Microprocessor
A sequence of two registers that multiplies the content of DE register pair by two and stores the result in HL register pair (in 8085 assembly language) is

 XCHG & DAD H
 PCHL & DAD D
 XCHG & DAD B
 XTHL & DAD H

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
A microprocessor is ALU

 and control unit on a single chip.
 register unit and control unit on a single chip.
 register unit and I/O device on a single chip.
 and memory on a single chip.

ANSWER DOWNLOAD EXAMIANS APP