Opration Procedure of Early Computers

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博客介绍了汇编程序的处理流程。首先加载器将汇编器读入主存并移交控制权，汇编器读取用户源程序和库例程并组装成可执行机器码。因主存小，机器码会写入磁带或卡片。之后加载器再将完整程序读入主存执行，输出结果会写入磁带、卡片或由行式打印机打印。

First a loader would read an assembler into main memory and transfer control to it. The assembler then read the user source program and library routines, which generally from punched cards or paper tape, and assemble these into excutable machine code. For the main memory was very small, the excutable machine code would be written to a magnetic tape or punched cards as it was producted by the assembler. A loader would again be invoked to read the complete assembled program into main memory that would be excuted. Any of the output generated would be either written to the tape or cards, or printed by a line printer.