1234

A microcontroller is a small … on a single integrated circuit.

• semiconductor

• computer

• compiler

Embedded systems usually have … .

• no keyboards, screens, disks, printers or other devices of a personal computer

• a keyboard, screens, disks, printers or other devices of a personal computer

• only a screen and a keyboard

Microcontrollers provide … time response to the events in the embedded system they are controlling.

• real

• approximate

• non-real time

  non-real time

When certain events occur, the … signals the processor to suspend the processing and to begin the interrupt service routine.

• converter

• interrupt system

• compiler

5)… are used to turn high-level language programmes into a compact machine code for storage in the microcontroller memory.

• compilers

• assembly languages

• compilers and assembly language

6)Since the embedded processors are usually used to control devices, they sometimes need to accept … from the device they are controlling.

• input

• output

• the assembly language

6)In addition to the converters, many embedded microprocessors include a variety of … as well.

• timers

• disks

• drain terminals

Microcontrollers have proved to be highly popular in embedded systems since their introduction in the … .

• 1960s

• 1980s

• 1970s

Manufactures have to balance the need to minimize the … against additional functionality.

• the chip cost

• the chip size

• the chip cost and size

About 55% of all CPUs sold in the world are …  -  bit microcontrollers and microprocessors.

• 8

• 5

• 10