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Test your basic knowledge |
Digital Fundamentals
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions
Antifuse
Demultiplexer
Clear
Central processing unit
2. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load
Data Selector
Ampere- hour(Ah) rating
Vx=(Vs * Rx) /RT
Decoder
3. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function
Circuit
Counter
bed- of- nails
Base address
4. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.
Closed circuit
Capacity
Kirchoff's Current Law(KCL)
Attenuation
5. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop
bed- of- nails
Compiler
Bus interface unit
Clock
6. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte
Bleeder Current
Access time
Alphanumeric
Address
7. A combination of input literals that cannot occur and can be used as a 1 or 0 on a Karnaugh Map for simplification
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8. The range of frequencies for which the current (or output voltage) is equal to or greater than 70.7% of its value at the resonant frequency that is considered to be passed by a filter.
Bandwidth
Carry
DAT
D Flip-Flop
9. A device used to convert an analog signal to a sequence of digital codes
Admittance
Diode
Analog- to- digital converter(ADC)
TTL
10. A condition where all the load currents are equal and the neutral current is zero
Central processing unit
Balanced Load
Decode
CPLD
11. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Carry propagation
Collector
Battery
Bitstream
12. American Standard Code for Information Interchange; the most widely used alphanumeric code.
Charge
Data Selector
Carry propagation
ASCII
13. A group of eight bits
Duty cycle
Capacitance Reactance
Bleeder Current
Byte
14. American National Standards Institute
ANSI
Astable
Attenuation
Balanced Load
15. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Bit time
Ampere- hour(Ah) rating
Carry
Circuit Breaker
16. The action of a circuit in which it accepts current into its output from a load
Analog- to- digital converter(ADC)
Attenuation
Current sinking
Bleeder Current
17. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
DAT
Base address
Battery
Bistable
18. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.
bed- of- nails
Average value
Distributive Law
Addend
19. Transistor-Transistor Logic and is implemented with bipolar junction transistors
TTL
Central processing unit
Norton's Theorem
Code
20. American wire gauge; a standardization based on wire diameter
ALU
Assembler
AWG
Clock
21. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Analog
DIMM
Charge- coupled device
Assembler
22. Digital Signal Processor; a special type of microprocessor that processes data in real time
ASCII
Data Sheet
Comparator
DSP
23. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously
DRAM
Concurrency
Control Bus
Autotransformer
24. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Assembler
Bitstream
DMA
Collector
25. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction
Dynamic Memory
Digital linear tape
Kirchoff's Voltage Law
BJT
26. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
Decimal
CPLD
DSP
Counter
27. A class of integrated logic circuits that is implemented with a type of field effect transistor
CMOS Complementary Metal Oxide Semiconductor
TTL
Bit time
Circuit
28. A method of analog- to- digital conversion using a 1- bit quantization process
Decrement
Carry
Delta Modulation
Charge
29. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Carry
Analog- to- digital (A/D) conversion
Combinational logic
Address Bus
30. An expression of variables and operators used to express the operation of a logic circuit
Admittance
Compiler
Dividend
Boolean expression
31. A type of inductor used to block or choke off high frequencies
Choke
Collector
Band- stop filter
Bleeder Current
32. A set of interconnections that interface one or more devices based on a standardized specification
AND
DAT
Bleeder Current
Bus
33. Digital audio tape; a type of magnetic tape format
DAT
Buffer
Commutative Law
Bus contention
34. The portion within the microprocessor that provides the timing and control signals for getting data into and out of the microprocessor and for synchronizing the execution of instructions.
Control Unit
Decoder
Decade
Aliasing
35. The inverse of opposite of a number - in Boolean algebra - the inverse function - expressed with a bar over the variable. The complement of a 1 is a 0 - and vice versa
CLB (Configurable Logic Block)
DAT
Digital linear tape
Complement
36. A interconnection of electrical components designed to produce a desired result. A basic circuits consists of a source - a load and an interconnecting current path.
BJT
Capacitance
Circuit
Bandwidth
37. Altera HDL; a nonstandard HDL
Asynchronous counter
AHDL
Analog- to- digital converter(ADC)
Associative law
38. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Boundary scan
Delta Modulation
Astable
Base
39. A bridge circuit that is in the balanced state as indicated by 0 V across the output.
Charge
Complement
Balanced Bridge
Bitstream
40. Sum of all the voltage drops in series equals to the source voltage
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41. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Delta Modulation
Center Tap
Dependency notation
Comparator
42. The VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.
Binary coded decimal
Decode
Bistable
Architecture
43. Characterized by ten states or values
Decimal
Decade
Boundary scan
Kirchoff's Voltage Law
44. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Analog- to- digital converter(ADC)
Atomic number
Byte
Thevenin Equivalent Circuit
45. Having two directions. the stored data can be shifted right or left
Delta Modulation
Bidirectional shift Register
Data
ALU
46. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.
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47. A series of bits describing a final design that is sent to the target device during programming
Bitstream
Bus contention
Average value
Comparator
48. A digital circuit device that converts coded information into another (familiar) or noncoded form
Data Sheet
Circular Mil (CM)
Assembly language
Decoder
49. The maximum value of a voltage or current
Amplitude
DCE
Attenuation
Bias
50. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Apparent power
Battery
Attenuation
CLB (Configurable Logic Block)