Photographic Paper

Until the advent of digital photographic processes, the individual meaning of photographic.

Paper was paper covered with light-sensitive chemicals. So-called photo papers of today are frequently specially coated papers for use in inkjet or laser printers to make digital prints. This article center of attention on traditional photographic papers. Photographic paper may be showing to light in a controlled manner either by placing a negative in make contact with the paper directly (contact printing) or by using an enlarger (enlarging) in order to create a latent image. Photographic papers are subsequently developed using wet chemicals to generate a visible image.

Barcode Printer

A barcode printer (or bar code printer) is a computer peripheral for printing barcode labels or tags that can be fond of to physical objects. Barcode printers are normally used to label cartons before shipment, or to label retail items with UPCs or EANs.

The most regular barcode printers employ one of two different printing technologies. Direct thermal printers use a printhead to produce heat that causes a chemical reaction in specially designed paper that turns the paper black. Thermal transfer printers also use heat, but instead of reacting the paper, the heat melts a waxy or resin material on a ribbon that runs over the label or tag material. The heat transfers ink starting the ribbon to the paper. Direct thermal printers are normally less expensive, but they produce labels that can become illegible if exposed to heat, direct sunlight, or chemical vapors.

Barcode printers are designed for various markets. Industrial barcode printers are used in big warehouses and manufacturing facilities. They have big paper capacities, operate faster and have a longer service life. For retail and office environments, desktop barcode printers are most regular.

Typewriter-Derived Printers

Several dissimilar computer printers were simply computer-controllable versions of existing electric typewriters. The Friden Flexowriter and IBM Selectric typewriter were the most-general examples. The Flexowriter printed with a conservative typebar mechanism while the Selectric used IBM's well-known "golf ball" printing mechanism. In either case, the letter form then struck a ribbon which was pressed beside the paper, printing one character at a time. The utmost speed of the Selectric printer (the faster of the two) was 15.5 characters per second.

Integrated circuit

Integrated circuit viewing memory blocks, logic and input/output pads around the periphery Microchips with a transparent window, showing the integrated circuit inside. Note the fine silver-colored wires that attach the integrated circuit to the pins of the package. A monolithic integrated circuit (also known as IC, microcircuit, microchip, silicon chip, or chip) is a miniaturized electronic circuit (consisting mostly of semiconductor devices, as well as passive components) that has been contrived in the surface of a thin substrate of semiconductor material.

A hybrid integrated circuit is a miniaturized electronic circuit build of individual semiconductor devices, as well as passive components, bonded to a substrate or circuit board.