MICROPROCESSOR

 21.

 27.

 40.

 19.

 It has to fetch two 8-bit data at a time

 It facilitates the user storing 16-bit data temporarily

 There are 16 address lines

 It counts 16-bits at a time

 and control unit on a single chip.

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

 and memory on a single chip.

 register unit and control unit on a single chip.

 Enable the data bus to be used as low order address bus

 To achieve all the functions listed above

 To disable data bus

 To latch data D0-D7 from data bus

 Source program

 Macroinstruction

 Object program

 Symbolic addressing