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  2. List of iPad models - Wikipedia

    en.wikipedia.org/wiki/List_of_iPad_models

    Model iPad Air 11-in. (M2) iPad Air 13-in. (M2) iPad Air (5th generation) iPad Air (4th generation) iPad Air (3rd generation) Picture Initial release operating system: iPadOS 17.5 iPadOS 15.4 iPadOS 14.0 iOS 12.2 Latest release operating system: iPadOS 18.2: Display Screen size 10.9 in (280 mm) (diagonal) 12.9 in (330 mm) (diagonal)

  3. International Mobile Equipment Identity - Wikipedia

    en.wikipedia.org/wiki/International_Mobile...

    The IMEI (15 decimal digits: 14 digits plus a check digit) or IMEISV (16 decimal digits: 14 digits plus two software version digits) includes information on the origin, model, and serial number of the device.

  4. Central Equipment Identity Register - Wikipedia

    en.wikipedia.org/wiki/Central_Equipment_Identity...

    The manufacturer for each new device model gets at least one TAC (Type Allocation Code) allocated by GSMA, consisting of 8 digits, to which he can add a 6-digit serial number to obtain the IMEI. Thus, with one TAC, a manufacturer can release up to 1 million devices with a unique IMEI.

  5. Type Allocation Code - Wikipedia

    en.wikipedia.org/wiki/Type_Allocation_Code

    The Type Allocation Code (TAC) is the initial eight-digit portion of the 15-digit IMEI and 16-digit IMEISV codes used to uniquely identify wireless devices.. The Type Allocation Code identifies a particular model (and often revision) of wireless telephone for use on a GSM, UMTS, LTE, 5G NR, iDEN, Iridium or other IMEI-employing wireless network.

  6. Mobile equipment identifier - Wikipedia

    en.wikipedia.org/wiki/Mobile_equipment_identifier

    It consists of three fields, including an 8-bit regional code (RR), a 24-bit manufacturer code, and a 24-bit manufacturer-assigned serial number. The check digit (CD) is not considered part of the MEID. The MEID was created to replace electronic serial numbers (ESNs), whose virgin form was exhausted in November 2008. [1]

  7. iPad (7th generation) - Wikipedia

    en.wikipedia.org/wiki/IPad_(7th_generation)

    The iPad (7th generation) [3] (also referred to as the iPad 10.2-inch [4]) is a tablet computer developed and marketed by Apple Inc. It features a 10.2-inch Retina display and is powered by the Apple A10 Fusion processor. It is the successor to the 9.7-inch 6th-generation iPad. The device was revealed on September 10, 2019, and released on ...

  8. iPad (5th generation) - Wikipedia

    en.wikipedia.org/wiki/IPad_(5th_generation)

    The iPad (5th generation) [3] (also referred to as the iPad 9.7-inch [4]) is a tablet computer developed and marketed by Apple Inc. After its announcement on March 21, 2017, conflicting naming conventions spawned a number of different names, including "fifth-generation iPad" or "iPad (2017)".

  9. Electronic serial number - Wikipedia

    en.wikipedia.org/wiki/Electronic_serial_number

    ESNs are currently mainly used with CDMA phones (and were previously used by AMPS and TDMA phones), compared to International Mobile Equipment Identity (IMEI) numbers used by all GSM phones. [1] The first eight bits of the ESN were originally the manufacturer code, leaving 24 bits for the manufacturer to assign up to 16,777,215 codes to mobiles.