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Test your basic knowledge |
Digital Fundamentals
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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.
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 method of analog- to- digital conversion using a 1- bit quantization process
Capacitance Reactance
AND
Delta Modulation
Decade
2. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Complement
CMOS Complementary Metal Oxide Semiconductor
Apparent power
Angular Velocity
3. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Capacity
Bus contention
Commutative Law
Access time
4. The actual current in a branch
Capacitance
D Flip-Flop
Assembler
Branch Current
5. American Standard Code for Information Interchange; the most widely used alphanumeric code.
Carry generation
ASCII
Data Sheet
Address
6. Digital audio tape; a type of magnetic tape format
Addend
DAT
Data Sheet
Boolean algebra
7. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
AWG
Band- pass filter
Architecture
Bus interface unit
8. The process of producing an output carry in full- adder when both input bits are 1s.
Carry generation
Analog- to- digital converter(ADC)
Branch Current
Dynamic Memory
9. Having two directions. the stored data can be shifted right or left
Capacitance
Bus
Bidirectional shift Register
DAT
10. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits
Asynchronous counter
Decimal
ALU
Binary
11. A type of inductor used to block or choke off high frequencies
Data bus
Choke
Adjacency
Average value
12. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points
Circular Mil (CM)
Closed circuit
Norton's Theorem
bed- of- nails
13. The unit of electrical current
Thevenin Equivalent Circuit
Ampere
DTE
DRAM
14. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Bias
Acceptor
Compiler
TTL
15. A programming language that uses English like words and has a one- to- one correspondence to machine language
Bit
Boolean addition
BEDO DRAM
Assembly language
16. 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.
Current sinking
Aliasing
Data Selector
CPLD
17. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit
Assembler
Vx=(Vs * Rx) /RT
Bus interface unit
Byte
18. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Assembler
Dynamic Memory
Access time
Combinational logic
19. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Dependency notation
Control Unit
Boolean algebra
Byte
20. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
Vx=(Vs * Rx) /RT
DTE
BIOS
Center Tap
21. A circuit with a complete current path
Analog- to- digital (A/D) conversion
Address Bus
Base address
Closed circuit
22. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
Kirchoff's Voltage Law
Ampere
Compiler
Astable
23. Sum of all the voltage drops in series equals to the source voltage
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24. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
CMOS
Battery
Band- stop filter
Dividend
25. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program
Binary coded decimal
Astable
Antifuse
CLB (Configurable Logic Block)
26. A combined coder and decoder
Demultiplexer
Code
Aliasing
Collector
27. 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 Selector
Charge
Address
Architecture
28. A unit of the cross - sectional area of a wire.
Circular Mil (CM)
Bandwidth
Access time
DIMM
29. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Circuit
D Flip-Flop
Demultiplexer
Bias
30. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte
BJT
Alphanumeric
Address
DRAM
31. A series of bits describing a final design that is sent to the target device during programming
Bitstream
Base address
Access time
Carry propagation
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.
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33. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Bit time
DTE
ANSI
Thevenin Equivalent Circuit
34. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Clock
Assembler
Counter
Central processing unit
35. Digital Signal Processor; a special type of microprocessor that processes data in real time
Branch
Bus arbitration
DSP
Bode Plot
36. A type of magnetic tape format
Code
Digital linear tape
AND
Attenuation
37. A program that converts English- like mnemonics into machine code
Center Tap
Angular Velocity
Assembler
Data
38. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
Current sinking
CPLD
Compiler
Data Selector
39. A circuit that prevents loading of an input or output
Clock
Buffer
Boolean addition
Cascade
40. A semiconductor device that conducts current in only one direction
Digital linear tape
Diode
Boundary scan
Acceptor
41. A bridge circuit that is in the balanced state as indicated by 0 V across the output.
Assembly language
Diode
Code
Balanced Bridge
42. Data Terminal equipment
DTE
Attenuation
Charge- coupled device
ANSI
43. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
DRAM
AND array
Central processing unit
Angular Velocity
44. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
DIMM
Concurrency
Balanced Bridge
Address Bus
45. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously
CMOS
Decrement
Concurrency
Diode
46. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs
AHDL
Component
Boundary scan
Band- pass filter
47. 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
Data bus
Current sinking
Bus
Atom
48. 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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49. American wire gauge; a standardization based on wire diameter
Branch
Cross - assembler
AWG
Data Selector
50. 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.
Base
Adjacency
Array
Duty cycle
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