goanywhere

I want to introduct something about Outdoor CCD Camera. Country of Origin: China (mainland) Brand Name: JSP Main Export Markets: Eastern Europe North America Mid East/Africa Central/South America Asia Western Europe Australasia Outdoor CCD Camera DF- 8103 Outdoor CCD Camera with IR LED and Aluminum Housing View basket Chat with supplier using: Key Specifications/Special Features: Day and night camera Digital signal processing (DSP) 28-unit IR LED Aluminum housing Dimensions (D x H x W): 73 x 150 x 125mm Model no: DF-8103 Image pick-up device: 1/3 inches Sharp color CCD Number of pixels: NTSC: 510 (H) x 492 (V) PAL: 500 (H) x 582 (V) Scanning system: NTSC: 525 lines, 60 field/sec PAL: 625 lines, 50 fields/sec Sync system: internal synchronization Horizontal resolution: 420 TV lines Gamma characteristic: 0.45 Video output: 1.0Vp-p, 75 Ohms S/N ratio: >= 48dB (AGC off) Electronic shutt HP-41CX with magnetic card reader and thermal printer The HP-41 series are programmable, expandable, handheld RPN calculators made by Hewlett-Packard from 1979 to 1990. The original model, HP-41C, was the first of its kind to offer alphanumeric display capabilities. Later came the HP-41CV and HP-41CX, offering more memory and functionality. Contents 1 The alphanumeric "revolution" 2 Expandability 3 The HP-41CV and CX 4 The HP-41C community and Synthetic programming 5 See also 6 References 7 External links // The alphanumeric "revolution" The alphanumeric LCD screen of the HP-41C revolutionized the way a calculator could be used, providing user friendliness (for its time) and expandability (keyboard-unassigned functions could be spelled out alphabetically). By using an alphanumeric display, the calculator could tell the user what was going on: it could display meaningful error messages ("ZERO DIVIDE") instead of simply a blinking zero; it could also verbally prompt the user for arguments ("ENTER RADIUS") instead of just displaying a question mark. Earlier calculators needed a key, or key combination, for every available function. The HP-67 had three shift keys; the competing Texas Instruments calculators had two (2nd and INV) and over 50 keys. The HP-41C had a relatively small keyboard, and only one shift key, but provided hundreds of functions. Every function that was not assigned to a key could be invoked through the XEQ key (pronounced EXEQTE "execute") and spelled out in full, e.g. XEQ FACT for the factorial function. The calculator had a special user mode where the user could assign any function to any key if the default assignments provided by HP were not suited to a specific application. For this mode, the HP-41C came with blank keyboard templates; i.e. plastic covers with holes for the keys, so the user could annotate customized keys. Hewlett-Packard even sold a version of the calculator where hardly any keys had function names printed on them, meant for users who would be using the HP-41C for custom calculations only (thus not needing the standard key layout at all); this version of the calculator was colloquially known, within HP's Corvallis calculator team, as a "Blanknut" (because the development code name for the HP-41c's processor was known as the "coconut"). Alphanumeric display also greatly eased editing programs, as functions were spelled out in full. Numeric-only calculators displayed programming steps as a list of numbers, each number generally mapped to a key on the keyboard, often via row and column coordinates. Encoding functions to the corresponding numeric codes, and vice versa, was left to the user, having to look up the functionode combinations in a reference guide. In addition to this, the user had to mentally keep function codes separate from numeric constants in the program listing. The HP-41C displayed each character in a block consisting of 14 segments that could be turned on or off; a so-called fourteen segment display (similar to the much more common seven segment displays, which can be used to display digits only). The HP-41C used a liquid-crystal display instead of the ubiquitous LED displays of the era, to reduce power consumption. While this allowed the display of uppercase letters, digits, and a few punctuation characters, some designs needed to be twisted arbitrarily (e.g. to distinguish S from 5) and lowercase letters were unreadable (HP only provided display of lowercase letters a through e). HP's competitor Sharp, when introducing the PC-1211, used a dot matrix of 57 dots and displayed the characters in principle as we see them today on computer screens (and, in fact, many LCD screens on various embedded systems); this was later used by HP with the HP-71B handheld computer. Expandability See main article HP-41 Extension Module The functions of the calculator could be expanded by adding modules at the back of the machine. Four slots were available to add more memory, pre-programmed solution packs containing programs covering engineering, surveying, physics, math, finance, games, etc. Hardware extensions included a thermal printer, a magnetic card reader (HP-67 compatible via converter software), and a barcode "wand" (reader). Another module, known as the Interface Loop allowed for connection of more peripherals: larger printers, microcassette tape recorders, 3?" floppy disk drives, RS-232 communication interfaces, video display interfaces, etc. The Interface Loop could also be used with the HP-71B, HP-75 and HP-110 computers. The HP-41CV and CX Many users had used all four ports for memory expansion, leaving no room for other modules. HP designed the Quad Memory Module with four times the amount of memory, providing the maximum available memory and leaving three empty ports available. The HP-41CV (V...(and so on) To get More information , you can visit some products about mp3 player firmware, garden swings, laser cutting equipment, murano glass chandeliers, manual valve, 1 2 coupling, colored lead pencils, barge cargo, injection molding screw, italy leather bag, . The Outdoor CCD Camera products should be show more here!