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In managed alarm systems, the control panel also checks the sensors to verify that they are still operational; if a sensor fails to reply, the center alerts the home owner of an out of order sensor. If the home owner activates the alarm system and the control center registers activity in the home, a signal is sent by the control to a buzzer, flashing lights or any other audiovisual alarm element. Our design for a functional keypad was the usage of an alternation of ports between inputs and outputs which is done by using the TRIS function. We started off by setting the first four ports of PORTB as the inputs and the latter four ports as the outputs. The first four ports are connected to the columns meanwhile the last four are connected to the rows. Moreover, as a justification for this reasoning is the fact that it is required to scan the columns for the pressed key and then scan the rows and the results will be decoded in a decoder telling us which button of the keypad was pressed. The main functionality of the keypad as mentioned earlier is to set the code. The alarm can be armed and disarmed with a standard four digit user code in our case. The master code is a step above a regular user code. It is used to unlock the system, as well as programming or erasing a regular user code. Theoretically it can also be used to bypass some sensors.

 

 

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home keyless entry systemsFor a cyber place with an associated computer mediated group to be labeled as a virtual settlement it is necessary for it to meet a minimum set of conditions. These are: 1 a minimum level of interactivity; 2 a variety of communicators; 3 a minimum level of sustained membership; and 4 a virtual common public space where a significant portion of interactive computer mediated groups occur Weinreich, 1997. The notion of interactivity will be shown to be central to virtual settlements. Further, it will be shown that virtual settlements can be defined as a cyber place that is symbolically delineated by topic of interest and within which a significant proportion of interrelated interactive computer…… " Harman, Flite, and ond, 2012 the key to the preservation of confidentiality is "making sure that only authorized individuals have access to that information. The process of controlling access limiting who can see what begins with authorizing users. " Harman, Flite, and ond, 2012 Employers are held accountable under the HIPAA Privacy and Security Rules for their employee's actions.

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