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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 nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.
DCE
Analog
Current sinking
Design flow
2. Digital audio tape; a type of magnetic tape format
bed- of- nails
D Flip-Flop
DAT
Carry generation
3. Data Communications equipment
AND
DCE
Apparent power
AND gate
4. The mathematics of logic circuits
Code
Boolean algebra
Battery
Bleeder Current
5. A software compiler language for SPLD programming; a type of hardware description language (HDL)
Bus arbitration
Dependency notation
Decade Counter
ABEL(Advance Boolean Expression Language)
6. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
Astable
Code
CLB (Configurable Logic Block)
Bit time
7. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
ABEL(Advance Boolean Expression Language)
Bus contention
Charge
Apparent power
8. The process of converting an analog signal to digital form
Analog- to- digital (A/D) conversion
Decode
AND gate
Counter
9. 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
Vx=(Vs * Rx) /RT
Access time
Data Sheet
Ampere- hour(Ah) rating
10. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.
Bit
Ampere
Debug
Decimal
11. 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
Apparent power
Bus contention
Cross - assembler
12. 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
Kirchoff's Voltage Law
Capacitor
Bode Plot
Bipolar
13. The time from the application of a valid memory address to the appearance of valid output data
Access time
Battery
ANSI
AND array
14. A unit of the cross - sectional area of a wire.
Concurrency
Alphanumeric
Circuit
Circular Mil (CM)
15. The actual current in a branch
Bistable
AWG
Commutative Law
Branch Current
16. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Bus interface unit
Angular Velocity
Balanced Load
Data Sheet
17. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Battery
Cache memory
Decode
Admittance
18. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Binary coded decimal
Decade Counter
Decrement
Capacity
19. 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
Average value
ALU
Decade
BJT
20. 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
Collector
Boolean multiplication
Addend
Carry propagation
21. Altera HDL; a nonstandard HDL
Complement
Ampere- hour(Ah) rating
Boolean addition
AHDL
22. 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.
Charge
Capacitance Reactance
CLB (Configurable Logic Block)
Circuit
23. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Bandwidth
Dependency notation
Charge- coupled device
CPLD
24. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Boundary scan
Data Selector
Cache memory
DCE
25. 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)
Complement
Binary
Dynamic Memory
26. 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
Data Sheet
Clock
Analog- to- digital converter(ADC)
27. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
Demultiplexer
Address Bus
BIOS
Autotransformer
28. The ratio of pulse width to period expressed as a percentage
ALU
Carry propagation
Antifuse
Duty cycle
29. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Closed circuit
Admittance
Bit
Decade Counter
30. A program that converts English- like mnemonics into machine code
Data bus
Balanced Load
Branch
Assembler
31. 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
Assembly language
Data bus
Buffer
Binary coded decimal
32. The application of a dc voltage to an electronic device to produce a desired mode of operation
Branch
Complement
Bias
Decimal
33. A receiving device on a bus
Analog
Carry
Acceptor
Balanced Bridge
34. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor
CMOS
Binary coded decimal
Bandwidth
AND
35. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Demultiplexer
Decode
D Flip-Flop
BJT
36. A series of bits describing a final design that is sent to the target device during programming
Bitstream
Augend
Decimal
Control Unit
37. The maximum value of a voltage or current
Average value
DAT
AWG
Amplitude
38. A programming language that uses English like words and has a one- to- one correspondence to machine language
Data bus
Decade
DMA
Assembly language
39. One current path in a parallel circuit; a current path that connects two nodes
Boolean expression
BIOS
Branch
Band- pass filter
40. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Atom
Decade
Charge- coupled device
Capacitor
41. A class of integrated logic circuits that is implemented with a type of field effect transistor
Binary coded decimal
CMOS Complementary Metal Oxide Semiconductor
Boundary scan
Circuit
42. A device used to convert an analog signal to a sequence of digital codes
Analog- to- digital converter(ADC)
Code
Bleeder Current
Adjacency
43. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
Amplitude
Kirchoff's Current Law(KCL)
Boundary scan
Debug
44. 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.
Data Sheet
DTE
Architecture
Controller
45. 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.
Bistable
Bias
Decode
Control Unit
46. Characterized by ten states or values
Amplitude
Decade
Array
Bitstream
47. 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.
Addend
Carry
Bandwidth
Kirchoff's Current Law(KCL)
48. Digital Signal Processor; a special type of microprocessor that processes data in real time
DSP
Diode
Circular Mil (CM)
Compiler
49. American National Standards Institute
Admittance
ANSI
TTL
Antifuse
50. A group of eight bits
Digital linear tape
Boolean addition
Byte
Alphanumeric