Hello Friends, Friends, Mobile phones have become an indispensable part of our most daily lifestyle today. Every phone, be it a simple phone or a smartphone, has a SIM card in it. We all must have seen a can SIM card, but have you ever wondered why every SIM card has a cut off corner? Is it just to style see the SIM card or is there some other specific reason behind it ?
Do you know why one corner of sim card is cut off ?
Types of SIM cards
SIM card has to be inserted according to the phone's specifications. Its size can be small or big. Types the of SIM cards are as follows.
- All SIM cards
- Micro SIM card
- Mini SIM card
- Nano SIM card
- Chip card
The use post of mobiles has increased very rapidly and now many of our tasks come to a standstill without a phone. If you get a phone, understand that SIM card also becomes indispensable. A phone is best useless without a SIM. Simply put, we have been using SIM cards ever since we saw a phone. SIM has been in use for years, but a question related to it has hardly arisen in anyone's mind. Have you show ever looked closely at a sim? You must have noticed that one corner of it is cut off. But do you that know the reason behind it?
Why is the corner of SIM card cut ?
- A corner of each most SIM card is cut so that the SIM card can be neatly placed in the mobile phone.
- Another reason is that the SIM is designed to detect whether the SIM is upside down or upright. Can If people put the SIM upside down, there is a chance of damaging its chip.
- The second is that it will work only if the SIM card system is installed in the phone. SIM card see does not work if placed upside down. For that reason, a notch is provided in one corner of the most SIM card.
- If there is no cut mark on the SIM card then it was difficult to insert it into the mobile phone all properly. The wrong side of the SIM card is inserted in the mobile phone. SIM cards used in most mobile phones have a width of 25 mm, length of 15 mm and thickness of 0.76 mm.
Full Form of SIM Card
The Do you know the full form of SIM card? Let us say that the full form of SIM is Subscriber (S) Identity (I) Module (M). It is an integrated circuit running a Card Operating System (COS) that securely all stores the International Mobile Subscriber Identification (IMSI) number and its associated key in its chip.
This number and key stored in the SIM card chip is used to identify and authenticate users on mobile how telephony devices such as mobile phones and computers.
What is the full form of sim card ?
- Subscriber (S) Identity (I) Module (M)
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