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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 total number of data units(bits - nibbles - bytes - words) that a memory can store.
Bandwidth
bed- of- nails
Capacity
Boundary scan
2. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Charge
Bias
Binary coded decimal
Bistable
3. American wire gauge; a standardization based on wire diameter
AWG
Cross - assembler
Band- pass filter
Bus
4. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Cross - assembler
Bus contention
Debug
Capacitor
5. 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
Closed circuit
Band- stop filter
Attenuation
6. To decrease the binary state of a counter by one
Acceptor
Boundary scan
Bandwidth
Decrement
7. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
Current sinking
Astable
Address Bus
CMOS
8. 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
Balanced Bridge
Bleeder Current
ALU
9. The beginning address of a segment of memory
Assembly language
Band- stop filter
Base address
DIMM
10. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
CPLD
Analog- to- digital converter(ADC)
Atom
Data Selector
11. Having two directions. the stored data can be shifted right or left
ABEL(Advance Boolean Expression Language)
Bidirectional shift Register
Boolean multiplication
Bias
12. A type of magnetic tape format
Duty cycle
Digital linear tape
Band- stop filter
Norton's Theorem
13. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit
Demultiplexer
Antifuse
Vx=(Vs * Rx) /RT
Astable
14. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Binary coded decimal
Average value
AND
Circular Mil (CM)
15. A type of counter in which each stage is clocked from the output of the preceding stage.
Asynchronous counter
Binary
Bus arbitration
Component
16. A device used to convert an analog signal to a sequence of digital codes
Analog- to- digital converter(ADC)
Cache memory
Angular Velocity
Compiler
17. Consisting of numerals - letters - and other characters
Decode
Alphanumeric
Data bus
Autotransformer
18. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative
Charge
Bus contention
Clear
Bias
19. In Boolean algebra - the AND operation
Boolean multiplication
Antifuse
Acceptor
Attenuation
20. A circuit that prevents loading of an input or output
Decade Counter
Buffer
Thevenin Equivalent Circuit
Dual in - line package
21. The digit generated when the sum of two binary digits exceeds 1
Collector
Base
CMOS Complementary Metal Oxide Semiconductor
Carry
22. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Decode
Counter
Demultiplexer
Capacitor
23. 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.
Dual in - line package
Attenuation
Adder
Bode Plot
24. 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
AWG
Center Tap
Capacitance
Complement
25. A receiving device on a bus
Dividend
Alphanumeric
AHDL
Acceptor
26. A group of eight bits
Clock
Assembler
Byte
Delta Modulation
27. 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
Component
Decade
Ampere- hour(Ah) rating
Dual in - line package
28. A circuit with a complete current path
Design flow
Closed circuit
CLB (Configurable Logic Block)
Carry generation
29. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Commutative Law
Thevenin Equivalent Circuit
Central processing unit
Concurrency
30. The time from the application of a valid memory address to the appearance of valid output data
Access time
Addend
Bitstream
Combinational logic
31. The number of protons in a nucleus
Decimal
Carry generation
Atomic number
bed- of- nails
32. 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.
33. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Array
Capacitance Reactance
Concurrency
Data Sheet
34. An array of AND gates consisting of a matrix of programmable interconnection
Access time
Bias
AND array
Boolean multiplication
35. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs
ANSI
Collector
Component
Ampere
36. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
Average value
Closed circuit
Bus
Band- stop filter
37. A combined coder and decoder
Data Sheet
Code
Array
Design flow
38. A transformer in which the primary and secondary are in a single winding
Autotransformer
Decade Counter
Asynchronous counter
Architecture
39. A semiconductor device that conducts current in only one direction
CPLD
CLB (Configurable Logic Block)
DIMM
Diode
40. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device
Compiler
Decode
Comparator
Don't Care...
41. A digital circuit device that converts coded information into another (familiar) or noncoded form
Decoder
Dividend
Data bus
Binary coded decimal
42. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Analog- to- digital converter(ADC)
Thevenin Equivalent Circuit
Dynamic Memory
Decimal
43. Information in numeric - alphabetic - or other form.
Carry
D Flip-Flop
Data
Kirchoff's Current Law(KCL)
44. Digital audio tape; a type of magnetic tape format
Address
Capacity
DAT
Byte
45. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Atom
Analog- to- digital (A/D) conversion
Counter
Admittance
46. An expression of variables and operators used to express the operation of a logic circuit
Adjacency
Branch
Boolean expression
Kirchoff's Current Law(KCL)
47. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Balanced Load
Data Selector
Circular Mil (CM)
Baseline
48. The action of a circuit in which it accepts current into its output from a load
Branch
Current sinking
DMA
Data Sheet
49. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
D Flip-Flop
AWG
Cache memory
Cascade
50. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic
BJT
Data Selector
Combinational logic
CLB (Configurable Logic Block)