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Test your basic knowledge |
Digital Fundamentals
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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 basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
AND array
Closed circuit
AND
AHDL
2. A group of eight bits
Circuit
DRAM
Byte
Bidirectional shift Register
3. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Byte
Concurrency
Decode
Charge- coupled device
4. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Concurrency
Ampere
Acceptor
DMA
5. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte
Complement
Address
Diode
Alphanumeric
6. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Bleeder Current
Capacitor
Carry
Angular Velocity
7. The process of converting an analog signal to digital form
Decoder
Amplitude
Analog- to- digital (A/D) conversion
CMOS
8. American wire gauge; a standardization based on wire diameter
Carry
Choke
TTL
AWG
9. 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
DRAM
Dynamic Memory
Address
Carry propagation
10. An array of AND gates consisting of a matrix of programmable interconnection
AND array
Central processing unit
DIMM
Bias
11. In a division operation the quantity that is being divided
Bitstream
AHDL
Capacitor
Dividend
12. The beginning address of a segment of memory
Combinational logic
Comparator
Base address
AND array
13. The unit of electrical current
Ampere
Choke
CLB (Configurable Logic Block)
CPLD
14. A connection at the midpoint of a winding in a transformer
Addend
Concurrency
Kirchoff's Current Law(KCL)
Center Tap
15. In Boolean algebra - the OR operation
Decoder
Base address
AWG
Boolean addition
16. A digital counter having ten states
Decade Counter
Vx=(Vs * Rx) /RT
DMA
Amplitude
17. A binary digit - which can be either 1 or 0
Current sinking
DIMM
BIOS
Bit
18. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Controller
Control Unit
Counter
TTL
19. The mathematics of logic circuits
Boolean algebra
Decoder
Circuit Breaker
Boolean addition
20. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
bed- of- nails
D Flip-Flop
Concurrency
Bit time
21. A method of analog- to- digital conversion using a 1- bit quantization process
Current sinking
DTE
Delta Modulation
Augend
22. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load
BEDO DRAM
Diode
Binary coded decimal
Ampere- hour(Ah) rating
23. Digital Signal Processor; a special type of microprocessor that processes data in real time
ANSI
DSP
Capacity
Associative law
24. In addition - the number that is added to another number called the augend
Addend
Alphanumeric
Boolean expression
Binary
25. 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.
Distributive Law
Architecture
Carry propagation
Bandwidth
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
Boundary scan
Clear
Bode Plot
AWG
27. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions
Distributive Law
Cache memory
Address
Central processing unit
28. The application of a dc voltage to an electronic device to produce a desired mode of operation
DSP
ALU
AHDL
Bias
29. A set of interconnections that interface one or more devices based on a standardized specification
Boolean expression
Adjacency
Bus
Bistable
30. A circuit with a complete current path
Delta Modulation
AHDL
Closed circuit
Bode Plot
31. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
Choke
Demultiplexer
Bidirectional shift Register
Boolean algebra
32. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor
Design flow
Complement
Assembly language
Cross - assembler
33. The ratio of pulse width to period expressed as a percentage
Duty cycle
Decade
Acceptor
Clear
34. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Attenuation
Carry
Cache memory
Boundary scan
35. A receiving device on a bus
Norton's Theorem
Average value
Decade Counter
Acceptor
36. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Design flow
Array
Capacitor
Base
37. A document that specifies parameter values and operating conditions for an integrated circuits or other device
Battery
Bit
Delta Modulation
Data Sheet
38. A type of magnetic tape format
Collector
Digital linear tape
Commutative Law
Branch
39. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Choke
Carry propagation
Baseline
Bus interface unit
40. 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.
Ammeter
Analog- to- digital (A/D) conversion
Battery
Data Selector
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.
Associative law
Bias
Aliasing
Controller
42. A semiconductor device that conducts current in only one direction
Ammeter
ASCII
Diode
Charge
43. 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.
Array
Decode
Controller
Clear
44. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit
Decode
Boolean expression
Associative law
Vx=(Vs * Rx) /RT
45. Having two directions. the stored data can be shifted right or left
Bidirectional shift Register
Bus
Capacitance Reactance
Boolean addition
46. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Cache memory
AND gate
Bistable
Admittance
47. Having two stable states. Flip- flops and latches are bistable multivibrators.
Bistable
Amplitude
DRAM
Code
48. 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.
Carry generation
Charge- coupled device
Bode Plot
Control Unit
49. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Base
Data
Dynamic Memory
Assembler
50. 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
ABEL(Advance Boolean Expression Language)
Aliasing
Assembly language
Bode Plot
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