MICROPROCESSOR QUIZ

 Accumulator, temporary register, arithmetic and logic circuits

 Accumulator, arithmetic, logic circuits and five flags

 Accumulator, arithmetic and logic circuits

 Accumulator, temporary register, arithmetic, logic circuits and five flags

 D and E

 W and Z

 H and L

 B and C

 8251

 8253

 8279

 8257

 None

 Bi-directional

 Unidirectional

 Either unidirectional or bi-directional

 2 bytes

 3 bytes

 4 bytes

 1 bytes

 244

 247

 246

 245

 Devices have 8-bit address line

 There can be maximum of 256 input devices and 256 output devices

 Devices are accessed using IN and OUT instructions

 Arithmetic and logic operations can be directly performed with the I/O data

 16.

 64.

 128.

 32.

 EC = IC + FC

 IC = FC + EC

 IC = FC - EC

 IC = FC + 2EC

 lower order address lines

 status lines

 higher order address lines

None of these