UNIT 1:
Overview of System Software Introduction, Software, Software Hierarchy, Systems Programming,Machine Structure, Interfaces, Address Space, Computer Languages,Tools, Life Cycle of a Source Program, Different Views on the Meaningof a Program, System Software Development, Recent Trends in Software Development, Levels of System Software

UNIT 2:
Overview of Language Processors Programming Languages and Language Processors, LanguageProcessing Activities, Program Execution, Fundamental of LanguageProcessing, Symbol Tables Data Structures for Language Processing: Search Data structures,Allocation Data Structures.

UNIT 3:
Assemblers Elements of Assembly Language Programming, Design of theAssembler, Assembler Design Criteria, Types of Assemblers, Two-PassAssemblers, One-Pass Assemblers, Single pass Assembler for Intel x86 , Algorithm of Single Pass Assembler, Multi-Pass Assemblers, AdvancedAssembly Process, Variants of Assemblers Design of two passassembler,

UNIT 4:
Macro and Macro Processors Introduction, Macro Definition and Call, Macro Expansion, NestedMacro Calls, Advanced Macro Facilities, Design Of a Macro Preprocessor,Design of a Macro Assembler, Functions of a Macro Processor, Basic Tasks of a Macro Processor, Design Issues of MacroProcessors, Features, Macro Processor Design Options, Two-Pass MacroProcessors, One-Pass Macro Processors

UNIT 5:
Linkers and Loaders Introduction, Relocation of Linking Concept, Design of a Linker, Self-Relocating Programs, Linking in MSDOS, Linking of Overlay StructuredPrograms, Dynamic Linking, Loaders, Different Loading Schemes,Sequential and Direct Loaders, Compile-and-Go Loaders, GeneralLoader Schemes, Absolute Loaders, Relocating Loaders, PracticalRelocating Loaders, Linking Loaders, Relocating Linking Loaders, Linkers v/s Loaders