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apple has made many products
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they made an ipod. You can listen to music
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apple made a iphone, it is a touchscreen phone that is basically a mini computer in your palm
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they made a more efficent iphone that is faster and has more memory and whistle and bells.
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they look the same but the 4s has a personal manager that you can talk to and tell to do stuff for you,
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they made an iphone 5 it has more capabititys and is faster and way more efficent