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We all have not less than one technologically challenged relative. We will e-mail photographs or publish them on a private Internet web page for some of our loved ones, but there are others who want nothing to do with a computer, let alone the Web. The proper gadget for sharing photos with the computerless is the digital image frame. It is a system about the size and shape of an bizarre picture body. It incorporates an LCD display, which displays multiple images in a slideshow format, and it connects to the Web via phone line to download new footage and information to display on the screen. The frames are fairly related in development, although they do provide some completely different options. In this version of HowStuffWorks, we'll have a look on the Ceiva Digital Photo Receiver. Before we get into precisely how it works, let's see what it does. The thought is that a person who does have a computer, a digital digicam and laptop expertise buys the frame, units up the account and Memory Wave Experience passes it on.
As soon as the account is arrange, you (the person with the pc) add photographs to the Ceiva Web site. Each night, the digital image body (in the computerless person's house) uses the cellphone line to hook up with the Ceiva servers and download any new pictures. You can even management all the frame's settings through the online site. It has most of the same parts as the computer on your desktop, but they're quite a bit less complicated in the body as a result of they solely must carry out a single activity. The central processing unit (CPU) within the Ceiva digital picture body is just like the type utilized in small, electronic handheld video games. Probably the most processor-intensive process performed by this CPU is downloading footage from the online site. The rest of the time, it doesn't break a sweat. It also has some Flash Memory Wave Experience, which is the place the photographs, settings and a few of the operating software program live.
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Both varieties of memory are persistent -- no information is misplaced if the unit is unplugged. The frame has a 33.6-Kbps modem, which it uses to connect to the Web and obtain the brand new photos you submit. The show is a 640x480-pixel, passive-matrix liquid crystal show (LCD) with a viewing space of about 5 by 7 inches (13 by 18 cm). The sort of show is thin sufficient that the digital body is not much thicker than an bizarre picture frame. The images are displayed in 12-bit shade, which signifies that approximately 4,100 completely different colours will be presented on the screen. The one consumer-operated controls on the body are a black button, which adjusts the brightness of the show, and a white button that turns the frame on when the user first plugs it in and can be used to manually dial in. The Ceiva body makes use of an embedded operating system called PSOS.
This working system is designed for Memory Wave gadgets like PDAs, electrical-testing equipment and set-top containers. Let's check out how the Ceiva frame works. If the consumer presses and holds the white button on the again of the body, it dials up and connects to the Web. The $50-per-12 months charge for the Ceiva service consists of entry to the Internet by way of an area cellphone number. The connection to the Web is used only to download the new images and settings to the body. There isn't any interactivity, no Internet entry and no e-mail. The device is designed to behave like an image frame, not a computer. Once logged on, the frame compares the images already on the body to those ready to be sent, downloading any new ones. It additionally downloads any new settings. When it's completed downloading, the body hangs up the telephone line and begins displaying the brand new pictures one after one other.