Difference Between SAP-I and SAP-II

SAP stands for Simple As Possible computer. It is the basic model of an micro-computer. It can perform all the basic functionalities of an microprocessor but has an limited, small and simple set of instructions. It's main purpose is to show how an computer operates without burying you into unnecessary details.

Attribute	SAP-I	SAP-II
Counter	0H to FH	0000H to FFFFH
Opcode	4-bit	8-bit
Address	8-bit	16-bit
Registers	B-register only	B,C and Temp register
I/O ports	2	4
W-bus	8-bit	16-bit
Display	Binary Display	Hexa-Decimal Display
No. of Instruction	5	42
Logical Operations	cannot be performed	can be performed
Memory	16 Byte RAM	62 KB RAM and 2 KB ROM