Main > Technology > Computers > Programming > Delphi
Vista-ready: Old Delphi Applications can be upgraded for use with Windows Vista through the use of a Task Dialog unit ( link ), a tool like "xptheme", and, if necessary, a manifest file to instruct Vista's User Account Control system what kind of privileges your application requires. More info on Vista and Delphi is here: link .
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Main > Technology > Computers > Operating systems > Windows
Speeding up Windows:
Turn off system restore. Only do this if you are an experienced user and keep regular backups.
Defragment your disk.
Install more memory (RAM). For XP, you should have at least 1GB, for Vista, at least 2Gb.
Prevent unneccessary programs from starting at boot-up.
View PDF files with a program like "Foxit reader", instead of Acrobat reader.
Use XP instead of Vista, unless you have a very fast system.
Kevin Solway (173)
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Main > Technology > Computers
Cleaning: Every three months, vacuum out the dust from around and inside your PC. Too much dust greatly increases the chance of component failure.
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Main > Technology > Computers > Computer hardware > Video Cards
There are many cheap video cards on the market but the cost you often pay is that you will have a darker or duller display with less detail. It's not worth the small saving.
myxlfidian (150)
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Main > Technology > Computers > Programming > PHP
Variable functions: In some cases you might want a user to choose which function to apply on some values. You can use a variable to call the function. e.g.,
<?php
function sum($v1, $v2) { return ($v1 + $v2); }
function minus($v1, $v2) { return ($v1 - $v2); }
$function = "sum";
print $function(10,5).'<br>';
$function = "minus";
print $function(10,5).'<br>';
?>
It's essential that you use the same number of parameters.
Kevin Solway (173)
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Main > Technology > Computers
Backup your work! Simply keep a copy of everything that is important to you. Buy a second hard drive to back up everything on your first one. And you should frequently burn a DVD containing your most important files and send it to a relative or neighbour for safekeeping away from your home.
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Main > Technology > Computers > Programming > Javascript > Cross-browser compatibility
When setting an attribute of an html element (e.g. one created using document.createElement()) do not use the syntax:
element.attribute = value;
because it fails on some browsers, notably Konqueror as of 21/04/2007. Instead use the syntax:
element.setAttribute(attribute, value);
Laird Shaw (4)
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Main > Technology > Computers > Programming > Html
- Use the alt="" attribute on the img tag.
- Do not use the <blink> tag, it is annoying.
- Always Specify a !DOCTYPE.
- Always have some sort of contact ie. email address.
- Use the same colours/layout for each page
(so people know they are on the same site).
- Always check all your links after you create
them to avoid having broken links.
[guest]
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Main > Technology > Computers > Programming > Html
- Avoid using HTML Frames, they can be annoying
and search engines don't like them.
- Make sure you can get to the home page of your
site from anywhere on your site.
- Try not to use any popups for advertisment,
everyone hates them.
- Always keep you site nice and simple to use.
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Main > Technology > Computers > Programming > Html
The best way to learn HTML is by example, and your browser is your best teacher! Whenever you are surfing and see something you like, click on your browser's choice to View Source.
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Main > Technology > Computers > Programming > Html
Validate your html to make sure it conforms to the standards by using an online service. link
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Main > Technology > Computers > Programming > Html
The best way to control your layout and spacing of elements is to use CSS (style sheets).
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Location: Place wireless router in a central location in your home.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Directional antennas: Use of a directional antenna, rather than the standard omni-directional one, will make the signal stronger in one direction.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Extending the range: Use a wireless repeater to extend the range of your network. The brand of the repeater may need to match the router for best performance. And when using a repeater, you can expect reduced throughput speeds.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Matching brands of hardware: If the brand of your router matches that of your network adapters, you may get better performance.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Trying different channels: You can try changing your wireless router's channel through your router's configuration page to see if your signal strength improves.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Avoid interference: To quiet the noise, avoid wireless electronics that use the 2.4GHz frequency. Instead, look for cordless phones that use the 5.8GHz or 900MHz frequencies.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Usernames and passwords: change the default administrator passwords and usernames for the access point or router. The defaults are well known to hackers on the Internet. Manufacturers provide Web pages that allow owners to enter their network address and account information.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Encryption: turn on encryption. All Wi-Fi devices on your network must share identical encryption settings.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
SSID: change the default SSID. Access points and routers all use a network name called the SSID. Manufacturers normally ship their products with the same SSID set.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Enable MAC Address Filtering: Each piece of Wi-Fi gear possesses a unique identifier called the physical address or MAC address. Access points and routers keep track of the MAC addresses of all devices that connect to them. Many such products offer the owner an option to key in the MAC addresses of their home equipment, that restricts the network to only allow connections from those devices.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Disable SSID Broadcast: the wireless access point or router typically broadcasts the network name (SSID) over the air at regular intervals. This feature was designed for businesses and mobile hotspots where Wi-Fi clients may roam in and out of range. In the home this roaming feature is unnecessary, and it increases the likelihood someone will try to log in to your home network.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Don't auto-Connect to Open Wi-Fi Networks: connecting to an open Wi-Fi network such as a free wireless hotspot or your neighbor's router exposes your computer to security risks. Although not normally enabled, most computers have a setting available allowing these connections to happen automatically without notifying you (the user). This setting should not be enabled except in temporary situations.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Assign Static IP Addresses to Devices: Most home networkers gravitate toward using dynamic IP addresses. DHCP technology is indeed easy to set up. Unfortunately, this convenience also works to the advantage of network attackers, who can easily obtain valid IP addresses from your network's DHCP pool. Turn off DHCP on the router or access point, set a fixed IP address range instead, then configure each connected device to match. Use a private IP address range (like 10.0.0.x) to prevent computers from being directly reached from the Internet.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Firewalls: Ensure that your router's firewall is turned on. For extra protection, consider installing and running personal firewall software on each computer connected to the router.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Location of access point or router: if you place this device centrally, the extent of the signal being broadcast outside your home will not reach so far as it would otherwise.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks > Security
Turn off the network: if not using it for extended periods of time.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Update your firmware or your network adapter driver: Router manufacturers regularly make free improvements to their routers. Sometimes, these improvements increase performance. To get the latest firmware updates for your router, visit your router manufacturer's Web site. Similarly, network adapter vendors occasionally update the software that Windows XP uses to communicate with your network adapter, known as the driver.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Modem: If you want the router to be connected to the Internet even when all your computers are turned off, your broadband modem will need to have a network/ethernet socket. Some USB modems do not have a network/ethernet socket.
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Main > Technology > Computers > Laptops > Mobility > Ergonomics
Ergonomics: Ideally, for comfort, a computer's screen and keyboard should be separated. With laptops this is not the case. Laptops were not designed to be used for long periods of time. A laptop is best used on your lap.
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Main > Technology > Computers > Laptops > Mobility > Ergonomics
Keyboard and mouse: If using the laptop on a desk, as though it were a desktop computer, use a separate keyboard and mouse which you can plug into the back of your laptop. Use a separate monitor as well if you can!
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Main > Technology > Computers > Laptops > Performance & maintenance
Conserve battery power: by dimming the screen, and by turning off automatic bluetooth and wireless network detection. Minimize use of the CD or DVD drive. Remove all PC cards from their slots when not in use. Use your laptop's built-in power management system and select low-power mode. "Suspend" rather than reboot if you're only taking a short break.
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Main > Technology > Computers > Laptops > Mobility > Security
Secure your data: While you're out and about and on open wireless networks, make sure you've got a secure firewall installed on your laptop and that its settings are very restrictive.
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Main > Technology > Computers > Laptops > Performance & maintenance
Back up your data: Portable computers deal with a lot more wear and tear than desktops, and this increases the risk of hard drive failure. So make sure you back up the data you keep on your laptop. If you've got a CD-R or DVD-R drive in your lappie, keep a few spare blanks or a USB drive for easy backup on the road.
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Main > Technology > Computers > Laptops > Hardware
Useful extras: 1. A extra, charged-up battery. 2. A two to three prong electrical plug adaptor might help in places where your three prong plug needs to go into a two prong outlet. 3. An ethernet cable or phone cord or an extra mouse might be a helpful addition to your portable arsenal.
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Main > Technology > Computers > Laptops > Hardware
No printer?: Use your electronic fax software to send a fax to the hotel fax machine. Then pick up your docs at the front desk.
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Main > Technology > Computers > Laptops > Performance & maintenance
Overheating: Avoid placing your laptop on soft surfaces. This will block the air vents and overheat your system.
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Main > Technology > Computers > Laptops > Mobility > Security
Airports: Never check your laptop computer as luggage on an airline, bus, etc. Always carry-on your laptop computer to avoid damage and theft. Keep your laptop in hand at all times when in public areas. Be extra careful in busy locations like airports, where many laptop computers are stolen.
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Main > Technology > Computers > Laptops > Mobility
Long flights: sometimes there is a hot 110 Volt/AC outlet right in front of each exit door in the outside wall (eg, Boeing 747s) where you can plug in your notebook's A/C adapter and work/play the hours away without worrying about batteries.
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Main > Technology > Computers > Laptops > Mobility
Receipt: Take your purchase receipt along if you're traveling to a foreign country. This way you can avoid paying import tax if a customs agent challenges you.
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Main > Technology > Computers > Laptops
Serial number: Make a note of your laptop's serial number and store it in a safe place.
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Main > Technology > Computers > Laptops > Mobility > Security
Security cable: Use a security cable lock (fits into the laptop's keyhole) and fix it to something sturdy and immovable anytime you're not with your laptop, or if you fall asleep in an airport lounge.
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Main > Technology > Computers > Laptops > Performance & maintenance
Surge protector: Always use a surge protector when plugged into the mains.
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Main > Technology > Computers > Laptops
Make it easy: Use keyboard commands whenever possible.
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Main > Technology > Computers > Laptops > Mobility > Ergonomics
Avoid strains: Carry the laptop in a backpack instead of a shoulder or handbag.
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Main > Technology > Computers > Networks > Networks & connections > Wireless networks
Modem and router in one: If you don't already own a modem, it is simpler and cheaper to get a wireless router with a built-in modem.
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Main > Technology > Computers > Internet > Ebay
Try stuff out: If you don't like an item you bought on ebay, simply sell it on ebay again.
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Main > Technology > Computers > Internet > Ebay
Selling item title: When selling an item, pay most attention to the title of the item you are selling. Make sure it contains all the keywords a buyer might be looking for.
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Main > Technology > Computers > Internet > Ebay
Check prices: Find out what kind of price similar items, or the same item has been selling for, by going to "Advanced Search" and then place a check mark in the "Completed items only" checkbox.
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