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Number Pad

September 9th, 2013

Why is there a dot on the number 5 on all number pads?

I noticed that every number pad like all phones and calculators have a dot over the number 5, why is that so?

In the early days, items with numeric pads, such as caculators and adding machines were used almost exclusively by accountants and the like. Since they had to perform a lot of caculations fast, most learned a method of using the keypad without looking at it. The dot was added as a reference point, so you could identify the 5 key by touch. I believe this method is still taught in typing classes.

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 GOLDTOUCH SK 2730 ADJUSTABLE KEYBOARD UNIT W NUMBER PAD CC5
GOLDTOUCH SK 2730 ADJUSTABLE KEYBOARD UNIT W NUMBER PAD CC5
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Apple Mac Clear Curved A1016 M9270LL A Bluetooth Wireles Keyboard w number pad
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Keycool 22 Key Mechanical Number Pad Black Black w Blue Cherry MX Switches
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Keycool 22 Key Mechanical Number Pad Black Black w Black Cherry MX Switches
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Keycool 22 Key Mechanical Number Pad Black Black w Brown Kaihl Switches
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Asus 173 X73e Series Palmrest with touch pad part number 13gn3x5ap010 1
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Microsoft Sculpt Ergonomic Wireless Keyboard+Number Pad No Mouse USB Receiver
Microsoft Sculpt Ergonomic Wireless Keyboard+Number Pad No Mouse USB Receiver
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Lenovo Yoga 2 11 Model Number 20428 touchscreen 2 in one PC Tablet
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Dell Inspiron N5010 09GT99 Keyboard NSK DRASW Individual Keys
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Targus Numeric Keypad PAUK10U with 2 port USB Hub Keyboard Number Pad
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TARGUS Model AKP01US Wireless Number Pad Numeric Pad
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Logitech Cordless Wireless Number Pad Numeric Keypad Receiver USB
Logitech Cordless Wireless Number Pad Numeric Keypad Receiver USB
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iClever Numeric Keypad Wireless USB 18 Keys Number Pad Black IC KP01 from Japan
iClever Numeric Keypad Wireless USB 18 Keys Number Pad Black IC KP01 from Japan
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For Laptop PC Notebook 18 Keys Numeric Keypad Wireless Wired Number Pad Keyboard
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Targus AKP01US Wireless Stow N Go USB number pad keyboard
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Notebook RETRACTABLE NUMBER PAD GE 98463 REV 3
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MSI GT80S Titan SLI Series Number Keypad Pad
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Ultra thin Portable Wireless Number Keypad 24G Mini 18 keys Num Pad Numeric
Ultra thin Portable Wireless Number Keypad 24G Mini 18 keys Num Pad Numeric
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