Komputer tips

In web designing nice fonts are essential.If you just moved your CSS to an external file then you need to add the web-fonts to your blog or website again.Or if you have a self hosted website and you need to add more fonts to your website then you should follow this article.Clean and nicely matching fonts will give your website or blog a professional look. CSS Web safe fonts Before adding web fonts you should know about web safe fonts.These fonts can be found in every system.So your website or blog can be displayed correctly in almost every system in the world.But these fonts are limited.If you don't link the correct style sheet for your web fonts the browser will automatically show a web safe font by default like Arial,Times New Roman.Web safe fonts are the fastest fonts as it doesn't needed to be downloaded from internet.So before adding a web font check out CSS web safe fonts too. Here's a list of CSS web safe fonts. Adding Google Web Fonts  Well this i...

If you are a photographer you would use either Photoshop or Adobe Lightroom to edit your photos. Many photographers edit there photos one by one which could take up to hours or days.Adobe Lightroom can eliminate that time waste easily.If you're editing a bunch of photos like 20-100 you could use a preset, so in this tutorial I'm going to show you how to create your own preset. #1. First import your photos and start editing.Apply all the adjustments and settings you want.   #2. After your done editing in the left corner there's a tab called preset. Right next to it there's a plus sign (+) click it. #3. After that a new window will appear.The settings you just applied to your photos will be displayed in it. Select the settings that you need in your preset and click create. #4. After that at the bottom of the presets window you can see the 'User presets' folder.Click on the arrow left to it.The list will collapse.And you can see t...

Inline style are the major barrier between good SEO score and your blog.Inline styles make the code too big, so how long you write the code to text ration won't rise up.In blogger, inline styles are used by default.But most of the websites on internet use external style sheets as they are self hosted and the designers are very likely to use external CSS.Sometimes Blogger use internal styles.You can learn the difference between Internal CSS,Inline CSS and External CSS from W3 schools .Read this article on Inline VS External CSS . Probably you may have tried copying CSS between <b:skin> tags of your Blogger blog.If you tried that you already know that it doesn't work.Because Blogger has more CSS coding that won't show in Template>Edit.So to find the real exact CSS code of your blog follow these steps.For this tutorial you need a Google Drive account,if you have a Blogger account you may already have one.If you don't have a Google Drive account create one now...

This is a 10 LED chaser using NE555 timer and 4017 decade counter.You can use upto 15vin this circuit.If you want to use filament lamps or high power LEDs use transistors at the outputs to amplify the current.The output of the circuit as below. The speed of the LEDs can be changed by using the potentiometer.And it depends on the value of C1 ,R2 and R1 too.Change values to get your desired speed.Higher the value of C1 slower the LED chasing speed.You can reduce the number of outputs by connecting the pin 15 reset of 4017 to a output pin of 4017.For an example let's say you just want 5 outputs then connect the pin 15 to the pin 1. PCB solder side and Component Side.Print at 300 DPI using a laser printer on a photo paper.Do not change any other settings. For assistance in making PCBs please visit my article on  How To Make PCBs at Home

The circuit above can control speed of your DC motors or Computer Fans.If you use this to control speed of DC motors please use a diode to protect the Transistor,brush-less fans -OK.You can change the variable speed range by changing the value of R1 potentiometer.But don't use very high values,its pointless. The transistor used here is a NPN 2n3055,it can handle up to 15A and 115W of power.And this transistor can handle up to 60V.So if you're using this for PC fans you can add more in parallel.Normally a computer fan uses about 0.4W of power.Some powerful ones may use about 7W of power.If you don't use so much power then you can use a low power transistor like C1061,D313 etc. If you don't want to change the speed too often or hard to find a potentiometer or just willing to make this out of scrap you can use a Trim resistor for R1. The transistor may heat up very much and its essential to use a Heat sink.If you can,do not solder the transistor to the PCB s...

Actually these are temporary files so the title should have been how to delete temporary files in Windows 7.Now windows 7 is getting older and older so it has to download so many updates from Microsoft to work with latest softwares and devices.When you set to update and install drivers automatically in wondows 7 it will download all the updates needed and install them,you don't have to worry.But the problem here is windows forgets to delete those files after installing them so a large number of unwanted files are saved in your system you don't even know! So we have to delete those temporary files.Its very very easy and you don't need any DOS skills or any programming knowledge.But before deleting those files I think that you can save those files somewhere else on a USB drive or a DVD to use them later.So you don't have to download update files every time you re-install windows.Or you can use these files to update your friends PC![Never tested though] Now lets get ...