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
After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?
A Telex
B Word processor
C Facsimile
D Electronic mail
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
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
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
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 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)
In data communication which device converts digital data to analog signal?
A Router
B Modem
C Switch
D HUB
Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?
A Paperless office
B Electronic mail
C Global network
D Electronic newspaper
E None of the above
In a synchronous modem, the digital-to-analog converter transmits signal to the
A equalizer
B modulator
C demodulator
D terminal
E None of the above

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