46. Which of the following printer can be classified as a page-at-a-time printer?

A. Laser printer
B. Dot-matrix printer
C. Thermal printer
D. Inkjet printer
E. None of the above

47. 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

48. Which of the following registers hold the information before it goes to the decoder

A. control register
B. data register
C. accumulator
D. address register
E. None of the above

49. A modern electronic computer is a machine that is meant for

A. doing quick mathematical calculations
B. input, storage, manipulation and outputting of data
C. electronic data processing
D. performing repetitive tasks accurately
E. None of the above