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Martin Cooper developed the first handheld Motorola cell phone on April 3, 1973. The first cell phone weighed 1.1kg and was 23cm long. This phone took 10 hours to charge and only lasted about 30 minutes of talk time.
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∙ 10y ago
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∙ 16y agoGEMPLUS develop the first sim card in 90's i think......
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∙ 12y agoMartin Cooper - A Motorola researcher and executive. He made the first mobile phone and was the first man to make a mobile phone :)
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∙ 15y agoCells for mobile fone stations were invented in 1947 by Bell Labs engineers at AT&T and further developed by Bell Labs during the 1960s.
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∙ 10y agoThe dual sim concept was invented and patented by an Indian named Somasundaram Ramkumar.
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∙ 13y agoDr. Martin Cooper
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How do you transfer image from mobile phone to PC?
if you want transfer some image or data's from mobile phone to PC (personal computer) first we need memory card reader. First step is remove your memory card from your mobile phone then insert your memory card to the card reader with respective slot.Then insert the card reader to your PC's respective USP port.after this process card will read in your PC. then open your data's as usual process. then copy and paste the image where you want..
Can you use a T-Mobile sim card in an Android phone?
Provided that the Android phone is a GSM-capable phone, and has some of the same bands that T-Mobile uses, then it is possible to use a T-Mobile sim card on it.
Can't see pictures on my mobile phone from a memory card?
Photos are on the memory card, but are not displayed on the phone.
Why wont my att sim card work in a t-mobile phone?
An AT&T sim card will not work in an T-Mobile phone as it is locked to particular carrier itself... If you want to put your AT&T sim in your T-Mobile phone you can try unlocking your phone
Can you use 3g sim card on any mobile phone?
yes u can but first u have to swallow it and poo it out
Can you bay prepaid phone card and where?
To buy your prepaid phone card, it is available at any mobile phone shops around your place.
Can you use at and t card in t mobile phone?
no
Tressing a mobile phone by its sim card number?
how to tressing a phone by it's sim card number in online
Does an unlocked t mobile phone work with a t mobile sim card?
Yes
When you off mobile phone and change the sim card why appeared every time 9.00 am what is the reason explain?
when we off the mobile phone and change a sim card it is appeared 9.00 am on the screen of mobile phone .what is the reason that appeared 9.00 am every time ?
Can you get a SD memory card for your mobile phone from bytetestor?
It is possible to get an SD memory card for a mobile phone from Bytetestor. They sell a wide ranger and will ensure that you get what you need. They can be contacted by email.
Can an unlocked mobile phone take a tesco mobile sim card?
Yes, An "Unlocked" Phone means you can put ANY operator ("Orange", "Vodafone" etc) SIM card in it.
