Category Archives: Technology

How to Choose Your Computer, Server, PC

There are some important factors that determine how computer works. Those important factor should be known by customer in order to choose right product that suits their need. Here, i will write down some important factors that drive computer performance :

1. Processor Core : Core number is the number of processing unit that is used in processor. The more number of core processor has, the better the computer performs applications. It is also expected to result in better multitasking process.

2. Clock Speed : Clock speed is frequency clock in one second. Higher the number of clock speed, Faster the processor performs calculation/process. It is usually written in GHz. This clock speed always affects processor temperature and power used by computer.

3. FSB (Front Side Bus) : Front Side Bus is the main channel that bridges processor and RAM. FSB is written in MHz. It reflects data rate between processor and RAM.

4. Cache Memory : It is high speed memory that is used to save important data, data that is used frequently by processor. So processor doesn’t need to access RAM directly to perform memory operation. The number represented by L1, L2, L3, which means Level, higher number of cache memory can be used as indicator for better performance.

5. Heat Sink & Cooling Fan, and Power consumption (for PC and Server)

6. Socket and Processor Generation : Socket architecture is important when you consider to change your processor. Different socket can’t be used to place any processor because its different architecture. Processor Generation reflects in technology used, newer processor generation comes up with more sophisticated technology, and better performance.

7. RAM (Random Access Memory) : Higher the RAM and FSB, faster the data rate between harddisk and processor.

8. Harddisk / Disk Storage : It is devais where permanent data is saved. Now it is represented in GB, Gigabyte. Bigger GB, Bigger room for large file :).

9. VGA :  is an expansion card which generates a feed of output images to a display. It offers function such as accelerated rendering of 3D scenes and2D graphics, video decoding, and TV/multiple output. It is usually represented in video memory and clock rates. As usual, higher is better, but of course you should consider other factors above.

Those are some important factors to choose your computer 🙂

credits : http://wikipedia.org

 

VLAN Tagging Switch HP Procurve

LAN Select the VLAN to configure.
Tag / Untag / Exclude All. For a port or trunk to participate in a VLAN, its tagging policy must be defined. By default, all ports and trunks are configured as untagged members of VLAN1, and are excluded from all other newly created VLANs.
You can use the Tag / Untag / Exclude All box to configure all ports at once. Click this box until the appropriate options displays:

E — exclude all ports from this VLAN.
T — participate in the selected VLAN and tag all frames.
U — participate in the selected VLAN and leave all outgoing frames untagged. Each port can have only one untagged VLAN membership. If a port is an untagged member of a VLAN and a second VLAN is selected for untagged membership, then the first VLAN membership is automatically changed to E (Exclude).
Then, you can use the Port boxes to refine the ports participation and tagging settings.

Enable Facebook Timeline

Facebook timeline is the newest facebook feature that will display “timeline” on our profil page. This timeline is also accompanied with new facebook “cover” it is your image that will be put like a header page on websites. Facebook timeline divide our profil page into two coloums. These coloums are separated by vertical line right in the middle, this vertical line points to specific events, or wall, or your activities in newest to older order. Facebook timeline also put small timeline menu in the upper right of our profil page, we can go to any specific time in the past to see our older facebook activies. Facebook timeline will soon be realease for all, but by the time this article is posted it is only available for developer.

facebook timeline
facebook timeline

here is the post from facebook about facebook timeline :

http://www.facebook.com/about/timeline

and for you who don’t patient enough to wait you can enable facebook timeline by following intructions on this link, enjoy.

http://techcrunch.com/2011/09/22/how-to-enable-facebook-timeline/

Blackberry Qwerty Plus Minus

Well this post is just experience sharing, it’s not technical review so just read it as a story from someone who comes from old handphone with usual keypad.

plus
1. qwerty keypad will enable you to type faster
2. suitable for email
3. easier to use when u’re not moving
4. it’s just like keyboard, if you re familiar with, using qwerty keypad may become fun

blackberry bold
blackberry bold

Continue reading Blackberry Qwerty Plus Minus

Uninstall Backtrack 5 Dual Boot Win 7

it’s not uninstall actually, hha just simply delete it.

after a month i tried to use backtrack 5, i found out that my disk space allocated for backtrack 5 was nearly empty, 10 GB was too small. So i’d like to add new disk space, but i haven’t found the way to do it. I came up with uncool steps.

1. Remove old backtrack installation
2. Reinstall backtrack with new disk space allocation

to remove backtrack installation, which is dual booted with windows 7, i have to make sure my windows 7 can still work well. after googling, i got the message to do fixmbr to recover windows 7 boot manager. so here are the steps.

A. Fixing windows 7 boot manager
1. prepare your win7 installation disk (dvd/usb), plug it in.
2. start your computer, set the boot priority from bios setting (first boot usb, or cd/dvd room)
3. when windows 7 installation comes up, choose repair
4. choose repair this computer with recovery tool, click next
5. choose command prompt
6. enter this command

[php]bootRec.exe /fixmbr[/php]

7. reboot your computer

B. Remove backtrack
1. now your computer should start the win 7 automatically
2. go to control panel > System and Security > Administrative Tools > Computer Management > choose Disk Management (under storage properties)
3. u will see clearly your computer partitions, delete your backtrack partition by right click > delete Volume
4. after it is deleted you will have new disk space and u can expand your other windows partition.

partition manager
computer management windows 7

that’s all