tag: Computer Science

• 2009.12.21Sajjad Heder

  Information System Development

  Early information systems were designed to be operated by information professionals, and they frequently did not attain their...

• 2009.11.29Sajjad Heder

  Memory Terminology and its General Operations

  One of the major advantages that digital systems have over analog systems is the ability to easily store large quantities...

• 2009.11.29Sajjad Heder

  What is a Plotter Printer?

  A plotter is an output device used to produce hardcopy. Plotters are used for a variety of applications, which include drawing...

• 2009.11.25Sajjad Heder

  What is a Non-impact Printer?

  All the impact printers print slow due to the slow mechanical movement of the print head. Efforts were made to eliminate...

• 2009.11.24Sajjad Heder

  What is a Chain Printer?

  Chain printer as show in the image bellow. Print characters are contained in a chain, which is moved continuously at a rapid...

• 2009.10.24Sajjad Heder

  What is a Line Printer?

  Line printers print one complete line a time and hence they are faster than character printers. Line printers are heavy-duty...

• 2009.10.24Sajjad Heder

  What is a Daisy Wheel Printer?

  The print head of a daisy wheel printer is a circular wheel, about 3 inches in diameter with arms or spokes as show in the...

• 2009.09.24Sajjad Heder

  What is a Dot Matrix Printer?

  Dot matrix printers normally have 9 or 24 pins arranged in the form of a matrix as show in the image bellow. To print a character...

• 2009.09.24Sajjad Heder

  What is a Character Printer?

  Character printers print one character at a time and hence they are slow printers. They are capable of printing at the rate...

• 2009.09.24Sajjad Heder

  What is a Printer?

  Printers are used to produce hardcopy of computer output, normally data or text, but also in case of certain printers, graphics,...

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