Mobile Devices

Mobile or PDAs Devices:

          

PDAs Devices

              Finally having a few computing essentials on hand at all times eases the day and makes planning and scheduling much more likely to succeed. Several companies, such as Palm top, Sony, Toshiba, Hewlett-Packard (HP), and Microsoft manufacture tiny hand held portable computing devices that hold data such as your address book, personal notes, appointment schedules and more, such machines are called personal digital assistant (PDAs). All modern PDAs have many applications, such as word processors for crawl down notes or shopping lists, expensive reports, and even image viewers. PDAs don’t run windows XP or even 98, but rather require specialized OS and Linux. All of these Oss provide a GUI than enables you to interact with the device by touching the screen directly. Many of today’s PDAs handwriting recognition combined with modified mouse functions, usually in the form of a pen like stylus to make a type of input called pen based computing. To make an application load for example, you would slide the stylus out of its holder in a PDAs case and touch the appropriate icon with the stylus tip.

  PDAs Memory

        

    Almost every PDAs has both internal flash ROM memory of I MB or more, and some sort of removable and up gradable storage medium. Compact flash (CF) technology has the strongest market share among the many competing standards, but you’ll find a bunch of different memory card types out there. CF popular media include the much smaller secure Digital cards and Sony’s proprietary Memory Stick. You’ll find capacities for all standards ranging from 8 MB up to 512 MB- on a card the size of stamp! Figure below shows some typical memory cards.

Memory Cards

            

        Memory cards of all stripes made the leap in 2003 from the exclusive realm of tiny devices such as PDAs and digital photographic cameras to fully featured portable PCs and even desktop models. Some Panasonic PCs sport SD slots, for example, and you can expect nearly every Sony PC portable or otherwise made in 2003 and later to offer a memory stick port.