Nevertheless, the transformation of the county fair into a supermarket is taking longer than originally anticipated. Use of the Internet for economic exchange clashes with the culture of freely available information, absence of a central authority, and the legitimate concerns regarding the security of information on the network. Security on the Internet is an afterthought; […]
The automation and dematerialization of monetary exchanges are not objectives per se, but are solely means to improve the productivity of financial institutions. In this regard, an overabundance of standards, and sometimes their competition, may constitute a barrier to the establishment of electronic commerce. Even if some manufacturers think they can profit from this situation, […]
Throughout the history of the United States, one of the greatest political tensions has been that which balances personal privacy against the need for law enforcement to protect individuals and the country as a whole.
That tension has been with us from the very earliest days of the Republic. The Founding Fathers were extremely cognizant of […]
In this section we will build a very basic front end that makes a connection to our database, validates a user’s login, and retrieves (searches for) data. Although this is just a start, it will provide the building blocks you need to develop it further for your own needs.
This unlike the others, is more like […]
How do we know if we have any rows in a table? We use the COUNT function to return a count of the number of rows in a table. If you enter Listing into Query Analyzer we can check the data insert for the Spy table.
This will return the current number of rows (well actually […]
If you ask a typical consumer about wireless communications, you might hear about Wi-Fi or wireless Ethernet, but it’s just as likely that cell phones, smartphones, or PDAs with onboard wireless networking would also be part of the conversation. These devices offer web browsing, email, video and still image capture, and text messaging, and they […]
Next the wizard asks you where the database files for the Active Directory should be stored. It is suggested that you put these files on a disk other than the one that holds the operating system. This increases performance, because both the operating system and the Active Directory, in a larger network, will probably be […]
Master Maps
The automount daemon uses the master map to obtain a list of maps. The master map also contains mount options for those maps. The master map file is usually named /et c/ auto .master. The syntax for the entries in this file is as follows:
mount-point map [mount-options]
mount-point is the pathname of the local directory […]
There is a variety of e-mail readers in which the e-mail may be displayed, so we need to check that the e-mail template designers have designed the HTML such that it is rendered as intended in as many of these as possible. We have to consider both web-based e-mail readers and e-mail reader applications.
Of the […]
Sending someone an instant message is the online equivalent of walking up to someone on the street and starting a conversation. If it’s someone you know, it’s one thing; if not, it’s usually an intrusion.
Unless you have a compelling reason, don’t send instant messages to people you don’t know who haven’t invited you to do […]
Windows XP comes with the latest instant messaging program, called Windows Messenger. Microsoft noticed that this was a niche in which they didn’t have the dominant program, and so decided to issue everyone a copy of theirs. Windows XP nags you to sign up for a Microsoft .NET Passport, a free account that you use […]