The NASA Mars Sojourner rover inspired this project
. I followed the mission
with great enthusiasm and witnessed a giant leap in robotics that day
it began roaming the Martian terrain and sending images back to earth.
Though I was in awe when the Viking missions of the 1970’s were in
progress, we didn’t see that near real-time interaction with the craft
The digital economy—defined by the changing characteristics of information,
computing, and communications—is now the preeminent driver
of economic growth and social change. With a better understanding of
these fundamental transformations, we can make wiser decisions—whether
we are investing in research, products, or services, or are adapting our
laws and policies to the realities of a new age.
Although mobile devices, cellular phones, Personal Digital Assistants (PDAs) and other
handheld devices have hardware constraints such as small screen, small storage, low CPU
speed, and low resolution, their popularity has been enormously increasing. This is
enhancing the opportunities for researchers to overcome those open problems caused of
small size hardware constraints. However, still the biggest difficulty is that these devices are
too difficult to load today’s visual information because most current information is based on
a large visual documentation.
Over the last ten years, the impact of wireless communications on
the way we live and do business has been surpassed only by the impact
of the Internet. Cell phones, pagers, and wireless Personal Digital
Assistants (PDAs) have become so commonplace in our lives that it is
easy to forget that ten years ago, they were a rarity.
Nguyễn Tân Tiến
Foreign Trade University
* IT (Information Technology): Công nghệ về máy tính. * PC (Personal Computer): Máy tính cá nhân. * ICT (Information Communication Technology): Ngành công nghệ thông tin - truyền thông. * PDA (Personal Digital Assistant): Thiết bị số hổ trợ cá nhân. * CP (Computer Programmer):
The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology (NIST) promotes the U.S. economy and public welfare by providing technical leadership for the Nation’s
measurement and standards infrastructure. ITL develops tests, test methods, reference data, proof of concept implementations, and technical analyses to advance the development and productive use of
Việc tích hợp các phần mềm GIS, GPS với các thiết bị truyền thông cầm tay … đã hình thành nên khái niệm “Mobile GIS”. Bài báo này trình bày những kết quả đã đạt được trong việc phát triển thử nghiệm một hệ Mobile GIS. Hệ thống được phát triển theo mô hình 2 lớp khách-chủ (client-server). Trong đó ứng dụng phía client được xây dựng trên thiết bị trợ giúp cá nhân kỹ thuật số (Personal Digital Assistants PDA) sử dụng ngôn ngữ lập trình C#.
Have you ever doodled creatures on the edges of the phone book while waiting for directory assistance? How many of you have scribbled on a scrap of paper while sitting in a boring meeting?
I would venture to say that almost everyone has at one time or another spent some time drawing the characters and monsters that populate our minds. For a few of us, this random doodling begins to become something more. We take these random images and expand on them until they are more fully realized.
To the reader who is tired of so much Erkenntnisstheorie I can only say that I am so myself, but
that it is indispensable, in the actual state of opinions about Sensation, to try to clear up just what
the word means. Locke's pupils seek to do the impossible with sensations, and against them we
must once again insist that sensations 'clustered together' cannot build up our more intellectual
states of mind
In modern high-performance liquid chromatography (HPLC), computers in a broad sense are used in every instrumental module and at every stage of analysis. Computers control the ﬂow rate, eluent composition, temperature, injection volume, and injection process. Detector output signal is converted from analog form into the digital representation to recognize the presence of peaks, and then at higher level of computer analysis a chromatogram is obtained. All these computer-based functions are performed in the background, and the chromatographer usually does not think about them.
Phụ lục B : Giới thiệu các chương trình giả lập
over-the-air : thuật ngữ này được dùng để chỉ việc tìm và download các ứng dụng thông qua mạng không dây. personal profile : một profile J2ME được thiết kế để cài đặt CDC. profile : một đặc tả cho tập các lớp ở mức cao của một họ các thiết bị. Một profile cài đặt theo cấu hình của J2ME. Personal Digital Assistant Profile (PDAP) : một J2ME profile được thiết kế để cài đặt CLDC.
INFORMATION TECHNOLOGY AND YOU.
Edward G. Cale Jr.
Amazing though it may seem, the personal computer has only been around for about 20 years. Before 1980 the world of computing belonged to highly trained technical people who worked their wizardry wearing white coats in hermetically sealed rooms. Today kindergarten students use personal computers to learn the alphabet, grade school students use the Internet to research term papers, and on-the-go executives are always in touch with their beepers, Webenabled cell phones, cellular personal digital assistants (PDAs), and laptop computers. ...
Sales assistant: Hi there. Do you need (1) help or are you just looking? Nick: Actually, yes, you might be able to help. I’m looking (2) a new laptop. Have you (3) any that are really reliable? I’ve had loads of problems with the one I’ve got at the moment. Sales assistant: OK. Well, it’ll depend on your budget, but we’ve got two with 20% off at the moment – the Acer Aspire 4920 and the Samsung R60. Nick: Right. And what’s the difference between these two? Do they have similar (4) ? Sales assistant: Well, the Samsung’s more of...
Java offers several beneﬁts that could facilitate the use of wireless Personal Digital Assistants (WPDAs) for the user. First, Java is portable, and that means that it is independent of the hardware platform it runs on, which is very important for reducing the cost of application development. As Java can be run anywhere, the development of applications can be done on a desktop without the need of a real hardware platform.
Complete this conversation in a computer shop by typing in words or phrases from the box.
storage head crash holds read/write back up don’t portable shouldn’t platters should external capacity formatted hard
Sales assistant: Can I help you with anything? Anna: Yes, please. I need a new (1) drive. Sales assistant: OK. Are you looking for an internal drive or an (2) one? Anna: Well, I need it for moving files between home and work. Sales assistant: Sure. Well, you’ve basically got two options. If you need a lot of (3) for secondary (4) , then you could try this Freecom...
Bluetooth is an open standard for short-range radio frequency (RF) communication. Bluetooth
technology is used primarily to establish wireless personal area networks (WPAN), commonly referred to
as ad hoc or peer-to-peer (P2P) networks. Bluetooth technology has been integrated into many types of
business and consumer devices, including cellular phones, personal digital assistants (PDA), laptops,
automobiles, printers, and headsets. This allows users to form ad hoc networks between a wide variety of
devices to transfer voice and data.
The following extracts come from sales assistants in computer shops describing the features
and functions of various input devices. Complete the sentences by typing in words from the box and then choose which device they’re talking about from the drop-down menu.
to can which allows used by features
Complete these descriptions of assistive technology for deaf users with the correct terms.
Choose from the drop-down menu.
1 a system error. 2 3 allow deaf users to make calls by typing and reading. are used in meetings to summarize what is being said. help deaf users see when they have new email or when there has been
The personal digital assistant is the main control unit of the robot, communicating
with the craft’s body via a beam of infrared light and to
other machines on the wireless network. The PDA itself becomes a data
transponder. It (the PDA) is insulated and protected from the robotic
interface. It is said to be optically isolated, communicating on ripples
of light. Because of this design, no connectors are required and the software
provided will work with any Windows or PalmOS driven handheld