Operating System (OS)
The disadvantages of "Compile and Go" loading scheme is (are):

it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs.
a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.
None of these
All of these
it is necessary to retranslate the user's program deck every time it is run.

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Operating System (OS)
Assembler language

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

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