Operating System (OS)
Assembler language

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

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Operating System (OS)
A public key encryption system

does not encode the data before transmitting it
allows only the correct receiver to decode the data
allows only the correct sender to decode the data
None of these
allows anyone to decode the transmission

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