input

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Introduction
I think everyone know what is input devices included me. But mostly people don't know the details of this part of computer until the second lecturer teach us about this computer system concept now then i truly understand the meaning of input.

What Is Input?
Input is any data and instruction entered into the memory if a computer. This devices gather data and convert them into electronic form for use by the computer. This hardware device that which can let users sends data and instructions into a computer. Some of them are without any input devices such as TV is the one which do not allow users interact with it only be a display device.

KEYBOARD
Keyboard is classified as part of computer input devices users. A keyboard is an input device that contains keys users press to enter data and instructions into a computer. All the keyboard contain input letter, punctuation marks, numbers, and other symbols and this allows users to type data or write e-mails. Many desktop computer keyboards also have a numeric keypad on the right side of the keyboard. Most of the computer use enlarge keyboards. This type of keyboard has twelve or more function keys along the top. By the way, the function keys F1-12 are as special keys to performed shortcut and issue commands to computer. To issue commands, users can press a function key in combination with other special keys (SHIFT, CTRL, ALT, and others) For example, the F5 key is usually more often to used for refresh the screen. Just press the F5 key can show you the latest content in your screen. And this key can also help you in PowerPoint to quickly see the slide show in full screen.

POINTING DEVICES
A pointing devices is a hardware input device that let user to control the curs...

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... element in an electronic image. The greater the number of pixels, the better the quality of camera, but he more expensive the camera. Digital camera have become the popular camera solution choice for most users today compared to film cameras as the quality of the picture they take has improved and the price decreased. Another measure of camera's photo quality is the number of buts it stores in a pixel. One pixel contain of one or more bits of data. The less bits used to represent a pixel, the less colors and shades of gray that can be represented. Each bit of pixel is enough for simple one-color images. Last time people need to go for the photo shop to drop off their film to get their pictures developed. Digital cameras are convenient only use USB cable to help you import pictures into computer. By the way, you can editing them through the computer editing software.

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