Help & Support Case for 32 bit & 64 bit Relation with respect to H/W level, OS level, S/W level (Application S/W & System S/W – EXE File & DLL File)

Question

Hi Team,
Please clarify following details – 

CASE 1: 32 bit & 64 bit Relation with respect to H/W level

CASE 2: 32 bit & 64 bit Relation with respect to OS level

CASE 3: 32 bit & 64 bit Relation with respect to S/W level
(Application S/W & System S/W – EXE file & DLL file)

Type	32 bit	64 bit
		
H/W level	OS 32 Bit, S/W 32 Bit, 
EXE ? DLL ?	OS 32/64 Bit, S/W 32/64 Bit, 
EXE ? DLL ?
OS level	S/W 32 Bit, 
EXE ? DLL ?	S/W 32/64 Bit, 
EXE ? DLL ?
S/W level		
Application S/W & System S/W  EXE file	EXE?	EXE?
Application S/W & System S/W DLL file	DLL?	DLL?
Other		
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