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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
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.
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. An array of AND gates consisting of a matrix of programmable interconnection
Charge
Bus interface unit
Bode Plot
AND array
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
Combinational logic
Central processing unit
Ampere- hour(Ah) rating
Asynchronous counter
3. Dual in - line memory module
Distributive Law
D Flip-Flop
Associative law
DIMM
4. 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
Vx=(Vs * Rx) /RT
Data Selector
ASCII
Clock
5. Information in numeric - alphabetic - or other form.
Data
Addend
Capacitance
Angular Velocity
6. The process or sequence of operations carried out to program a target device
Boundary scan
Complement
Design flow
Distributive Law
7. 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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8. A combined coder and decoder
Associative law
AHDL
Bus
Code
9. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Boundary scan
Bipolar
Access time
Thevenin Equivalent Circuit
10. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Addend
Bus interface unit
Dependency notation
D Flip-Flop
11. A program that converts English- like mnemonics into machine code
BIOS
Dividend
Assembler
DMA
12. The mathematics of logic circuits
ANSI
Dependency notation
Boolean algebra
Boundary scan
13. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte
Capacitance
CPLD
Address
Autotransformer
14. A logic gate that produces a High output only when all of the inputs are HIGH
Bandwidth
AND gate
Clock
Data Selector
15. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Vx=(Vs * Rx) /RT
Adjacency
Analog- to- digital converter(ADC)
Battery
16. The number of protons in a nucleus
Data bus
Atomic number
Design flow
Bistable
17. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Decoder
DIMM
Base
Bus contention
18. A connection at the midpoint of a winding in a transformer
Center Tap
Collector
Bode Plot
Diode
19. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
BIOS
Augend
DRAM
Analog
20. 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
Assembler
DCE
Bleeder Current
21. A logic circuit used to add two binary numbers
Adder
Carry
Boolean algebra
Augend
22. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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23. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Comparator
Controller
DIMM
Autotransformer
24. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
Angular Velocity
Cache memory
Base
CPLD
25. A series of bits describing a final design that is sent to the target device during programming
Bitstream
Associative law
Charge
Analog
26. 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.
Debug
Circuit
Concurrency
Adder
27. Data Communications equipment
Branch Current
DCE
CLB (Configurable Logic Block)
Debug
28. 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
Boolean addition
Atomic number
Complement
Address
29. 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
Analog- to- digital converter(ADC)
Balanced Load
Duty cycle
30. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Amplitude
Bus interface unit
Addend
Demultiplexer
31. Describes a number system with a base of ten
Component
DIMM
Decimal
Debug
32. In addition - the number that is added to another number called the augend
Balanced Bridge
Design flow
ABEL(Advance Boolean Expression Language)
Addend
33. A method of analog- to- digital conversion using a 1- bit quantization process
Delta Modulation
Data Sheet
Baseline
AHDL
34. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
ALU
Digital linear tape
Bidirectional shift Register
Capacitor
35. Sum of all the voltage drops in series equals to the source voltage
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36. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.
ALU
Data Sheet
Kirchoff's Voltage Law
Binary coded decimal
37. A unit of the cross - sectional area of a wire.
Astable
Circular Mil (CM)
Complement
Norton's Theorem
38. 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
DIMM
Control Bus
Ampere
Cross - assembler
39. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
Band- pass filter
Augend
Architecture
ASCII
40. One current path in a parallel circuit; a current path that connects two nodes
Decode
Branch
Assembly language
Dividend
41. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Charge- coupled device
Data Sheet
Duty cycle
Boolean addition
42. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
Boolean expression
Dynamic Memory
Circular Mil (CM)
Astable
43. 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.
Aliasing
Kirchoff's Current Law(KCL)
Decade
Astable
44. The digit generated when the sum of two binary digits exceeds 1
Boolean multiplication
ASCII
Carry
Base address
45. The time from the application of a valid memory address to the appearance of valid output data
Branch
ANSI
Kirchoff's Current Law(KCL)
Access time
46. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Base
Circuit
Component
TTL
47. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program
Acceptor
Antifuse
Binary coded decimal
DCE
48. 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
Comparator
BJT
Control Bus
Bus arbitration
49. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit
Vx=(Vs * Rx) /RT
Bitstream
Cross - assembler
Access time
50. American wire gauge; a standardization based on wire diameter
Boolean algebra
AWG
Data
Adder
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