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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. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
Cross - assembler
Array
DRAM
Cache memory
2. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.
Data Selector
Control Bus
DTE
Dividend
3. A series of bits describing a final design that is sent to the target device during programming
Bitstream
Vx=(Vs * Rx) /RT
Cache memory
Comparator
4. 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
bed- of- nails
Decode
Bidirectional shift Register
DTE
5. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function
Dynamic Memory
Analog
Circuit
Decrement
6. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Branch
Norton's Theorem
Amplitude
AND
7. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor
CMOS
Byte
Boundary scan
Decode
8. A logic circuit used to add two binary numbers
Central processing unit
DIMM
Buffer
Adder
9. In a division operation the quantity that is being divided
Don't Care...
Array
Dividend
Capacitor
10. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Controller
Bus contention
Carry
Branch Current
11. A unit of the cross - sectional area of a wire.
Address
Bit
Cache memory
Circular Mil (CM)
12. An array of AND gates consisting of a matrix of programmable interconnection
Control Bus
Band- stop filter
Kirchoff's Current Law(KCL)
AND array
13. The process of producing an output carry in full- adder when both input bits are 1s.
Angular Velocity
Carry generation
Adjacency
Comparator
14. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Antifuse
Charge- coupled device
Bistable
Analog- to- digital converter(ADC)
15. A bridge circuit that is in the balanced state as indicated by 0 V across the output.
Balanced Bridge
DTE
Buffer
Complement
16. Consisting of numerals - letters - and other characters
Data
Bidirectional shift Register
Alphanumeric
Diode
17. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Angular Velocity
Data
Bleeder Current
Capacity
18. 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
Kirchoff's Current Law(KCL)
CMOS
Dependency notation
Data bus
19. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product
Distributive Law
Dynamic Memory
Decode
Central processing unit
20. To decrease the binary state of a counter by one
Decrement
Augend
Capacitance
Diode
21. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.
Cache memory
Cross - assembler
Average value
bed- of- nails
22. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
Collector
ASCII
Amplitude
Current sinking
23. One current path in a parallel circuit; a current path that connects two nodes
Controller
Branch
Dual in - line package
ALU
24. The process or sequence of operations carried out to program a target device
Design flow
Dependency notation
Cascade
Bandwidth
25. A resettable protective device used for interrupting execessive current in an electric circuit
Counter
DRAM
Capacitance
Circuit Breaker
26. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Balanced Bridge
Boolean multiplication
TTL
Alphanumeric
27. Characterized by ten states or values
Controller
Analog- to- digital (A/D) conversion
Decade
Bistable
28. A type of IC package whose leads must pass through holes to the other side of a PC board
Bipolar
Dual in - line package
Current sinking
Boundary scan
29. A digital counter having ten states
Balanced Bridge
Associative law
Antifuse
Decade Counter
30. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit
Capacity
Vx=(Vs * Rx) /RT
Diode
Combinational logic
31. In Boolean algebra - the AND operation
Decode
Address
Boolean multiplication
Kirchoff's Voltage Law
32. A software compiler language for SPLD programming; a type of hardware description language (HDL)
Comparator
Decade Counter
ABEL(Advance Boolean Expression Language)
DMA
33. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.
AND gate
Analog
Boolean algebra
Bit
34. One of the three regions in a bipolar junction transistor
ABEL(Advance Boolean Expression Language)
Bidirectional shift Register
Base
Addend
35. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Dependency notation
Bidirectional shift Register
Combinational logic
ABEL(Advance Boolean Expression Language)
36. The ratio of pulse width to period expressed as a percentage
Duty cycle
Address
Capacitor
Dual in - line package
37. A programming language that uses English like words and has a one- to- one correspondence to machine language
Assembly language
Aliasing
CPLD
Attenuation
38. A logic gate that produces a High output only when all of the inputs are HIGH
Band- pass filter
Byte
ANSI
AND gate
39. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
BJT
AND array
Boolean multiplication
Band- stop filter
40. Dual in - line memory module
DIMM
Boolean algebra
Assembler
Design flow
41. Having two opposites charge carriers within the transistor structure
Bipolar
Center Tap
Concurrency
BJT
42. A transformer in which the primary and secondary are in a single winding
Balanced Bridge
Bipolar
Buffer
Autotransformer
43. The maximum value of a voltage or current
Adjacency
Amplitude
TTL
Cross - assembler
44. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program
Adjacency
D Flip-Flop
Antifuse
Capacitance
45. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Counter
Bus interface unit
Bit time
Analog- to- digital (A/D) conversion
46. Burst extended data output dynamic random- access memory
Bit time
Complement
BEDO DRAM
Don't Care...
47. Having two directions. the stored data can be shifted right or left
Analog- to- digital (A/D) conversion
Bidirectional shift Register
Ampere- hour(Ah) rating
Addend
48. Sum of all the voltage drops in series equals to the source voltage
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49. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Associative law
Array
Controller
Bus interface unit
50. In Boolean algebra - the OR operation
Boolean addition
Dual in - line package
Bleeder Current
Delta Modulation