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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 action of a circuit in which it accepts current into its output from a load
Branch
Asynchronous counter
Acceptor
Current sinking
2. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Bus contention
D Flip-Flop
Autotransformer
DIMM
3. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
Carry propagation
Astable
Data
Choke
4. 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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5. 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
Bleeder Current
Control Bus
Decoder
AWG
6. The process of producing an output carry in full- adder when both input bits are 1s.
Atomic number
Boolean algebra
Cross - assembler
Carry generation
7. An electrical instrument used to measure current
Component
Dividend
Ammeter
Access time
8. A programming language that uses English like words and has a one- to- one correspondence to machine language
Assembly language
Aliasing
DCE
Cascade
9. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor
Cross - assembler
Addend
Bode Plot
Dynamic Memory
10. 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.
Bidirectional shift Register
Bandwidth
Charge
DTE
11. The smallest particle of an element possessing the unique characteristics of that element.
Dual in - line package
Alphanumeric
Atom
Center Tap
12. Burst extended data output dynamic random- access memory
Architecture
Combinational logic
Boolean algebra
BEDO DRAM
13. A logic circuit used to add two binary numbers
Concurrency
Dual in - line package
Aliasing
Adder
14. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function
Circuit
Adjacency
Carry
Bus interface unit
15. A digital counter having ten states
Decade Counter
Bitstream
Array
CMOS Complementary Metal Oxide Semiconductor
16. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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17. 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
Assembler
Analog
Capacitor
18. An array of AND gates consisting of a matrix of programmable interconnection
Apparent power
Array
Circuit
AND array
19. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Bus interface unit
Bipolar
DRAM
Data
20. The current left after the total load current is subtracted from the total current into the circuit
Base
Bleeder Current
ALU
Ampere- hour(Ah) rating
21. The process or sequence of operations carried out to program a target device
Band- pass filter
Control Bus
Kirchoff's Voltage Law
Design flow
22. A type of IC package whose leads must pass through holes to the other side of a PC board
Base
Autotransformer
Control Unit
Dual in - line package
23. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Bode Plot
Average value
Commutative Law
Battery
24. Sum of all the voltage drops in series equals to the source voltage
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25. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor
Balanced Load
Binary
CMOS
Access time
26. 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
Clear
AND array
CMOS
Delta Modulation
27. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Don't Care...
DRAM
TTL
Associative law
28. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits
Adjacency
CPLD
Binary
Average value
29. In Boolean algebra - the AND operation
Norton's Theorem
Collector
Bus arbitration
Boolean multiplication
30. A type of magnetic tape format
Bistable
Bleeder Current
Dividend
Digital linear tape
31. 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.
DAT
BEDO DRAM
Asynchronous counter
Circuit
32. The digit generated when the sum of two binary digits exceeds 1
Analog- to- digital converter(ADC)
Cache memory
Circuit Breaker
Carry
33. The ratio of pulse width to period expressed as a percentage
ANSI
Duty cycle
Binary coded decimal
Capacitance Reactance
34. A binary digit - which can be either 1 or 0
Ampere- hour(Ah) rating
Analog
Ampere
Bit
35. One of the three regions in a bipolar Junction transistor(North junction of NpN)
D Flip-Flop
Collector
Central processing unit
Assembly language
36. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
Collector
Associative law
Dual in - line package
Analog- to- digital (A/D) conversion
37. The maximum value of a voltage or current
Data
Amplitude
DCE
Balanced Load
38. A resettable protective device used for interrupting execessive current in an electric circuit
Circuit Breaker
Base address
Data
Demultiplexer
39. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.
Boundary scan
bed- of- nails
ALU
Bus
40. American wire gauge; a standardization based on wire diameter
AWG
ABEL(Advance Boolean Expression Language)
AND array
CMOS Complementary Metal Oxide Semiconductor
41. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
Demultiplexer
DTE
Band- pass filter
Capacitance
42. 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
Branch Current
Clock
Bus arbitration
Circuit
43. The mathematics of logic circuits
Control Unit
Cache memory
Boolean algebra
Clear
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.
Central processing unit
Carry propagation
Demultiplexer
Architecture
45. A group of eight bits
Base address
Don't Care...
Byte
DSP
46. A set of interconnections that interface one or more devices based on a standardized specification
Bidirectional shift Register
Bit time
Bus
Architecture
47. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Boolean algebra
Binary coded decimal
Capacity
Concurrency
48. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
Closed circuit
DRAM
BIOS
Digital linear tape
49. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Data Sheet
Charge- coupled device
Array
Ampere- hour(Ah) rating
50. A receiving device on a bus
Baseline
Data Selector
Acceptor
Debug