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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 time from the application of a valid memory address to the appearance of valid output data
Atomic number
ANSI
Boolean multiplication
Access time
2. 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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3. Consisting of numerals - letters - and other characters
Average value
Base address
Alphanumeric
Binary
4. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Bus interface unit
Dynamic Memory
Circuit
Cross - assembler
5. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
Ampere- hour(Ah) rating
Balanced Load
CPLD
bed- of- nails
6. A type of IC package whose leads must pass through holes to the other side of a PC board
Combinational logic
Dual in - line package
Antifuse
Data Selector
7. 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
AWG
Amplitude
Charge
8. 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.
Dual in - line package
Bode Plot
Cascade
Circuit
9. 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.
Carry generation
ANSI
Data Selector
Alphanumeric
10. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Decrement
Central processing unit
Counter
Closed circuit
11. The maximum value of a voltage or current
Amplitude
Decode
Counter
Data Sheet
12. 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
Cascade
ASCII
ANSI
Attenuation
13. Altera HDL; a nonstandard HDL
Carry propagation
AHDL
Component
Adder
14. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Charge- coupled device
Bitstream
DMA
Band- pass filter
15. A digital circuit device that converts coded information into another (familiar) or noncoded form
Decoder
ANSI
Branch Current
Dual in - line package
16. Sum of all the voltage drops in series equals to the source voltage
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17. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative
Antifuse
Addend
Circuit
Charge
18. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacity
Branch
Decimal
Capacitance Reactance
19. One of the three regions in a bipolar junction transistor
Analog
Base
Kirchoff's Voltage Law
Debug
20. A software compiler language for SPLD programming; a type of hardware description language (HDL)
CMOS Complementary Metal Oxide Semiconductor
Diode
Kirchoff's Voltage Law
ABEL(Advance Boolean Expression Language)
21. A binary digit - which can be either 1 or 0
Analog- to- digital (A/D) conversion
Bit
Bit time
Commutative Law
22. 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.
Decode
Bias
Choke
Architecture
23. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Component
Capacitance
Thevenin Equivalent Circuit
Circuit
24. 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
Control Bus
DCE
Clock
Baseline
25. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
D Flip-Flop
Address
Capacity
Apparent power
26. A circuit with a complete current path
Closed circuit
Carry propagation
Associative law
Capacitance
27. 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
Boolean multiplication
Data bus
Astable
Analog- to- digital (A/D) conversion
28. The process or sequence of operations carried out to program a target device
Design flow
Ampere- hour(Ah) rating
Controller
Alphanumeric
29. A programming language that uses English like words and has a one- to- one correspondence to machine language
Assembly language
Base
Clock
Decrement
30. 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.
Bandwidth
Attenuation
Comparator
Component
31. 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
DRAM
Decrement
Band- stop filter
32. The process that prevents two sources from using a bus at the same time
Address Bus
Array
Compiler
Bus arbitration
33. A condition where all the load currents are equal and the neutral current is zero
Bipolar
Analog- to- digital (A/D) conversion
Cache memory
Balanced Load
34. The actual current in a branch
Binary
BEDO DRAM
Circuit Breaker
Branch Current
35. A semiconductor device that conducts current in only one direction
Decade Counter
AHDL
Diode
Amplitude
36. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Comparator
Branch
Access time
Capacitance
37. A circuit that prevents loading of an input or output
Buffer
Admittance
Band- pass filter
Data bus
38. One current path in a parallel circuit; a current path that connects two nodes
Binary coded decimal
Carry generation
TTL
Branch
39. A series of bits describing a final design that is sent to the target device during programming
Base address
Adder
Bitstream
Bleeder Current
40. The smallest particle of an element possessing the unique characteristics of that element.
Distributive Law
Atom
AHDL
Bipolar
41. 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.
Distributive Law
Aliasing
Data Selector
Decode
42. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Ampere- hour(Ah) rating
Clear
Bode Plot
Address Bus
43. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
Addend
Bus
CLB (Configurable Logic Block)
Demultiplexer
44. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Apparent power
Cache memory
Antifuse
Bidirectional shift Register
45. Digital Signal Processor; a special type of microprocessor that processes data in real time
Decade
DSP
CMOS Complementary Metal Oxide Semiconductor
Duty cycle
46. American National Standards Institute
Bus
Decrement
ANSI
Center Tap
47. In Boolean algebra - the OR operation
Boolean addition
Atom
Boolean multiplication
Binary coded decimal
48. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Address
Commutative Law
Byte
Binary coded decimal
49. The unit of electrical current
Ampere
Carry propagation
Center Tap
Atom
50. In Boolean algebra - the AND operation
Base address
Bit time
Boolean multiplication
BJT
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