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Test your basic knowledge |
Digital Fundamentals
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Decade Counter
Base
DMA
Compiler
2. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Binary coded decimal
Dual in - line package
Kirchoff's Voltage Law
Cascade
3. The process that prevents two sources from using a bus at the same time
Capacitance Reactance
Complement
Bus arbitration
Delta Modulation
4. An expression of variables and operators used to express the operation of a logic circuit
Boolean expression
Balanced Bridge
Component
Closed circuit
5. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Cache memory
Battery
Alphanumeric
CPLD
6. A software compiler language for SPLD programming; a type of hardware description language (HDL)
Digital linear tape
ABEL(Advance Boolean Expression Language)
ANSI
Bit
7. The process or sequence of operations carried out to program a target device
Boolean algebra
Design flow
AND
Alphanumeric
8. Transistor-Transistor Logic and is implemented with bipolar junction transistors
ANSI
CMOS
Carry generation
TTL
9. 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
Analog- to- digital converter(ADC)
D Flip-Flop
Clear
Bode Plot
10. Sum of all the voltage drops in series equals to the source voltage
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11. 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.
AHDL
Decoder
Bleeder Current
Array
12. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor
Digital linear tape
Bit time
Branch
Cross - assembler
13. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Kirchoff's Voltage Law
Admittance
Decoder
Bistable
14. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Dynamic Memory
Combinational logic
Boolean addition
Design flow
15. 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
Base
Control Bus
Demultiplexer
Cascade
16. The digit generated when the sum of two binary digits exceeds 1
Carry
Combinational logic
Data Selector
Complement
17. Describes a number system with a base of ten
AHDL
TTL
Kirchoff's Current Law(KCL)
Decimal
18. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product
Bit
Boolean algebra
Distributive Law
Boundary scan
19. A logic circuit used to add two binary numbers
Code
Adder
Battery
Capacity
20. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function
Choke
D Flip-Flop
Circuit
BJT
21. A logic gate that produces a High output only when all of the inputs are HIGH
Bus interface unit
Controller
Center Tap
AND gate
22. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacitance Reactance
BIOS
Decade Counter
Branch Current
23. One current path in a parallel circuit; a current path that connects two nodes
Amplitude
Antifuse
Branch
Data bus
24. An electrical instrument used to measure current
Access time
Apparent power
Ammeter
Bitstream
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
ANSI
AHDL
Adder
26. A digital counter having ten states
Decade Counter
Charge- coupled device
Delta Modulation
Comparator
27. Having two directions. the stored data can be shifted right or left
Cross - assembler
Byte
Analog- to- digital converter(ADC)
Bidirectional shift Register
28. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
DIMM
ABEL(Advance Boolean Expression Language)
Code
Angular Velocity
29. 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.
Bus arbitration
Duty cycle
Circuit
Boolean multiplication
30. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Bode Plot
CMOS
Thevenin Equivalent Circuit
DRAM
31. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously
Band- stop filter
Kirchoff's Current Law(KCL)
Concurrency
Design flow
32. The application of a dc voltage to an electronic device to produce a desired mode of operation
Circuit
Capacitance
Decimal
Bias
33. 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.
Branch Current
Acceptor
Capacity
Control Unit
34. A resettable protective device used for interrupting execessive current in an electric circuit
Duty cycle
DMA
ABEL(Advance Boolean Expression Language)
Circuit Breaker
35. American National Standards Institute
Dual in - line package
ANSI
Counter
D Flip-Flop
36. A receiving device on a bus
Circular Mil (CM)
Bit
Acceptor
Branch
37. Characterized by ten states or values
Carry propagation
Ammeter
CPLD
Decade
38. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
Boundary scan
DRAM
ANSI
Address Bus
39. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
AND gate
Alphanumeric
Counter
BJT
40. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Cache memory
Bus arbitration
CLB (Configurable Logic Block)
Astable
41. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Digital linear tape
Atomic number
CMOS
Dependency notation
42. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Charge- coupled device
Binary
Atomic number
Associative law
43. 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
Data Sheet
BIOS
BJT
Control Unit
44. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
AND gate
Base
Amplitude
Assembly language
45. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.
Duty cycle
Analog
Base address
Decode
46. A group of eight bits
Byte
CMOS Complementary Metal Oxide Semiconductor
Vx=(Vs * Rx) /RT
Bus interface unit
47. The maximum value of a voltage or current
Norton's Theorem
Amplitude
ANSI
Dividend
48. Altera HDL; a nonstandard HDL
AHDL
Kirchoff's Current Law(KCL)
Binary
Component
49. A series of bits describing a final design that is sent to the target device during programming
Capacitor
Bitstream
Circuit
Circuit
50. A binary digit - which can be either 1 or 0
Adjacency
Bit
Combinational logic
Kirchoff's Voltage Law
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