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What are these things?. Look Closely. Take a Guess. Any New Ideas?. The Future. Ladies & Gentlemen, Congratulations! You've just now looked into the future...Yes that's right! You've seen something that would replace your PC in the near future.... NOW SEE THIS!!!.

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The future l.jpg
The Future

  • Ladies & Gentlemen,

    Congratulations! You've just now looked into the future...Yes that's right! You've seen something that would replace your PC in the near future....

    NOW SEE THIS!!!


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In the revolution of miniature computers, the scientists are ahead with BLUETOOTH technology... See the forthcoming computers within your pockets.


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RELEASE DATE: February 1, 2006 well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.


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INPUTS well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

Intro to Computer Technologies


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Objectives well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Upon completion of this lesson, students will be able to:

  • Identify all input plug ins on computer

  • Describe what a peripheral is

  • Explain what Ergonomics is


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What is an Input Device? well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • All hardware devices that make a connection and sends information to the CPU are called peripheral devices.

  • Without any peripheral devices a computer would simply be a display device and not allow users to interact with it, much like a TV.

  • Input can take a variety of forms


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Examples of Hardware Peripherals well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Track Balls

  • Light pens

  • Modems

  • Graphics Tablets

  • Speech Recognition Devices

  • Keyboard

  • Mouse

  • Joystick

  • Microphone

  • Scanner

  • Touch Sensitive Screens


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Keyboards well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • The most frequently used input device

  • Used to enter instructions and data via keys.

  • Most keyboards have between 80 and 110 keys, including:

    • Typing keys

    • A numeric keypad

    • Function keys

    • Control keys

  • When a key is pressed, a microprocessor in the keyboard interprets the signal generated as a digital code that can be sent to the computer.


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QWERTY??? well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • First 6 letters of your keyboard

  • All 26 letters were arranged to make typing more difficult

  • Typewriter in 1873

  • Originally arranged alphabetically

  • Keys would stick or jam when struck in succession.

  • Made the job of typing as slow as possibly

  • Placed the most frequently used keys as far apart from each other.


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Ironic well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Every other aspect of your computer is streamlined for maximum efficiency

  • You are typing on a 134 year old system designed specifically for inefficiency

  • Why didn’t they try to change it?

  • They did, but we were used to the Qwerty Board. Society would not adapt.


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DVORAK Simplified Keyboard well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Currently, all major Operating Systems (such as Apple OS X, Microsoft Windows, GNU/Linux and BSD) ship with Dvorak keyboard layout.


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Handling a Keyboard well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Always turn the computer off before plugging in or unplugging a keyboard.

  • Failing to do so can seriously damage the motherboard

  • Computer is constantly scanning for the state of the keyboard.

PS/2 connector

USB Connectors


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Ergonomic Problems well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.


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Ergonomics well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Ergonomic keyboard designs are intended to keep a person's hands in a more natural position while typing in an attempt to prevent injuries

  • Form, Fit, Function


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Optimus well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Programmable hot keys


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Mouse well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Developed in 1968, widely used in 1980’s.

  • Includes a case that fits the hand

  • Needs a software program to tell how to relate it to the physical hardware movement to an on-screen pointer

  • Control buttons

The First Mouse


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Purpose of a Mouse well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • The main goal of any mouse is to translate the motion of your hand into signals that the computer can use.

  • A ball inside the mouse touches the desktop and rolls when the mouse moves.


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Optical Mouse well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Uses a tiny camera to take thousands of pictures every second

  • Works on virtually any surface

  • Uses light-emitted diode (LED) or lasers

  • Resolution- # of pixels per square inch

  • 400 or 800 dpi

  • Gamers buy 1600 dpi


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Benefits of Optical Mouse well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • No moving parts means less wear and a lower chance of failure.

  • No way for dirt to get inside the mouse and interfere with the tracking sensors.

  • Increased tracking resolution means a smoother response.

  • They don't require a special surface, such as a mouse pad.


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Flatbed Scanners well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • AKA. Desktop scanners

  • The basic principle of a scanner is to analyze an image and process it in some way.

  • Larger versions have a flat bed, like that of a photocopier, on which the input document is placed and scanned.

  • Image and text capture (optical character recognition or OCR) allow you to save information to a file on your computer.


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Scanners well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

  • Scanners Produce a digital image of a document for input and storage in a computer

  • You can then alter or enhance the image, print it out or use it on your Web page.

  • Resolution = dots per inch, the more dpi’s the better the quality


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