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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 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
Carry propagation
Bidirectional shift Register
DAT
Capacitor
2. A document that specifies parameter values and operating conditions for an integrated circuits or other device
Data Sheet
Binary coded decimal
Binary
Norton's Theorem
3. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Architecture
Center Tap
Decode
CMOS Complementary Metal Oxide Semiconductor
4. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Bus interface unit
Cache memory
Analog
CPLD
5. 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
Boolean multiplication
Carry
BJT
Analog- to- digital (A/D) conversion
6. Having two stable states. Flip- flops and latches are bistable multivibrators.
Cache memory
CLB (Configurable Logic Block)
Ammeter
Bistable
7. A connection at the midpoint of a winding in a transformer
Amplitude
Access time
DTE
Center Tap
8. A programming language that uses English like words and has a one- to- one correspondence to machine language
Diode
Assembly language
Buffer
Current sinking
9. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Admittance
Adjacency
Band- pass filter
Aliasing
10. Having two directions. the stored data can be shifted right or left
Don't Care...
Control Unit
Bias
Bidirectional shift Register
11. In Boolean algebra - the OR operation
Boolean addition
Ammeter
Decade Counter
AHDL
12. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Debug
Capacitor
Bitstream
Assembly language
13. A combined coder and decoder
DMA
Bitstream
Code
Cross - assembler
14. Characterized by ten states or values
Complement
Center Tap
Decade
Comparator
15. A set of interconnections that interface one or more devices based on a standardized specification
Counter
Astable
Bus
Carry generation
16. 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
Battery
Complement
Alphanumeric
CLB (Configurable Logic Block)
17. The unit of electrical current
Kirchoff's Current Law(KCL)
Bus
Architecture
Ampere
18. 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.
DTE
Data bus
Attenuation
DSP
19. Data Communications equipment
DCE
Address
AND
CPLD
20. The smallest particle of an element possessing the unique characteristics of that element.
Attenuation
Dividend
Atom
Adjacency
21. The time from the application of a valid memory address to the appearance of valid output data
Vx=(Vs * Rx) /RT
Access time
Analog
Boolean algebra
22. 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.
Digital linear tape
Bleeder Current
Control Unit
Access time
23. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Atom
Capacity
Analog- to- digital converter(ADC)
Comparator
24. 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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183
25. A logic gate that produces a High output only when all of the inputs are HIGH
Decade Counter
Kirchoff's Current Law(KCL)
Battery
AND gate
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.
Digital linear tape
DMA
Code
Array
27. Digital audio tape; a type of magnetic tape format
Dividend
DAT
DCE
Capacitance Reactance
28. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's
Capacitance Reactance
Clear
Combinational logic
Branch
29. Digital Signal Processor; a special type of microprocessor that processes data in real time
DSP
Dynamic Memory
Atomic number
Baseline
30. Information in numeric - alphabetic - or other form.
Don't Care...
Data
Bit time
Band- pass filter
31. The actual current in a branch
Branch Current
bed- of- nails
Amplitude
Carry generation
32. The mathematics of logic circuits
Design flow
Balanced Load
AND array
Boolean algebra
33. The application of a dc voltage to an electronic device to produce a desired mode of operation
Capacitance Reactance
Bias
Distributive Law
Charge- coupled device
34. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
AND
Capacitance Reactance
Dynamic Memory
Vx=(Vs * Rx) /RT
35. The ability of a capacitor to store electrical charge.
DCE
Dividend
Capacitance
Amplitude
36. A series of bits describing a final design that is sent to the target device during programming
Bitstream
Average value
Decade
Bit time
37. A logic circuit used to add two binary numbers
Adder
Data
Current sinking
Binary
38. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop
AND array
Decade
DAT
Clock
39. A circuit that prevents loading of an input or output
Buffer
Controller
AND
AND gate
40. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Clock
Clear
D Flip-Flop
Data bus
41. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
Decoder
DRAM
CPLD
Decode
42. 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
Cascade
Concurrency
Kirchoff's Current Law(KCL)
Alphanumeric
43. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
TTL
Bleeder Current
DMA
Aliasing
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.
Distributive Law
ASCII
Architecture
DTE
45. The process of converting an analog signal to digital form
Analog
Bode Plot
Branch Current
Analog- to- digital (A/D) conversion
46. In addition - the number that is added to another number called the augend
Ampere
Addend
Choke
Analog
47. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
AND array
BIOS
Demultiplexer
Bit time
48. A digital circuit device that converts coded information into another (familiar) or noncoded form
Battery
Decoder
Augend
Bus arbitration
49. American National Standards Institute
Acceptor
ANSI
Battery
Branch Current
50. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Control Unit
Bitstream
Carry generation
Address Bus