Operating System (OS)
The category of operating system that you most likely have running on your PDA computer is a ....... Operating system

Multiuser, multitask
Single user, multitask
Single user, single task
Real time

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Operating System (OS)
Assembler language

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

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