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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 digit generated when the sum of two binary digits exceeds 1
Circuit Breaker
BJT
Carry
Vx=(Vs * Rx) /RT
2. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
Cache memory
Duty cycle
BIOS
Decade
3. The beginning address of a segment of memory
Decode
Combinational logic
Base address
Capacity
4. 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.
Address Bus
Aliasing
Code
Boolean expression
5. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Clear
CMOS Complementary Metal Oxide Semiconductor
AWG
Bit time
6. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Bus interface unit
DMA
Atomic number
Controller
7. One current path in a parallel circuit; a current path that connects two nodes
Branch
Center Tap
Battery
Choke
8. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Ampere- hour(Ah) rating
CMOS
Bandwidth
Dependency notation
9. A device used to convert an analog signal to a sequence of digital codes
Bit time
Bipolar
Analog- to- digital converter(ADC)
Kirchoff's Voltage Law
10. Consisting of numerals - letters - and other characters
Alphanumeric
Thevenin Equivalent Circuit
Branch Current
Atomic number
11. 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
Thevenin Equivalent Circuit
BJT
Ammeter
Debug
12. One of the three regions in a bipolar junction transistor
Bistable
Base
Bit time
Average value
13. 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.
Dynamic Memory
Control Unit
Amplitude
Binary
14. Characterized by ten states or values
BEDO DRAM
Debug
Decade
Vx=(Vs * Rx) /RT
15. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
Band- pass filter
Decoder
Bandwidth
Antifuse
16. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Bode Plot
Clear
Autotransformer
Bus contention
17. A combined coder and decoder
AND gate
Adder
AND
Code
18. A group of eight bits
AWG
Asynchronous counter
Byte
Array
19. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Bus interface unit
Diode
Boundary scan
Circular Mil (CM)
20. To decrease the binary state of a counter by one
Addend
Charge
Decrement
D Flip-Flop
21. The smallest particle of an element possessing the unique characteristics of that element.
Thevenin Equivalent Circuit
Controller
Atom
Autotransformer
22. Information in numeric - alphabetic - or other form.
Data
Capacitance Reactance
Kirchoff's Voltage Law
Demultiplexer
23. In addition - the number to which the addend is added
Average value
Ampere
Augend
Angular Velocity
24. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits
Associative law
Kirchoff's Voltage Law
BJT
Binary
25. 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
Carry generation
Balanced Bridge
Clock
Boundary scan
26. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs
Component
Circuit
Apparent power
Binary coded decimal
27. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function
Capacitance Reactance
Bandwidth
CLB (Configurable Logic Block)
Circuit
28. The number of protons in a nucleus
Don't Care...
Concurrency
AHDL
Atomic number
29. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously
Data Sheet
Concurrency
Array
Atom
30. A logic circuit used to add two binary numbers
DMA
Adder
TTL
Concurrency
31. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.
Decade
Apparent power
Adjacency
Debug
32. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Control Bus
TTL
Baseline
Cascade
33. 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
Byte
Autotransformer
AND gate
Cascade
34. 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
Binary
Bode Plot
CPLD
Vx=(Vs * Rx) /RT
35. Having two directions. the stored data can be shifted right or left
Average value
Bitstream
Architecture
Bidirectional shift Register
36. A condition where all the load currents are equal and the neutral current is zero
Balanced Load
Bipolar
Decade
Carry propagation
37. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Address
Cache memory
DTE
Carry propagation
38. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.
Branch
ALU
Augend
Closed circuit
39. Describes a number system with a base of ten
Decimal
Alphanumeric
Charge
Boolean addition
40. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Admittance
Commutative Law
Ampere- hour(Ah) rating
Base
41. An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.
Assembly language
Balanced Bridge
Assembler
Controller
42. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
43. In Boolean algebra - the OR operation
BEDO DRAM
Boolean addition
Battery
Dynamic Memory
44. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
Dividend
Demultiplexer
Addend
Concurrency
45. Digital audio tape; a type of magnetic tape format
Complement
AHDL
DSP
DAT
46. A digital circuit device that converts coded information into another (familiar) or noncoded form
bed- of- nails
AHDL
Decoder
Byte
47. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Branch
Center Tap
DMA
Balanced Bridge
48. A set of interconnections that interface one or more devices based on a standardized specification
Bit time
bed- of- nails
Astable
Bus
49. 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
Ampere- hour(Ah) rating
bed- of- nails
Decoder
Band- pass filter
50. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative
Address Bus
Charge
Decoder
Closed circuit