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The Difference Engine was designed to be an instant calculator and it was also created to eliminate human errors during calculations.
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The microphone's purpose was to project sound out louder so you can speak in front of a larger audience without having to shout.
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The TV is used to transmit and receive moving images and sound.
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The first computer was invented at around 1936 and the purpose was for various things, from calculating to sorting information.
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The surveillance camera is used usually in shops or banks to survey the area in case of any thefts or to guard a experiment in case something goes wrong.
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A really compact device used to store information/ programmes.
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A computer mouse is used to control the cursor on your laptop and scroll up and down the page.
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CD stands for compact disk which holds and stores information, photos or videos etc,
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The digital camera is used to take pictures and it usually comes with a charging device.
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This device is a smartphone which is a touchscreen advanced version of a phone.
