Operating System (OS)
The term 'polling' in a computer means a process by which a computer system

inquires to see if a terminal has any transaction to send
decides correct alternative by analysing several ones
detects/corrects errors
None of these
multiplexes the inputs and updates the memory accordingly

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Operating System (OS)
Assembler language

is usually the primary user interface
is quite different from the SCL interpreter
is a mnemonic form of machine language
requires fixed-format commands
None of these

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