Digital Picture Frame

Now people with no computer, no digital camera and even no computer skills can enjoy the same great pictures as people who do have these things. This is due to the new invention of a digital picture frame. This picture frame contains an LCD screen that displays multiple photos in a slide show format. This frame connects to the internet via a phone line so that new pictures and information are displayed on the screen. The idea behind these frames are that the person who does have a computer, a digital camera and computer skills will buy the frame, set up an account and then passes it on to family or friends.

An account will have to be set up by the person using the computer and photos are then uploaded to the Web site. The digital picture frame uses the phone line to connect to the internet and the servers each night and downloads any new pictures that are available. The new pictures automatically show up the next morning, showing up in the slide show rotation.

Not only are the photos uploaded from the website, but the settings controlling the frame are accessible here as well. Some settings available are the time the frame turns on and off, the slide show interval and the dial-up phone numbers.

The digital frame is actually a very simple computer, containing most of the same components as a desktop computer. The frame has a central processing unit or CPU that is similar to the ones used in small, headlined games. This CPU is used to download the pictures from the Web site. The frame also has ROM memory to store the operating system as well as flash memory, which contains the pictures, settings and some other operating software. No data will be lost if the frame is unplugged. The frame connects to the internet using a 33.6 Kbps modem and the display is 640 x 480 pixel liquid crystal display or LCD with a viewing area of 5x7 inches. The pictures are displayed in 12-bit color, meaning that about 4,100 different colors can be presented on the screen. The frame has two buttons used to control it. There is a black button, which adjust the brightness of the display and a white button that turns the frame on and can also be used to manually dial in. The operating system used by the frame called PSOS, is designed for devices such as PDAs and other small devices.

To create a photo gallery, the frame has to be plugged into a phone line and a power outlet. The frame will start to display the pictures originally stored on the frame after the user presses and holds the white button on the back of the frame to dial up and connect to the internet. This connection to the internet is used only to download photos and setting to the frame and nothing else. Once connected to the internet, the frame logs on to the servers then the frame compares the pictures already on the frame to the ones waiting to be sent and downloads any that are new photos as well as any new settings. When the frame is finished downloading, the phone line is hung up and the frame starts displaying the new photos one after another.

Bluetooth Earphone

Bluetooth is a wireless protocol utilizing short-range communications technology facilitating both voice and data transmissions over short distances from fixed and/or mobile devices, creating wireless personal area networks (PANs). The intent behind the development of Bluetooth was the creation of a single digital wireless protocol, capable of connecting multiple devices and overcoming issues arising from synchronization of these devices. Bluetooth provides a way to connect and exchange information between devices such as mobile phones, telephones, laptops, personal computers, printers, GPS receivers, digital cameras, and video game consoles over a secure, globally unlicensed Industrial, Scientific, and Medical (ISM) 2.4 GHz short-range radio frequency bandwidth. The Bluetooth specifications are developed and licensed by the Bluetooth Special Interest Group. The Bluetooth SIG consists of companies in the areas of telecommunication, computing, networking, and consumer electronics.

Vacuum Tube

In electronics, a vacuum tube, electron tube, thermionic valve, or just valve, is a device used to amplify, switch, otherwise modify, or create an electrical signal by controlling the movement of electrons in a low-pressure space, often tubular in form. Many devices called vacuum tubes are filled with low-pressure gas: these are so-called soft valves (or tubes); as distinct from the hard vacuum type, which have the internal gas pressure reduced as far as possible. Almost all depend on the thermal emission of electrons, hence thermionic.
Vacuum tubes were critical to the development of electronics technology, which drove the expansion and commercialization of radio broadcasting, television, radar, high-fidelity sound reproduction, large telephone networks, modern types of digital computer, and industrial process control. Some of these applications pre-dated electronics, but it was electronics that made them widespread and practical; electronics has driven mechanical computers such as slide-rules to the point of obsolescence.

For most purposes, the vacuum tube has been replaced by solid-state semiconductor devices such as transistors and solid-state diodes: for most applications, they are smaller, more efficient, more reliable, and cheaper—either as discrete devices or as integrated circuits. However, tubes are still used in specialized applications: for engineering reasons, as in high-power radio frequency transmitters; or for their aesthetic appeal, as in modern audio amplification. Cathode ray tubes are still used as display devices in television sets, video monitors, and oscilloscopes, although they are being replaced at various rates by LCDs and other flat-panel displays. A specialized form of the electron tube, the magnetron, is the source of microwave energy in microwave ovens and some radar systems.