a joystick 8. Who is likely to use a
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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 the
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(from the input to the output). 2. (0.3 points) Problem 7 from Section 5.10. Simply find the minterm numbers for X and Y from the diagram. 3. (0.5 points) Use an 8-to-1 MUX (74LS151 above) to implement f(W‚ X‚ Y‚ Z) = ∑m(0‚ 1‚ 3‚ 6‚ 9‚ 12‚ 15). Pair rows (0-1‚ 2-3‚ ...) so that MUX inputs are 0‚ 1‚ Z‚ or Z’. Show chip enabled‚ connect variables to address lines‚ and label function output. 4. (0.5 points) Use a 3-to-8 DECODER (74LS138 above) and an external gate AND or NAND with the fewest inputs to implement
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There are many kinds of input controls. Write a 4-5 page paper in which you: •Explain the function of input controls. •Identify four (4) types of input control and explain the function of each. •Provide an example of a data integrity error that could occur if each of these types of input control were not in place. •Explain the advantages and disadvantages of restricting user interfaces. (User interfaces can often be restricted‚ limiting the user’s ability to navigate to other areas of the system
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