BMP (Bitmap). I may be wrong. I'm sorry.
Answer:
Calvert Richard Jones
Explanation:
Just five years later, in 1846, the first known act of photographic retouching was performed by a Welsh colleague of Talbot's named Calvert Richard Jones, or perhaps by one of Jones's associates
It can be any letter or number as long as its validated.
To prevent theft of account information, identity theft, money, important passwords, and personal information.
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