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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Step 1: Develop a minimum of 5 goals you either have or would like to have. 1. I want to lose weight. 2. I want to open a home for the elderly. 3. I want to buy a new car. 4. I want to learn Spanish. 5. I want to graduate college with a 3.5 GPA or higher. Step 2: Re-write each of your established goals from Step 1 using the S.M.A.R.T. Goal format; (See the example in the Quick Reference Notes in the VIP2 Toolbox). 1. I want to lose weight. S= I want to lose 60 pounds
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Input Device is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance. A keyboard is the most common input device. Using a keyboard‚ the user can type the text and execute commands. Keyboard is designed to resemble a regular typewriter with a few additional keys. Data is entered into the computer by simply pressing various keys. The layout of a keyboard comes in various
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INPUT/OUTPUT ORGANIZATION • Accessing I/O Devices • I/O interface • Input/output mechanism Memory-mapped I/O y pp / Programmed I/O Interrupts Direct Memory Access • Buses Synchronous Bus Asynchronous Bus I/O in CO and O/S • • • Programmed I/O Interrupts DMA (Direct memory Access) A bus is a shared communication link‚ which uses one ‚ set of wires to connect multiple subsystems. The two major advantages of the bus organization are versatility and low cost. Accessing I/O Devices
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Input‚ Process and Output In any business‚ the first thing you have to think about is the input. The input varies depending on what kind of a business you are thinking of. Ill be discussing the inputs‚ Processes and outputs with regards to farming. There are different types of farming such as arable farms‚ which the main way of making profit is by growing crops. Then theres livestock farming where animals are the main source of profit. And lastly mixed farms where animals and crops are both
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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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making non-text selections such as menu choices on the till of a fast food outlet. The keyboard is also waterproof which can be useful where there is dirt or the risk of splashes. 5. Explain why a mouse often called a pointing device A mouse is often called a pointing device because it enables you to control what happens on the screen by moving the mouse on your desk and pointing‚ clicking and selecting items on the screen. 6. Describe the difference between a mouse and a tracker ball? The difference
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INPUT DEVICES 1. Where does the name QWERTY keyboard come from ? The name QWERTY comes from the first six letters on the top row of the alphabet keys. 2. Why do think the QWERTY keyboard is the most popular method of data entry? The QWERTY keyboard is the most popular method of entering data because an easy way of usage and when you get used to it you start typing faster 3. Who might make use of a concept keyboard? A concept keyboard might be used by a fast food restaurant
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INPUT DEVICES 1. Where does the name QWERTY keyboard come from ? The name QWERTY comes from the first six letters on the top row of the alphabet keys. 2. Why do think the QWERTY keyboard is the most popular method of data entry? The QWERTY keyboard is the most popular method of entering data because an easy way of usage and when you get used to it you start typing faster 3. Who might make use of a concept keyboard? A concept keyboard might be used by a fast food restaurant
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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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