Usually in letter sorting and digitising old books.
ocr a used in many different things
no
The full form of "OCR" is Optical Character Recognition. OCR can be used with any digital document (such as a PDF file) to extract its text and either create an editable text file, or a searchable PDF. Some scanner software includes OCR, so that when you scan a document, it is processed with OCR as it is scanned.There's a free online tool at CVISION Tech's website if you want to try using OCR on any document file you might have.
how is petrol used in our everday life
It usually isn't. Scientific notation is used for very large and very small numbers, that are not normally used in your daily life. Unless your "daily life" involves work in science or engineering.
I use the Golden Ratio in my daily life to design websites.
Potable water is primarily used for drinking, cooking, bathing, and cleaning in daily life.
OCR can stand for a lot of things that can be used in economics. My best pick isofficial cash rate (OCR). This term is used in Australia and New Zealand for the bank rate and is the rate of interest which the central bank charges on overnight loans to commercial banks.
In researching your answer I found that OCR software is used to extract text from faxed or scanned documents and pull them into Word or Excel documents.
Sunblock.
You pet them
in alternators