Related Questions

The use of computers in data processing has had several impacts on business. Which of the following is not one of them?
A easier business growth
B fewer clerical workers
C increased data-processing costs
D more and better information
E None of the above
The CPU of a computer transfers print output to a temporary disk memory at high speed and then gets back to processing another job without waiting for the output to got to the printer. In this way, the CPU does not remain idle due to its own high speed as compared to the low speed of the printer. What is the name of this memory?
A External memory
B I/O memory
C ROM
D Buffer memory
E None of the above
The processing, which normally consists of a small computer with one or more peripheral devices, connected via a high-speed line to the large control computer is known as
A On-line processing
B Remote-terminal processing
C Batch mode processing
D Intelligent terminal Processing
E None of the above
Consider a company that assembles computers. The probability of a faulty assembly of any computer is p. The company therefore subjects each computer to a testing process. This testing process gives the correct result for any computer with a probability of q. What is the probability of a computer being declared faulty?
A pq + (1 - p) (1 - q)
B (1 - q)p
C (1 - p)q
D pq
Sometime data are gathered over a period of time and collected into a group before entering them into a computer for processing. What type of processing is it called?
A Interactive processing
B Sequential processing
C Batch processing
D Group processing
E None of the above
Which of the following terms could be used to describe the concurrent processing of computer programs, via CRTs, on one computer system?
A Time-sharing
B Online processing
C Interactive processing
D All the above processing
E None of the above
The Central Processing Unit is an embeded chip that acts as the 'brains' of a computer. What Intel chip was used in the Altair (the first real personal computer)?
A 6502
B 8080
C 6400
D 8286
The rate of impacts of the bombardment has reduced to the current level, and is assessed by -
A Earth's age
B Studying the records of moon
C Examining the rocks
D The crustal motion
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.
A 10 times
B 5 times
C 15 times
D 20 times
(i) What is global warming? How global warming affects the rapid change of climate? (ii) What are the bad impacts of climate change? (iii) How climate change affects the environment of Bangladesh (iv) How global warming can be minimized (v) What should be the role of students to protect the environment.
A (i) Global warming is the main natural reason and using harmful chemicals in everyday life the main reason created by men. The climate is changing rapidly that result in the rise of the earth's average temperature
B (ii) Climate change impacts include floods, cyclones, storm surges and drought, ice sheets melting which will seriously affect the agriculture and livelihood especially at the poor.
C (iii) Bangladesh is one of the largest deltas in the world which is highly vulnerable to Natural Disasters because of its Geographical location, Fiat and low-lying landscape, Population density, Poverty, Illiteracy, Lack of Institutional setup, etc.
D (iv) To reduce the bad impact of climate change people should be aware of. Tree plantation can reduce global warming which is the main natural reason for climate change. Stop using harmful chemicals can reduce environmental pollution which is the main man
E (v) Students should be careful to protect the environment and raise awareness. Thus the students can play a vital role to reduce bad impact of climate changes.

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