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BRAINTRAIN > [ELEX] MICROELECTRONICS > Flashcards

[ELEX] MICROELECTRONICS Flashcards

1
Q

It is defined as that area of technology associated with and applied to the realization of electronic systems made of extremely small electronic parts or elements.

A

MICROELECTRONICS

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2
Q

First Computer; also known as “The Counting Frame”

A

ABACUS

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3
Q

First Mechanical Computer

A

PASCALINE

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4
Q

First Digital Computer

A

Atanasoff-Berry Computer and Electronic Numerical Integrator and Computer (ENIAC)

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5
Q

Vacuum Tubes Era

A

1925

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6
Q

What component was invented in 1947 and who invented it?

A

Point Contact Transistors by Walter Brattain, John Bardeen, and William Shockley, Bell Labs

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7
Q

What component was invented in 1949 and who invented it?

A

Bipolar Junction Transistors by William Shockley, Bell Labs

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8
Q

When did Bell Labs patented the Transistor Tech?

A

1952

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9
Q

An elementary electronic device constructed as a single unit.

A

Discrete Electronic Circuits

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10
Q

When did Texas Instruments produce the first commercial silicon transistor?

A

1954

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11
Q

What was invented in 1958 and who invented it?

A

Jack Kilby’s Integrated Circuit

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12
Q

What was invented in 1958 and who invented it?

A

Robert Noyce’s Integrated Circuit

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13
Q

It consists of elements inseparably associated and formed on or within a single substrate.

A

Microchip

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14
Q

It is a miniaturized electronic circuit that has been manufactured in the surface of a thin substrate of semiconductor material.

A

Integrated Circuit

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15
Q

What is the first microprocessor and when was it invented?

A

Intel 4004 ; 1971

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16
Q

What is the first 32-bit microprocessor and when was it invented?

A

Intel 80386 ; 1978

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17
Q

What is the first microprocessor with 1 million transistors and when was it invented?

A

Intel 486; 1989

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18
Q

How many gates per chip are there in a Small Scale Integration?

A

Less than 12 gates per chip

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19
Q

How many gates per chip are there in a Medium Scale Integration?

A

between 12-100 gates per chip

20
Q

How many gates per chip are there in a Large Scale Integration?

A

more than 100 gates per chip

21
Q

How many gates per chip are there in a Very Large Scale Integration?

A

excess of 100,000 gates per chip

22
Q

How many gates per chip are there in an Ultra Large Scale Integration?

A

more than 1 million gates per chip

23
Q

It is a law that states, “The number of transistors on a microchip doubles every two years, though the cost of computers is halved.” and who said it?

A

Moore’s Law by Gordon Moore

24
Q

It is the science and engineering of making intelligent machines, especially intelligent computer programs.

A

Artificial Intelligence

25
Q

It is used in circuits that could add, subtract, multiply, and even solve differential equations.

A

Operational Amplifiers

26
Q

What are the basic parts of an operational amplifier?

A

Differential Amplifier
Voltage Amplifier
Push-Pull Amplifier

27
Q

It consists of two transistors in which one is NPN and another is PNP. It also supplies high power to the load.

A

Power Amplifier

28
Q

It is the maximum rate at which amplifier output can change in volts per microsecond.

A

Slew Rate

29
Q

It is the DC current required by the inputs of the amplifier to properly operate the first stage.

A

Input Bias Current

30
Q

It is the difference of the input bias currents, expressed as an absolute value.

A

Input Offset Current

31
Q

It is defined as the input voltage that would produce the same output error voltage in a perfect differential amplifier.

A

Input Offset Voltage

32
Q

It is the frequency of signal at which the voltage gain is 1. Also called as Unity Gain Bandwidth

A

Unity Gain Frequency

33
Q

are relaxation oscillator circuits that oscillate between high and low-level states at the output. It also uses two active components coupled in such a way that one is conducting, while the other is cut-off

A

Multivibrators

34
Q

A type of state that will not change unless the circuit is disturbed.

A

Stable State

35
Q

A type of state that remains unchanged for only certain period of time.

A

Quasi-Stable State

36
Q

It has 2 stable states and no quasi-stable state.

A

Bistable

37
Q

Also known as One-Shot Multivibrator with 1 stable state and 1 quasi-stable state.

A

Monostable

38
Q

It has no stable-state but has 2 quasi-stable state. Also known as “Free-Running”

A

Astable

39
Q

A differentiator is used to measure:

A. The sum of the input voltage
B. The difference of the input voltages
C. The area under the curve
D. The rate of change of the input voltages

A

D. The rate of change of the input voltages

40
Q

Ideally, the value of the CMRR is ________. Practically, the _________ the value of CMRR, the better the circuit operation.

A. Zero, smaller.
B. Infinite, larger
C. infinite, smaller
D. Zero, larger

A

B. Infinite, larger

41
Q

The integrated circuit was invented at Texas Instrument in 1958 by

A. Jonathan Kurtz
B. James Faug
C. Jack Kilby
D. Harold Lanche

A

C. Jack Kilby

42
Q

Which component cannot be fabricated into ICs?

A. Diode
B. Resistor
C. Inductor
D. Transistor

A

C. Inductor

43
Q

Which integrated circuit is having 10 to 100 gates?

A. Small-scale Integration (SSI)
B. Medium-scale Integration (MSI)
C. Large-scale Integration (LSI)
D. Very large-scale integration (VLSI)

A

B. Medium-scale Integration (MSI)

44
Q

What is the typical input resistance of the op-amp amplifier when measured under open loop?

A. 2 M(ohms)
B. 3 M(ohms)
C. 1.5 M(ohms)
D. 2.5 M(ohms)

A

A. 2 M(ohms)

45
Q

TRUE OR FALSE: A good op-amp has low voltage gain, low output impedance, and high input impedance.

A

FALSE because it should have HIGH VOLTAGE GAIN

BRAINTRAIN (6 decks)

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