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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. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.
ANSI
Data Selector
Carry generation
Bistable
2. A binary digit - which can be either 1 or 0
CLB (Configurable Logic Block)
Center Tap
Alphanumeric
Bit
3. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.
Address
Debug
Admittance
Dual in - line package
4. The unit of electrical current
Capacitance
Ampere
Analog
CMOS
5. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic
Battery
Comparator
Combinational logic
Boundary scan
6. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor
Bode Plot
CMOS
AND
Amplitude
7. A series of bits describing a final design that is sent to the target device during programming
Debug
Aliasing
Cache memory
Bitstream
8. Describes a number system with a base of ten
Decimal
AND gate
Dependency notation
Capacity
9. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Counter
Digital linear tape
Demultiplexer
Acceptor
10. A circuit with a complete current path
Digital linear tape
Closed circuit
Compiler
Adjacency
11. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Delta Modulation
Baseline
bed- of- nails
Charge
12. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
Current sinking
BIOS
Bus interface unit
CMOS Complementary Metal Oxide Semiconductor
13. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Base
Charge- coupled device
Control Unit
Debug
14. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative
CPLD
Boolean addition
Aliasing
Charge
15. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Augend
Capacity
ALU
Bidirectional shift Register
16. American Standard Code for Information Interchange; the most widely used alphanumeric code.
Data Selector
BJT
ASCII
Branch Current
17. A type of IC package whose leads must pass through holes to the other side of a PC board
Atomic number
Average value
Array
Dual in - line package
18. A type of counter in which each stage is clocked from the output of the preceding stage.
Asynchronous counter
Don't Care...
Charge
Circuit Breaker
19. The maximum value of a voltage or current
Controller
Base address
Battery
Amplitude
20. 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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21. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Attenuation
Aliasing
Dynamic Memory
Demultiplexer
22. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Capacitance Reactance
Adjacency
Collector
Comparator
23. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Bipolar
Attenuation
CMOS
Bit time
24. An array of AND gates consisting of a matrix of programmable interconnection
TTL
Base
AND array
Access time
25. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function
Boolean multiplication
Dividend
Commutative Law
Circuit
26. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device
Aliasing
Compiler
Carry propagation
Bitstream
27. One of the three regions in a bipolar junction transistor
Demultiplexer
Base
Compiler
Data bus
28. The process of rippling an input carry to become the output carry in a full- adder when either or both of the input bits are 1's and the input carry is a 1
Bus interface unit
CLB (Configurable Logic Block)
Carry propagation
Circuit
29. A class of integrated logic circuits that is implemented with a type of field effect transistor
Charge
CMOS Complementary Metal Oxide Semiconductor
Angular Velocity
Diode
30. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
Band- pass filter
Bit
AND array
Base address
31. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
bed- of- nails
Concurrency
Decoder
DRAM
32. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Aliasing
Angular Velocity
DSP
Code
33. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Amplitude
AND
Boolean algebra
Capacitor
34. A device used to convert an analog signal to a sequence of digital codes
Center Tap
Boolean addition
Analog- to- digital converter(ADC)
Atom
35. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.
Concurrency
Combinational logic
Aliasing
Bleeder Current
36. The action of a circuit in which it accepts current into its output from a load
Carry propagation
Bidirectional shift Register
Current sinking
Adder
37. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor
Capacity
Bleeder Current
Cross - assembler
Carry propagation
38. A bridge circuit that is in the balanced state as indicated by 0 V across the output.
Atomic number
ANSI
Balanced Bridge
Admittance
39. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
ABEL(Advance Boolean Expression Language)
Decode
Decade
Addend
40. Having two directions. the stored data can be shifted right or left
Bistable
Bidirectional shift Register
Bleeder Current
Carry
41. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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42. In Boolean algebra - the AND operation
Atom
Adder
Boolean multiplication
DIMM
43. Having two stable states. Flip- flops and latches are bistable multivibrators.
Duty cycle
Dividend
Bistable
DIMM
44. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
Amplitude
Boolean expression
Asynchronous counter
Data
45. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product
Average value
Assembler
Debug
Distributive Law
46. The mathematics of logic circuits
Bistable
Adder
Boolean algebra
Complement
47. An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.
CMOS
Controller
Bitstream
Alphanumeric
48. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Binary
Band- pass filter
Address
D Flip-Flop
49. The ratio of pulse width to period expressed as a percentage
Binary coded decimal
Ammeter
Duty cycle
Adjacency
50. A semiconductor device that conducts current in only one direction
D Flip-Flop
Diode
Augend
Data