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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. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Decode
Kirchoff's Voltage Law
AND
Analog- to- digital converter(ADC)
2. The process that prevents two sources from using a bus at the same time
Assembler
Carry propagation
Bus
Bus arbitration
3. 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.
Decade
Bandwidth
Band- pass filter
Addend
4. One current path in a parallel circuit; a current path that connects two nodes
Branch
Baseline
Distributive Law
ASCII
5. 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
Digital linear tape
Clear
Ampere- hour(Ah) rating
DAT
6. Consisting of numerals - letters - and other characters
Alphanumeric
Carry propagation
AND array
Address Bus
7. Burst extended data output dynamic random- access memory
BEDO DRAM
Analog- to- digital converter(ADC)
Demultiplexer
Collector
8. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Data Selector
Capacitor
Analog- to- digital converter(ADC)
Control Bus
9. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits
Digital linear tape
Aliasing
Binary
Assembler
10. Describes a number system with a base of ten
Admittance
Decimal
Commutative Law
Dual in - line package
11. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Ampere
D Flip-Flop
Capacitance Reactance
Address Bus
12. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
Band- stop filter
Code
DSP
Decimal
13. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
Branch
Balanced Bridge
Demultiplexer
Circuit Breaker
14. One of the three regions in a bipolar junction transistor
Boolean multiplication
Addend
Base
Decade Counter
15. The process or sequence of operations carried out to program a target device
Design flow
Collector
Atomic number
Thevenin Equivalent Circuit
16. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Diode
TTL
CMOS Complementary Metal Oxide Semiconductor
Binary coded decimal
17. 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
bed- of- nails
Center Tap
Clock
Battery
18. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
Circuit Breaker
Closed circuit
Band- pass filter
bed- of- nails
19. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Control Bus
Thevenin Equivalent Circuit
Charge
Adder
20. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
Clear
AWG
Bus arbitration
DRAM
21. 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
Branch
Data bus
Component
CPLD
22. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Branch Current
bed- of- nails
Capacity
Decode
23. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Asynchronous counter
Boundary scan
Capacitance Reactance
DTE
24. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Cascade
Delta Modulation
Circular Mil (CM)
Bus interface unit
25. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor
Decade Counter
Cross - assembler
Dynamic Memory
Circular Mil (CM)
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
Dividend
Bus contention
Control Unit
Clear
27. Digital audio tape; a type of magnetic tape format
Circuit
DAT
Bus
BIOS
28. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Apparent power
TTL
Combinational logic
Ampere- hour(Ah) rating
29. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Bus arbitration
AND gate
Assembler
Dependency notation
30. The time from the application of a valid memory address to the appearance of valid output data
Capacitor
BJT
Capacitance
Access time
31. A receiving device on a bus
Decrement
Current sinking
Component
Acceptor
32. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product
BEDO DRAM
Distributive Law
CMOS Complementary Metal Oxide Semiconductor
CMOS
33. In Boolean algebra - the OR operation
Aliasing
Base
Associative law
Boolean addition
34. Having two opposites charge carriers within the transistor structure
Carry
Bipolar
Bitstream
Ampere
35. 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.
36. 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.
Circuit Breaker
Circuit
Comparator
Access time
37. Altera HDL; a nonstandard HDL
AHDL
Boolean multiplication
CMOS Complementary Metal Oxide Semiconductor
Adjacency
38. A resettable protective device used for interrupting execessive current in an electric circuit
Assembler
Circuit Breaker
Distributive Law
Decoder
39. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.
AWG
Dividend
Carry
Average value
40. A logic gate that produces a High output only when all of the inputs are HIGH
Current sinking
Bidirectional shift Register
AND gate
DCE
41. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte
Boolean multiplication
Bus
Address
Dual in - line package
42. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Ammeter
Central processing unit
Demultiplexer
DMA
43. An array of AND gates consisting of a matrix of programmable interconnection
Charge
AND array
Concurrency
Commutative Law
44. Data Terminal equipment
Band- stop filter
Analog
DTE
Data
45. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Angular Velocity
Balanced Bridge
Branch
Bipolar
46. 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
Distributive Law
Assembly language
Control Bus
Boolean multiplication
47. A program that converts English- like mnemonics into machine code
Analog
Assembler
Bidirectional shift Register
Thevenin Equivalent Circuit
48. To decrease the binary state of a counter by one
Acceptor
Don't Care...
Decrement
Boolean expression
49. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Associative law
Collector
Capacity
Boolean expression
50. 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
Vx=(Vs * Rx) /RT
Complement
Array
Norton's Theorem