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Test your basic knowledge |
Digital Fundamentals
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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 electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Capacitor
Circuit
Design flow
Ampere- hour(Ah) rating
2. 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
TTL
Clock
CPLD
ALU
3. In a PLD - a matrix formed by rows of product- term lines columns of input lines with a programmable cell at each junctions. In VHDL - an array is an ordered set of individual items called elements with a single identifier name.
Array
Kirchoff's Voltage Law
ALU
Delta Modulation
4. The process of converting an analog signal to digital form
AHDL
Capacity
Data bus
Analog- to- digital (A/D) conversion
5. The current left after the total load current is subtracted from the total current into the circuit
CPLD
Bleeder Current
ASCII
Adjacency
6. 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.
Data Sheet
Bit
Controller
Binary coded decimal
7. Having two stable states. Flip- flops and latches are bistable multivibrators.
Collector
Demultiplexer
Commutative Law
Bistable
8. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product
Distributive Law
Decoder
Autotransformer
Data bus
9. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Collector
Boolean algebra
Address
Bistable
10. The action of a circuit in which it accepts current into its output from a load
Current sinking
Delta Modulation
Boundary scan
Cascade
11. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Demultiplexer
Control Bus
Carry generation
Cache memory
12. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Bus interface unit
Baseline
Angular Velocity
Address Bus
13. 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.
Decade Counter
Boundary scan
Circuit
CMOS Complementary Metal Oxide Semiconductor
14. 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.
Boolean addition
Digital linear tape
Amplitude
Control Unit
15. In addition - the number that is added to another number called the augend
BJT
Addend
Data bus
DRAM
16. A software compiler language for SPLD programming; a type of hardware description language (HDL)
Addend
ABEL(Advance Boolean Expression Language)
TTL
Bit
17. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions
Central processing unit
Data bus
Don't Care...
Augend
18. Having two opposites charge carriers within the transistor structure
Vx=(Vs * Rx) /RT
Bipolar
DAT
Bleeder Current
19. A document that specifies parameter values and operating conditions for an integrated circuits or other device
Kirchoff's Voltage Law
Branch
Compiler
Data Sheet
20. A set of interconnections that interface one or more devices based on a standardized specification
Bus
Bandwidth
Address Bus
Decoder
21. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
D Flip-Flop
Bit
Data
DMA
22. Digital audio tape; a type of magnetic tape format
Dynamic Memory
Binary
Bus interface unit
DAT
23. 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
Carry propagation
AND array
Analog
ALU
24. American wire gauge; a standardization based on wire diameter
Address
Analog- to- digital converter(ADC)
AWG
Ammeter
25. A logic gate that produces a High output only when all of the inputs are HIGH
Norton's Theorem
Average value
Bus arbitration
AND gate
26. A device used to convert an analog signal to a sequence of digital codes
Bitstream
Analog- to- digital converter(ADC)
Clock
Bus interface unit
27. A unit of the cross - sectional area of a wire.
Ampere
Boolean expression
Circular Mil (CM)
Baseline
28. A group of eight bits
Balanced Bridge
Concurrency
Byte
Boolean algebra
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.
Complement
Bandwidth
ABEL(Advance Boolean Expression Language)
D Flip-Flop
30. 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
Amplitude
Duty cycle
Dependency notation
Bode Plot
31. Burst extended data output dynamic random- access memory
Alphanumeric
Acceptor
BEDO DRAM
Band- stop filter
32. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points
bed- of- nails
DIMM
Dependency notation
Demultiplexer
33. A receiving device on a bus
Acceptor
Architecture
DMA
Circuit Breaker
34. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's
Clear
Center Tap
DCE
Analog- to- digital (A/D) conversion
35. A logic circuit used to add two binary numbers
Adder
CPLD
ALU
Bus interface unit
36. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously
Apparent power
Concurrency
Norton's Theorem
ALU
37. A digital counter having ten states
Choke
Cascade
Boolean algebra
Decade Counter
38. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Circular Mil (CM)
CMOS Complementary Metal Oxide Semiconductor
Comparator
ABEL(Advance Boolean Expression Language)
39. Consisting of numerals - letters - and other characters
Concurrency
Bias
Alphanumeric
Circuit
40. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Binary coded decimal
Controller
Band- pass filter
Analog- to- digital (A/D) conversion
41. American National Standards Institute
Bipolar
ANSI
Don't Care...
Diode
42. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
ALU
Kirchoff's Voltage Law
CMOS Complementary Metal Oxide Semiconductor
DRAM
43. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Kirchoff's Current Law(KCL)
Boolean expression
Bus contention
Bistable
44. The digit generated when the sum of two binary digits exceeds 1
Aliasing
Decode
Carry
Decade
45. An electrical instrument used to measure current
Average value
Closed circuit
Ammeter
Decode
46. In a division operation the quantity that is being divided
Cache memory
Dividend
Capacitor
Clear
47. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Bus interface unit
Dynamic Memory
Array
Apparent power
48. A circuit that prevents loading of an input or output
Decimal
AWG
Atom
Buffer
49. 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
Boolean multiplication
Address Bus
Decode
50. 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.
Bit time
Atomic number
Data Selector
DTE
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