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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 mathematics of logic circuits
Boolean algebra
Bipolar
Dependency notation
DSP
2. The current left after the total load current is subtracted from the total current into the circuit
Bleeder Current
Bit
BJT
Data Selector
3. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Duty cycle
Address Bus
Cache memory
Boolean algebra
4. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Band- stop filter
ABEL(Advance Boolean Expression Language)
Center Tap
AND
5. 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
BJT
Ampere- hour(Ah) rating
DIMM
Band- pass filter
6. Describes a number system with a base of ten
Decimal
Charge- coupled device
Bus arbitration
Dual in - line package
7. The time from the application of a valid memory address to the appearance of valid output data
Bit time
Access time
Combinational logic
ALU
8. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Circuit Breaker
Circuit
Decode
Vx=(Vs * Rx) /RT
9. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Capacity
Bistable
Dynamic Memory
Bus arbitration
10. A software compiler language for SPLD programming; a type of hardware description language (HDL)
Vx=(Vs * Rx) /RT
Data Sheet
ABEL(Advance Boolean Expression Language)
Bitstream
11. A class of integrated logic circuits that is implemented with a type of field effect transistor
Assembler
CMOS Complementary Metal Oxide Semiconductor
Data bus
TTL
12. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
Cache memory
Carry
CPLD
Demultiplexer
13. 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
Don't Care...
Bus arbitration
AWG
Carry propagation
14. A connection at the midpoint of a winding in a transformer
Closed circuit
Center Tap
Boundary scan
BIOS
15. 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.
Data Selector
CLB (Configurable Logic Block)
CMOS Complementary Metal Oxide Semiconductor
Boolean expression
16. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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17. Information in numeric - alphabetic - or other form.
AWG
Buffer
Data
Address Bus
18. Having two stable states. Flip- flops and latches are bistable multivibrators.
bed- of- nails
Bistable
Clock
Ampere
19. Burst extended data output dynamic random- access memory
Carry
BEDO DRAM
Capacitance Reactance
Capacitor
20. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter
Bleeder Current
Cascade
Analog
AWG
21. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Address Bus
Apparent power
Circular Mil (CM)
Bitstream
22. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Data
Analog- to- digital converter(ADC)
AND array
Capacitor
23. The actual current in a branch
Branch Current
D Flip-Flop
Carry propagation
Boolean multiplication
24. A digital circuit device that converts coded information into another (familiar) or noncoded form
Component
Adjacency
DIMM
Decoder
25. Digital Signal Processor; a special type of microprocessor that processes data in real time
Collector
Cache memory
DSP
Bus arbitration
26. A resettable protective device used for interrupting execessive current in an electric circuit
Circuit Breaker
Bus contention
Augend
ALU
27. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Dependency notation
CPLD
Battery
CMOS Complementary Metal Oxide Semiconductor
28. Consisting of numerals - letters - and other characters
Carry generation
Attenuation
Boolean addition
Alphanumeric
29. One current path in a parallel circuit; a current path that connects two nodes
Analog- to- digital (A/D) conversion
Boolean multiplication
Bus interface unit
Branch
30. One of the three regions in a bipolar junction transistor
Addend
Capacitance
Base
Demultiplexer
31. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.
DIMM
Array
Average value
Choke
32. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte
Bistable
Address
Complement
Data
33. 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
Cascade
CMOS
Clock
Band- pass filter
34. The ability of a capacitor to store electrical charge.
Design flow
Central processing unit
DIMM
Capacitance
35. The action of a circuit in which it accepts current into its output from a load
Clear
Autotransformer
Capacitance
Current sinking
36. Sum of all the voltage drops in series equals to the source voltage
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37. A set of conductive paths hat connects the CPU to other parts of the computer to coordinate its operations and to communicate with external devices
Control Bus
Amplitude
Decoder
Battery
38. The graph of a filter's frequency response showing the change in the output voltage to input voltage ratio expressed in dB as a function of frequency for a constant input voltage
Associative law
Bode Plot
Address
CLB (Configurable Logic Block)
39. Characterized by ten states or values
Decade
Associative law
Kirchoff's Voltage Law
Adder
40. An electrical instrument used to measure current
Compiler
Ammeter
Data bus
TTL
41. The maximum value of a voltage or current
Data
Dividend
Addend
Amplitude
42. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Choke
Analog- to- digital converter(ADC)
DMA
DIMM
43. American Standard Code for Information Interchange; the most widely used alphanumeric code.
DSP
Decade Counter
Ammeter
ASCII
44. A bidirectional set of conductive paths on which data or instruction codes are transferred into a microprocessor or on which the result of an operation is sent out from the microprocessor
Data bus
DIMM
Capacitor
Alphanumeric
45. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Bus arbitration
Address Bus
Collector
Decade
46. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Admittance
Decade
Kirchoff's Current Law(KCL)
AWG
47. 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.
Capacity
Complement
D Flip-Flop
Circuit
48. A type of magnetic tape format
Digital linear tape
Baseline
Bandwidth
Capacity
49. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
D Flip-Flop
Bus contention
Bleeder Current
Array
50. 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
Ampere- hour(Ah) rating
Byte
TTL
Associative law