Related Questions

Which country hosted the fisrt ever G20 Digital Ministerial Meeting on Digital Ministerial on Digital Economy?
A Japan
B Germany
C Russia
D France
One of the advantages of base modulation over collector modulation of a transistor class C amplifier is
A Improved efficiency
B Better linearity
C High power output per transistor
D The lower modulating power requirement
The computers that we use are digital whereas we live in an analog world which means that we have to translate analog data into digital data. What is the name of the circuit which helps us in this conversion?
A D/A converter
B A/D converter
C Voice recognition
D Adapter
E None of the above
Which country hosted the first -ever G-20 Digital Ministerial Meeting on Digital Economy ?
A Japan
B Germany
C Russia
D France
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?
A Interface
B Modem
C Attenuation
D Teleprocessor
E None of the above
Which digital currency, introduced in 2009 by an anonymous person or group of people using the pseudonym Satoshi Nakamoto, is often called 'digital gold'?
A Ethereum
B Litecoin
C Bitcoin
D Ripple (XRP)
Advertisement : "Veran VE90 Digital Photocopier.Now digital technology makes this copier better than your average Lasee-copier.It means you get laser quality printing for only Tk. 30,029.99." The main selling point of this advertisement would be nullified if :
A Laser-jet copiers work on average more quickly the VE90 copier
B Laser-jet copiers cost less than Tk. 30,029.99
C Laser-jet copiers produced inferior copies to the VE90
D Laser-jet copiers cost more than Tk. 30,029.99
Which of the following represents the correct set of modulation classification?
A Frequency, time period
B Frequency, amplitude
C Amplitude, wavelength
D Wavelength, frequency
Which of the following performs modulation and demodulation?
A coaxial cable
B modem
C fiber optic
D satellite
Which one of the following statements about differential pulse code modulation (DPCM) is true?
A The sum of message signal sample with its prediction is quantized
B The message signal sample is directly quantized, and its prediction is not used
C The difference of message signal sample and a random signal is quantized
D The difference of message signal sample with its prediction is quantized

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