8051 series has how many 16 bit registers?

When 8051 wakes up then 0x00 is loaded to which register

AT89C2051 has RAM of:

When the microcontroller executes some arithmetic operations, then the flag bits of which register are affected?

If we push data onto the stack then the stack pointer

. On power up, the 8051 uses which RAM locations for register R0- R7

. How many bytes of bit addressable memory is present in 8051 based microcontrollers?

Which architecture is followed by general purpose microprocessors

Which architecture provides separate buses for program and data memory?