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Data-entry professionals, and others who used calculators fairly regularly, were quite adept at navigating keypads (7, 8 and 9 across the top row). They could hit the numbers extremely quickly, which was great for data entry, but not so great for dialing a touch-tone phone. The tone-recognition technology could not operate effectively at the speeds at which these specialists could dial the numbers. The telephone designers figured that if they reversed the layout, the dialing speeds would decrease and the tone-recognition would be able to do its job more reliably. This theory has little proof to substantiate it, but it does make sense... vipulsahu@iitr
Wiki User
∙ 13y ago
Wiki User
∙ 16y agoThis was done to slow people down. Originally, the phone system could not handle the high speed that Accountants were dialing, so the keypad layout was reversed.
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Do all phones have calculators?
Yes!
Cell phones and calculators are example of technology that are?
Advancing
What do microprocessors work in?
Calculators, cell phones, PDA's, GPS units.
Disadvantages of calculators?
The disadvantages of calculators is that they are no longer practical or convenient. Unless scientific in nature, most people use the calculators on their smart phones and wireless devices. While stand alone calculators are still in use, their popularity has immensely decreased across the nation.
How are cell phones related to math?
cell phones usually have calculators on them which can do math...also the structure of the phone uses measurements and stuff :3
What are some Sony mobile phones?
"Sony makes a number of different mobile phones, most of the them run the Android platform. Most of the Sony Ericcson Xperia phones are the coolest models."
What five technologies can be used to help someone do or complete math problems?
calculators, phones, computers, abacus, maybe a robot!
Which cell phones are available with no plans?
there can be different phones along with at & t and t mobile service. now a days with at & t you get a number of good phones from nokia and sony ericson absolutely free.
Does Samsung mobile make good phones?
Samsung has a large variety of mobile phones that are used with a number of different phone companies. Many Samsung phones have high use ratings and quality reviews.
Calculator use solar panels why don't cell phone calculators do the same?
Phones with solar would mean that the price of the phone would go up. And phones don't need solar panels because they don't pollute. Also, calculators need a very small charge to run, easily provided by a small solar cell. Cell phones need much more energy than that to power their calls.
What is the use Mathematics in information Technology?
Mathematics have helped student to know how to calculate in computer, calculators, cell phones and other telecommunication devices
Examples of processing devices?
Examples of processing device are computers, mobile phones and calculators. Any device that processes data can generally be referred to as a computer.
