INPUT DEVICES: 1. Keyboard - The keyboard is a way to input letters or numbers into different applications or programs. A keyboard also has special keys that help operate the computer. 2. Mouse - The mouse is used to open and close files‚ navigate web sites‚ and click on a lot of commands (to tell the computer what to do) when using different applications. 3. Touch Screen - A touch screen is a computer screen or other screen that you can touch with your finger to enter information. Examples
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1. Five factors you should consider when assessing the suitability of hardware device for connecting to a computer is; Speed‚ Cost‚ Security‚ Capacity‚ Reliability. 2. When installing a new component into a computer system the tasks involved are; Add the component to the computer‚ either connecting in through an existing port or plugging it into an expansion slot in the motherboard. The available ports on most computers include serial‚ parallel and universal serial
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Embry-Riddle Aeronautical University Input and Output Devices in Aviation Technology is an ever evolving‚ ever changing beast that impacts the lives of every living being. As the technology evolves‚ so does society’s imagination and humankind’s will to test all perceived barriers. Such technological advances have allowed mankind to make metal tubes with wings that soar through the sky at speeds greater than the sound barrier. The same technological advances have allowed humans to instantly
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different ways to input the information and it can be done in an automatic fashion‚ as with a computer‚ or it can be done manually‚ as with a human writing the information down. For instance‚ printed questionnaires would best use a special scanning device called an optical data reader that uses optical mark recognition (OMR); when people complete the OMR form using pencils to fill in boxes on OMR paper an optical mark reader (OMR) can convert the pencil marks into digital data. The best method for
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1. Scanning devices Optical Scanners An optical scanner is a hardware input device that allows a user to take an image or text and convert it into a digital file‚ allowing the computer to read or display the scanned object. Features of the optical scanner include-its design‚ software compatibility‚ type of feeder‚ speed‚ resolution‚ etc. Some advantages of the optical scanner include : • Easy to use • Continuous‚ detailed‚ and scaled true-colour images for documentation and interpretation
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Input Devices Light sensor: Gesture detection – the detection of human movements – may be used to enable advanced‚ differentiated smart features in portable electronics such as smart phones. Many of these features save energy by enabling electronics to expend the minimum amount of energy necessary to provide appropriate screen illumination levels. For example‚ when a phone is held to a user’s ear during normal conversation‚ the user can not see the screen‚ and therefore it may be turned off. This
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Considering the input devices required in setting up the office‚ The major computer gadgets that will be focused on are the Keyboard and Mouse. These input devices are going to play a major in the insertion of data into the office system. KEYBOARD The keyboard is the computer input device that enables the user enter data into the computer .the keys in a keyboard are classified into • Alphanumeric keys-consist of letters and number
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and what zipcode they live in. sort them by last and then first name in ascending order Example output data John James lives in 60543 Matt James lives in 60122 April Harmon lives in 60115 Ans: SELECT fname‚ lname +’ lives in ‘ + ‚ Zipcode FROM student ORDERBY lname‚ fname; 2) Write a query to display the Student id and the number of grades they have received *** example output z12345 7 z14325 12 z11674 2 Ans: SELECT s.Zid‚ count(g.grades) FROM student
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What is output? Output: is data that has been processed into a useful form. The form of output varies depending on the hardware and software being used and the requirements of the user. There are four basic forms of output: 1. Text 2. Graphics 3. Audio 4. Video A webpage includes more than one of these types of output. Video Audio Graphics Text Video clip Songs Logos Memos Vodcasts music Charts Letters Video blogs Speeches Drawings Reports Clipart Advertisements
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student and what zipcode they live in. sort them by last and then first name in ascending order Example output data John James lives in 60543 Matt James lives in 60122 April Harmon lives in 60115 SELECT fname‚ lname +’ lives in ‘ + ‚ zipcode FROM student ORDERBY lname‚ fname; 2) Write a query to display the Student id and the number of grades they have received *** example output z12345 7 z14325 12 z11674 2 SELECT s.zid‚ count (g.grade) FROM student s‚ grades g WHERE s
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