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The Epson name was coined by joining the initials EP (Electronic Printer) and the word son, making "Epson" mean "Electronic Printer's Son". [9] In April of the same year, Epson America Inc. was established to sell printers for Shinshu Seiki Co. Epson HX-20
An example of a wide-carriage printer, designed for paper 14 inches wide, shown with legal paper loaded (8.5"×14") Print head of a 24-pin printer (Tally Genicom T2240) Print head of a 9-pin printer (Star NL10) The common serial dot matrix printers use a horizontally moving print head. [32]
Some support technicians refer to it as "biological interface error". The networking administrators' version is referring to the cause of a problem as a " layer 8 issue", referring to the "user" or "political" layer on top of the seven-layer OSI model of computer networking.
The problem is that in estimating the sample mean, the process has already made our estimate of the mean close to the value we sampled—identical, for n = 1. In the case of n = 1, the variance just cannot be estimated, because there is no variability in the sample. But consider n = 2. Suppose the sample were (0, 2).