Microcontrollers usually have ()
A. CPU
B. CPU+RAM+ROM
CPU+RAM+ROM+Peripherals
D. CPU+RAM+ROM+Peripherals+Buses
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An 8-bit microprocessor has essentially ()
A. 8-bit ALU
B. 8-bit Accumulator
C. Most registers are 8-bit registers
D. all of these candidates
An embedded microcontroller usually means ()
A microcontroller for the embedded system
B. microcontroller with embedded processor
C. A microcontroller with external memories storing the embedded software
D. microcontroller with all necessary resources available on-chip.
Which of the following is output device?()
A. keyboard
B. mouse
C. display screen
D. scanner
() address lines are required to address 2K*8 bit memory.()
A. 11
B. 14
C. 10
D. 16
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