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Q. Explain working of DotMatrix or InkJet Printers?
Three major issues consider the quality of characters generated by DotMatrix/InkJet Printers: - Number of dots in the matrix of every character, the size of dots and addressability of the Printer. Denser matrix and smaller dots make better characters.
Addressability is the accuracy with that a dot can be produced (for example 1/120 inch means printer can put a dot with 1/120 inch of the required dot). Minimum dot matrix employed by general dot matrix printers is 9×9 dots, 18-pin and 24-pin printers use 12×24 to 24×24 matrices. Inkjets may even give up to 72×120 dots. Quality of output also relies on paper used. If ink of an Inkjet printer gets absorbed by paper, it spreads and spoils the resolution.
What is generalization? Generalization is a relationship among a class (super class) and one or more variations of the class (sub classes).It arrange classes by similarities an
Q. What is Multiple Interrupt Lines? Multiple Interrupt Lines: Simplest solution to problems above is to provide multiple interrupt lines that will result in immediate recognit
explain tower of Hanoi problem?
The typicality of virtual addresses is that: They are longer than physical addresses because total addressed memory in virtual memory is more than actual physical memory.
Q. Convert the following into SOP form 1. (A+B) (B'+C) (A'+ C) 2. (A+C) (AB'+AC) (A'C'+B) 3. (A'+B') (C'+B) Q.Convert the following into POS form 1. WYZ + XYZ + W'X'
Q. What is Effective Address ? The symbol EA (Effective Address) refers to a physical address in a non-virtual memory environment and refers to a register in a virtual memory a
Q. How I-O interface communicate with processor? The above illustration clearly specifies need communication between processor and I/O interface. This communication includes su
Q. Characteristics of Magnetic disk? Tracks and Sectors: Disk is divided in concentric rings known as tracks. Thus a track is one complete rotation of disk underneath read/wr
In which A/D converter has the speed of conversion is maximum ? Ans. In Parallel-comparator A/D converter, the speed of conversion is maximum. Speed of conversion is maximum a
What is actor? An actor is a direct external user of a system. Every actor shows objects that behave in a particular way towards systems. Actors are directly linked to system.
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