PDA's connect to the PC through three types of connections. They can connect via a USB cable, a Serial cable and through Bluetooth connections. Bluetooth connections are becoming more popular for portability.
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PDA's are typically not waterproof. You can, for some PDA's, buy waterproofing kits, however.
Yes PDA's are ideal for WiFi and connecting to the internet, it is one of their big selling points.
The most common forms of PDAs are Smartphones, palm PDAs and pocket PCs.
A PDA would only include NOS components if they were designed to work on a network, particularly wireless networks. The more inexpensive PDAs do not do that, and have no network software. The higher end PDAs will have the required software in order to connect to a network.
Handheld PDAs are available from Amazon. Alternatively you can purchase handheld PDAs from eBay and other online sites new. You can also buy them second hand from Gumtree.
In my opinion, Blackberry and Palm make the most functional PDAs
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There are many different models of color handheld pdas. However, the first few models were the Palm and the Newton.
A USB to serial cable is used to connect a device to the computer's USB port. Examples of devices that might be connected in this way are digital cameras, modems and PDAs.
No, PDAs do not have gears in them.
the year was 1975