Computers Fundamentals Chain Printer Drum Printer Hard Copy Soft Copy

While images are called graphics, most of the upcoming displays are capable of displaying text and both types of outputs. (1) There are two ways to know the details of the resolution on the size [meter] Aspect Ratio and Screen Size Conventional Nurse

The Aspect Ratio of Sween is 43. The meaning is that the width and height of Is. The Aspect Ratio in Wale Semen LCD Monite is generally 169. In special circumstances it can also be 1610 or 15:9.

it happens. All types of displays including projection surfaces are commonly referred to as screens. Screen Sire is generally considered to be the distance between one corner to another in Inches. There is a significant difference in measuring Screen Sure of CRT Monitors and LCD Monitors. In CRT Monitors, the Screen Size is defined by the Outer Edges including Display Casing, while in LCD Monitors, the Screen Size is defined by the Inside Beveled Bages. Due to this difference in measuring the screen size, the display of a 17-inch LCD monitor is almost equal to the display of a 19-inch CRT monitor.


Question- What is lineprinter? Write its procedure. What is Line Printer? Write its working.

Answer: Line printers print one line of output at a time. Most line printers use Impact printing technology. Their printing speed is 300 to 3,000 signs per minute. Mini computers and mainframe computers are used for larger purposes. The line is as follows-

(1) Drum Printer -

 There is an drum rotating in the imprinter, on whose surface the characters are raised. All the letters have one on one, there are many such bands on Im. By which the character] can be decorated in every position of the sign on the paper. I'm rotating fast and there is one line in one rotation. A high speed hammer strikes against the paper at each appropriate character and a line is drawn at the completion of one rotation.

(2) Chain Printer –

 In this printer. There is a pen which rotates very fast. Characters are hatched in the pen. Each link has a character font. The hammer remains bare at each print position. The hammer strikes the paper and the character to imprint one line at a time.


Question - What is the difference between hard copy output and soft copy output? What is the difference between Hard Copy Output and Soft Copy Output?

Answer- The output devices of the computer can usually present the results in the following two states-

(1) Hard Copy 

 The output printed on any or Microfilm is called Hard Copy. It is permanent. Mostly printers are used for hardcopy.

(2) Soft Copy 

 When the result (output) obtained from the system unit (CPU) is displayed on the monitor, then this result is called soft copy. It is temporary.

______________
Related searches

dca 2nd sem notes in hindi pdf download
dca notes in hindi pdf download
dca 1st sem notes pdf download
dca computer course notes in hindi pdf download
dca question paper with answer pdf
free basic computer notes pdf in hindi
computer hindi notes dca 2nd sem
dca 1st sem pc package notes in hindi