Related Questions

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 ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?
A 7
B 11
C 13
D 16
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
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
A The student of khulna University do not usually take physical exercise.
B No respondent took more than one form of exercise.
C The method of data collection was not valid.
D Some of the respondents took more than one form of exercise.
Price of paper has increased by 20%. Approximately, what percent of the paper usage must be curtailed so that the expenditure for paper remains the same?
A 8.66%
B 12.33%
C 16.66%
D 17.33%
Which command is used to display the subdirectory structure of the currently logged drive and pause the screen display after each screenful of information?
A TREE
B DELTREE/F
C DIR | MORE
D TREE | MORE
E None of the above
While working with MS-DOS, which command is used to switch to the monochrome display from color display?
A MODE BLACK
B MODE B/W
C MODE MONO
D MODE CO40
E None of the above
Which command is used to display the subdirectory structure of the currently logged drive and pause the screen display after each screen full of the information?
A Tree
B Deltree/f
C Dir | more
D Tree | more
While working with MS-DOS, which command is used to display the contents of a file and pause the display after each screenful of information?
A TYPE filename | MORE
B CAT filename | MORE
C CAT filename | pg
D MORE filename
E None of the above
A machine can produce 10 units in 5 hours. Another machine can produce 5 units in 10 hours. Working together, how many units can they produce in 30 hours?
A 50 units
B 60 units
C 70 units
D 80 units

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