Various type of loading schema in loeader system programming
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Compile-and-Go Loaders
Assembler is loaded in one part of memory and assembled program directly into their assigned memory location
After the loading process is complete, the assembler transfers the control to the starting instruction of the loaded program.
Advantages
The user need not be concerned with the separate steps of compilation, assembling, linking, loading, and executing.
Execution speed is generally much superior to interpreted systems.
They are simple and easier to implement.
Disadvantages
There is wastage in memory space due to the presence of the assembler.
The code must reprocess every time it runs.
General Loader Schemes
The general loading scheme improves the compile/assemble-and-go scheme by allowing
different source programs (or modules of the same program) to be translated separately
into their respective object programs.
Moreover, The object code (modules) stored in the secondary storage area; and then, they are
loaded.
Similarly, The loader usually combines the object codes and executes them by loading them into the
memory, including space where the assembler had been in the assemble-and-go
scheme.
Rather than the entire assembler sitting in the memory, a small utility component called
loader does the job.
Note that the loader program is comparatively much smaller than the assembler, hence
making more space available to the user for their programs

Compile-and-Go Loaders
Assembler is loaded in one part of memory and assembled program directly into their assigned memory location
After the loading process is complete, the assembler transfers the control to the starting instruction of the loaded program.
Advantages
The user need not be concerned with the separate steps of compilation, assembling, linking, loading, and executing.
Execution speed is generally much superior to interpreted systems.
They are simple and easier to implement.
Disadvantages
There is wastage in memory space due to the presence of the assembler.
The code must reprocess every time it runs.
General Loader Schemes
The general loading scheme improves the compile/assemble-and-go scheme by allowing
different source programs (or modules of the same program) to be translated separately
into their respective object programs.
Moreover, The object code (modules) stored in the secondary storage area; and then, they are
loaded.
Similarly, The loader usually combines the object codes and executes them by loading them into the
memory, including space where the assembler had been in the assemble-and-go
scheme.
Rather than the entire assembler sitting in the memory, a small utility component called
loader does the job.
Note that the loader program is comparatively much smaller than the assembler, hence
making more space available to the user for their programs
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