Digital Electronics Quiz

What was invented by Bardeen and Brattain in 1947?

• Bipolar transistor

• Triode vacuum tube

• Integrated circuit

• Solid-state rectifier

What does Moore's Law state?

• The number of transistors on a chip doubles annually

• The cost of semiconductor tools doubles every four years

• Software is slowing faster than hardware is accelerating

• A network’s value grows proportionately to the number of its users squared

What is the smallest possible voltage change in a D/A converter known as?

• Least significant bit

• Most significant bit

• Output voltage

• Input voltage

What is the output of a four-bit A/D converter when the input is 0?

• 0000

• 1111

• 0011

• 0101

What is the feature size reduction in microelectronics enabled by?

• Process innovations

• Material innovations

• Design innovations

• Software innovations

What is the primary advantage of digital signals over analog signals?

• No degradation during transmission

• Continuous values

• Higher complexity

• Lower cost

What is the DOK level of the question about the number of transistors on a chip?

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OFF

Are these analogue or digital?

• Water tap

• Dimmer switch

• Light switch

• Traffic lights

• Volume control on a radio

The problem with analog signals is noise – hiss on the sound and speckly dots on the picture.

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OFF

If we convert the signal into digital form, then send it, it still gets weaker and noise still creeps in.

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OFF