In database management, a relationship between two files. The parent file contains required data about a subject, such as employees and customers. The child is the offspring; for example, an order is the child to the customer, who is the parent.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- FBI warns 'electronic Pearl Harbor' possible
- FBI warns 'electronic Pearl Harbor' possibleWake Up!Just when are the public and the goverment ever going to realize that there is ABSOLUTELY ZERO SECURITY when it comes to computers? It makes no sense for banks and any goverment agency to have their networks connected to the internet. How many more...
- Discussion threads 2008-08-28
- The depressing future of the Internet
- A brief overview of how the Internet came about: some years ago, some military boffs thought it'd be awesome if computers could talk to each other, so the US could nuke the hell out of other countries without actually being near there. A smart professor from England then came up...
- Blog posts 2008-08-28
- Guns n Roses leaker faces prison time
- Guns n Roses leaker faces prison timeI think it should be a civil matter, myself......but if Congress made it a felony, then we can't blame the US Attorney if he takes prompt action. No sympathy for the leaker.BTW: I really didn't want or need to see the cover photo....
- Discussion threads 2008-08-28
- What's in IE 8 for enterprise users?
- What's in IE 8 for enterprise users?The biggest thing in IE8 for the enterprise: continued compatibilityproblems and continued foot dragging on the standards front. Also very slow JavaScript. Much slower than the already released version of FireFox, Opera, and Safari. Pretty sad . . . .RE: What's in IE 8...
- Discussion threads 2008-08-28
- SaaS market will 'collapse' in two years
- Lawson's CEO, Harry Debes says SaaS is the third attempt at "on demand" in his lifetime and predicts it will take the same path as the first two--to oblivion. Lawson's CEO, Harry Debes, doesn't believe in software-as-a-service SaaS. ...
- News items 2008-08-28
- How do we address the have-nots?
- How do we address the have-nots?It's the NetThe problem is no longer the availability of hardware: many computers are being dumped that can easily be made productive again, by installing a lean Linux on it like Xubuntu. So poor people can have a fine computer for free. That's easy to...
- Discussion threads 2008-08-28
- How do we address the have-nots?
- I attended a leadership summit on Monday (it was actually pretty good stuff, with concrete plans, goals, and generally more than you get out of your average bit of professional development) and, not surprisingly, a serious focus was on technology. I think people are finally realizing that, while technology...
- Blog posts 2008-08-27
- NPR feature on OLPC - what went wrong?
- Since tomorrow is the first day of school and I'm going completely out of my mind, I figured I'd just give you a quick link to an NPR feature on the One Laptop Per Child program that aired on Morning Edition today. As the piece points out, ...
- Blog posts 2008-08-27
- Tech policy and presidential politics: Is it a vote getter?
- Welcome to the week that is the Democratic National Convention followed by another one with the Republican National Convention. We'll get coverage out the wazoo with a heavy dose of the technology implications from our sister site and parent, News.com and CBS News, respectively. While the technology policies of Barack...
- Blog posts 2008-08-25
- It looks like HTC made the Palm Treo Pro
- It looks like HTC made the Palm Treo Proyou think this is a good thing?When I see the specs for the treo pro I see tired, old, and sad specs. I see a worthless PDA that would lose a fight to even the cheapest knock-off PDA found on the...
- Discussion threads 2008-08-22
- Flouridation, vaccination, TV, Internet?
- Flouridation, vaccination, TV, Internet?Vaccinationnot everyone needs to be protected. All you need to do is vaccinate a sufficient percentage of the society to reduce the vector below a critical threshold. No one really knows what this value is, but most agree it's between 90 and 95% of the general population.The...
- Discussion threads 2008-08-22
- Worker suspended over loss of data on all English prisoners
- An employee at Home Office contractor PA Consulting has been suspended after the loss of a memory stick holding the unencrypted details of every prisoner in England and Wales. A staff member at PA Consulting Group has been suspended after the contractor lost details on all prisoners in England...
- News items 2008-08-22
- Typosquatting the U.S presidential election - a security risk?
- Typosquatting the U.S presidential election - a security risk?Surely.If the RIAA is able to prosecute people for allegedly 'making available' a few music files then why are these 'cyber criminals' not pursued so vigorously? After all your average file sharer is not making any money out of it. ...
- Discussion threads 2008-08-21
- Suit over baby vid with Prince song goes forward
- Suit over baby vid with Prince song goes forwardA waste of her time and money.Is this video so important to her that she can't just repost it every time it gets taken down but has to have it up there forever?She's wasting her time and money, and the court's time...
- Discussion threads 2008-08-21
- Intel chairman pursues passions
- ZDNet correspondent Sumi Das speaks with Craig Barrett at the Intel Developer Forum about his quest to introduce technology as a means of advancing education in developing nations. Barrett gives us his take on the so-called feud between Intel and One Laptop Per Child, defends Intel's bullish stance on...
- Videos 2008-08-21
- FCC issues 'radical' order re: Comcast
- FCC issues 'radical' order re: ComcastInstead of throttling ...... the ISPs could monitor the average bandwidth per month up and down per user. The billing could be done on a bandwidth basis ... If one user is using a lot more bandwidth, then their bill will be a...
- Discussion threads 2008-08-21
- About Atom: Intel's big plans for its little chip
- One of the bolder goals Intel set at IDF this week is that within a decade it wants ship 1 billion Intel-based mobile computing devices each year. That's a big bet when you consider Intel estimates there will be a total of 163 million notebooks shipped this year. ...
- Blog posts 2008-08-20
- FCC issues 'radical' order re: Comcast
- The FCC has released its formal decision PDF against Comcast, ordering it to stop throttling BitTorrent traffic. As Wired's David Kravets views it, it's an open invitation for ISPs to censor content – so long as they're protocol-agnostic about it. Calling the decision "vitriolic," Kravets says:...
- Blog posts 2008-08-20
- Feds bust P2P-based kiddie porn ring
- Feds bust P2P-based kiddie porn ringI have many waysthere are many ways of dealing with these peoplewithout death being the punishment, they'd wish they were dead.RE: Feds bust P2P-based kiddie porn ringThey should take everyone of them out and hang them. Don't let their neck snap but let them down...
- Discussion threads 2008-08-20
- Oh, really? Report says techies don't care much about salary.
- Oh, really? Report says techies don't care much about salary.Location mattersIt really depends on who you ask and where these techies are. I bet techies working in NYC are either after high pressure environment or $$$, whereas techies working in Hawaii would be more interested in *surfing*...There's a good deal...
- Discussion threads 2008-08-20
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