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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 two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Bias
Autotransformer
Thevenin Equivalent Circuit
CLB (Configurable Logic Block)
2. A combined coder and decoder
Data
Code
Decrement
ALU
3. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.
Analog
Data
Dividend
DIMM
4. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
Bipolar
Dividend
Alphanumeric
Band- stop filter
5. A document that specifies parameter values and operating conditions for an integrated circuits or other device
Data Sheet
Base address
BJT
Address Bus
6. In Boolean algebra - the AND operation
AND gate
Boolean multiplication
ASCII
Bus contention
7. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Concurrency
Address Bus
Branch Current
Antifuse
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.
Astable
Architecture
Circuit
Acceptor
9. A semiconductor device that conducts current in only one direction
D Flip-Flop
Demultiplexer
Diode
Bus
10. Characteristic of cells in a Karnaugh map in which there is a single- variable change from one cell to another cell next to it on any of its four sides
Design flow
Adjacency
Autotransformer
Carry generation
11. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Apparent power
Ampere
CLB (Configurable Logic Block)
Ampere- hour(Ah) rating
12. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Apparent power
Compiler
Boolean algebra
Comparator
13. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Bit time
Addend
Alphanumeric
Collector
14. The process or sequence of operations carried out to program a target device
Band- stop filter
Architecture
Analog- to- digital converter(ADC)
Design flow
15. A digital counter having ten states
Decade Counter
BEDO DRAM
Charge
CMOS
16. The digit generated when the sum of two binary digits exceeds 1
CMOS Complementary Metal Oxide Semiconductor
Control Bus
Carry
BJT
17. A type of counter in which each stage is clocked from the output of the preceding stage.
Data Selector
Concurrency
Asynchronous counter
Decade Counter
18. The beginning address of a segment of memory
DTE
Base address
Counter
Decode
19. In a division operation the quantity that is being divided
Dual in - line package
BIOS
Bipolar
Dividend
20. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Digital linear tape
BEDO DRAM
Angular Velocity
Analog- to- digital (A/D) conversion
21. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Decoder
Capacitance Reactance
Clock
Current sinking
22. Digital Signal Processor; a special type of microprocessor that processes data in real time
BJT
Baseline
Associative law
DSP
23. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Battery
D Flip-Flop
Counter
Control Bus
24. Data Communications equipment
DCE
Control Bus
Don't Care...
Duty cycle
25. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
CMOS
Astable
Component
Base
26. A condition where all the load currents are equal and the neutral current is zero
AND array
Analog- to- digital converter(ADC)
Balanced Load
Bus
27. 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
Angular Velocity
Cascade
Decade Counter
Circuit Breaker
28. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit
Decade
Capacitance
Data
Vx=(Vs * Rx) /RT
29. 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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30. A software compiler language for SPLD programming; a type of hardware description language (HDL)
Aliasing
Byte
ABEL(Advance Boolean Expression Language)
Clear
31. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Bus contention
DTE
Analog- to- digital converter(ADC)
Assembly language
32. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Attenuation
BIOS
Cache memory
ASCII
33. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.
Binary coded decimal
Bandwidth
ALU
Decoder
34. Altera HDL; a nonstandard HDL
CPLD
Boundary scan
AHDL
Bode Plot
35. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
CLB (Configurable Logic Block)
Associative law
Compiler
DTE
36. Having two directions. the stored data can be shifted right or left
Cascade
Admittance
Bidirectional shift Register
Compiler
37. A type of inductor used to block or choke off high frequencies
Boolean multiplication
Choke
Circular Mil (CM)
D Flip-Flop
38. Data Terminal equipment
Cache memory
BEDO DRAM
DTE
D Flip-Flop
39. In addition - the number to which the addend is added
Augend
Circuit
Analog
Angular Velocity
40. American wire gauge; a standardization based on wire diameter
Data
AWG
Delta Modulation
DRAM
41. A method of analog- to- digital conversion using a 1- bit quantization process
Analog- to- digital (A/D) conversion
Debug
Delta Modulation
Boolean multiplication
42. 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
Asynchronous counter
BJT
Code
Capacitance Reactance
43. Characterized by ten states or values
Autotransformer
Controller
Control Bus
Decade
44. A transformer in which the primary and secondary are in a single winding
Autotransformer
Boolean multiplication
Assembly language
AND array
45. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Bit time
Decode
DTE
DCE
46. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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47. A set of interconnections that interface one or more devices based on a standardized specification
Bus
Addend
Amplitude
Adjacency
48. 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
Bidirectional shift Register
Boolean algebra
Counter
49. Having two stable states. Flip- flops and latches are bistable multivibrators.
AWG
Binary
Bistable
ASCII
50. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Carry generation
Battery
DMA
Atom