Optical Storage Devices • An optical disk is a high-capacity storage medium. An optical drive uses reflected light to read data. • To store data‚ the disk’s metal surface is covered with tiny dents (pits) and flat spots (lands)‚ which cause light to be reflected differently. • When an optical drive shines light into a pit‚ the light cannot be reflected back. This represents a bit value of 0 (off). A land reflects light back to its source‚ Representing a bit value of 1 (on)
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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
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Weeams Mr. Dutro-Adkins 4TH Hour English November 27‚ 2012 Curfews?? Do they really work? “Yes” What is a Curfew?? Curfew is an order specifying a time after which certain regulation apply. In other words an order made by the government or your family to be home at a certain time. Many cities have imposed curfew over the past years and in most of those cities the curfews has reduced several crimes. Curfews are used to discipline and to keep young teens off the streets and out of trouble
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Is Corruption free India Possible? How you can help? Even after 62 years of India’s independence‚ the plight of common man has worsened. Corrupt public servants‚ corrupt judges‚ corrupt police‚ etc are proving to be parasites leading 5-star lifestyles at taxpayer’s expense. They in their greed for money‚ bribe are aiding & abetting terrorists‚ separatists‚ naxalites‚ underworld mafia‚ etc covertly & overtly‚ backstabbing our motherland. These corrupt public servants are crueler than Jalianwallah
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Unit 6 – Storage Devices & Memory Videos 1.06 and 1.08 covered Storage Devices and Memory. The 1st one covered all the different types of storage devices. It started with hard drives and went on to floppy drives‚ cd’s‚ dvd’s‚ solid state removable and tape drives. It also covered all the interfaces that can be used with them. The video also touched on power connections used to power up the different storage devices. Video 1.08 covered memory. It went through the two different types of memory
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Organizations that do not have IT oversight managing its employees’ mobile devices unintentionally consent to making their assets vulnerable to attack from uninformed user behaviors like improper configuration and risky wireless connections (Search Consumerization). With the mobile market’s flux state adding new emerging technologies rapidly‚ companies have had to adjust from having their networks only accommodate few devices. Initially‚ laptops accessed the network through limited VPN concentrators
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Tracking devices are used for a variety of reasons. One of the most commonly used tracking devices is the bar code and scanner system. The bar code is used all over the world. It is used in almost every store in the world. So where did this amazing piece of technology come from? When was it made? How did it become so successful? These questions are easy to answer because as the technology has developed‚ it has changed the world in mostly positive ways. Most people in the US are afraid of the government
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Non-volatile Storage: The data which is stored in those devices is not lost when the power is switched off. The data is retained. 2. Voluminous data: We can store volumes of data and instructions in these devices. This makes these devices very useful. 3.Relatively Cheaper: These storage devices are relatively cheaper and cost effective than primary memory of the CPU. 4. Portable: These devices act as a portable media for transferring data from
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ANALOG DEVICES‚ INC. (A) Analog Devices Inc. (ADI) was a leading manufacturer of integrated circuits that convert between analog and digital data. From 1981 through 1996‚ ADI experienced periods of growth and stagnation‚ both achieving record profits and sales a experiencing its first loss ever. To meet the needs of the changing market‚ management at ADI introduced a number of different management tools to implement change. One such tool was its corporate scorecard. ADI’s corporate scorecard was
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Immigration And Dual Citizenship: Is It Possible? Vendla A. Bramble Axia College of University of Phoenix What would compel someone into leaving home‚ which is quite possibly the only world he or she may have ever known‚ and move to another country? People immigrate to other countries for a variety of reasons; sometimes it is not of their own volition. Economic reasons have always been a huge deciding factor; one only has to examine Ireland’s Great Potato Famine to understand why people
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