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Impact Printers and non - Impact Printers:
Impact Printers:
These are printers in which the print-head strikes a ribbon, and include the daisywheel and thimble printer (good quality, but relatively inflexible and slow), and the dot-matrix printers. Dot-matrix printers have traditionally generated comparatively poor quality output, but the 24 pin and 48 pin versions are capable of producing high quality material. Colour options and graphics are available in some of the recent models.
Non-impact printers:
These are silent in operation and are improving in reliability and quality. These include ink-jet and ink-dot printers (particularly suitable for colour graphics); electrostatic printers (used on facsimile machines, etc.), and thermal transfer printers (suitable for smaller computer systems because of low cost, versatility, and portability). Colour printers are available in this type of printers, which are used in publishing add advertising.
Mini Computers and Micro Computers: The mini computers are intermediate in power, and may function as small mainframe computers. They are often dedicated to a particular purpo
Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec
-(9/14)log2(9/14)-(5/9)log2(5/9) calculate with solution.
QUESTION (a) Draw an annotated diagram explaining how data is transmitted to web servers during a standard form submit event. (b) What in your opinion makes a bad web site?
1.Add a Validation Rule for Date of Birth so no one under the age of 18 can be added to the table. Hint: subtract the DOB from today''s date and divide by 365.25 (watch the parenth
Packet Switching: This is one of recent techniques of switching. Packet switching was originally developed for use by ARPA network by the Defence Department of US. According t
Foundation of Computer System Q.No-1: What do you understand by the Efficiency in term of Computers? and How will you measure it? Also define Speed and its factors which ca
DATA OUTPUT : Whatever, data or information that you feed into a computer will be the data output from a computer system and will be a data file sent from the computer to a periph
APPLICATION PACKAGES : There are two options. You can either write your own program or buy an applications package, i.e. a proprietary program, 'off-the-shelf. The former option i
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