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Question

A system programming language for microcomputers in the Intel family is _________.

A
PL/C
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B
PL/CT
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C
PL/M
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D
PLA
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E
None of the above
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Solution

The correct option is D PL/M

A system programming language for microcomputers in the Intel family is PL/M.

The PL/M programming language (an acronym of Programming Language for Microcomputers) is a high-level language conceived and developed by Gary Kildall in 1973 for Hank Smith at Intel for its microprocessors. The language incorporated ideas from PL/I, ALGOL and XPL, and had an integrated macro processor.

The PL/M programming language (an acronym of Programming Language for Microcomputers) is a high-level language conceived and developed by Gary Kildall in 1973 for Hank Smith at Intel for its microprocessors.

The language incorporated ideas from PL/I, ALGOL[citation needed] and XPL,and had an integrated macro processor. Unlike other contemporary languages such as Pascal, C or BASIC, PL/M had no standard input or output routines. It included features targeted at the low-level hardware specific to the target microprocessors, and as such, it could support direct access to any location in memory, I/O ports and the processor interrupt flags in a very efficient manner. PL/M was the first higher level programming language for microprocessor-based computers and was the original implementation language for the CP/M operating system. Many Intel and Zilog Z80 based embedded systems were programmed in PL/M during the 1970s and 1980s. For instance, the firmware of the Service Processor component of CISC AS/400 was written in PL/M.


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