My Technical Notes » Hardware

Linux : How to test microphone with Audio Linux Sound Architecture

kartook — Wed, 31 Mar 2010 07:01:55 +0000

How to test microphone with Audio Linux Sound Architecture – ALSA

1. List of sound devices 2. Test MIC 3. Play test-mic.wav

Sometime a need comes to test microphone for use with VOIP applications such us Skype. The simplest and easiest way to test microphone ( MIC ) on your linux system is to use default alsa tools which come [...]

Free Tool : GParted partitioning hard disks

kartook — Thu, 17 Dec 2009 13:01:40 +0000

GParted LiveCD is a business card-size live CD distribution with a single purpose – to provide tools for partitioning hard disks in an intuitive, graphical environment. The distribution uses X.Org, the light-weight Fluxbox window manager, and the latest 2.6 Linux kernel. GParted LiveCD runs on most x86 machines with a Pentium II or better.

After Boot it [...]

gadgets : Onkyo DX dual-screen laptopOnkyo DX dual-screen laptop

kartook — Sat, 12 Dec 2009 05:53:08 +0000

Dual-screen laptops or netbooks are the current trend, all simply because we need more screens to cope with our busy life. Here comes another dual-screen laptop, the Onkyo DX, which looks very close to what the few dual-screen laptops that we’ve seen before.

The Onkyo DX features two 1,366 × 768 10.1-inch LCD screens. Under the hood [...]

Why hack a calculator?

kartook — Sat, 24 Oct 2009 14:54:52 +0000

Why hack a calculator?

So you’re a programmer deciding where to invest your energy. What’s a better idea: the latest Apple device, where hot new games can mean big bucks and millions of users, or a calculator introduced 10 years ago?

Most go for iPhones and iPods. But another community thrives in its own way. These are the [...]

The perfect server room?

kartook — Fri, 10 Jul 2009 12:42:34 +0000

Hi i got a chance to think about Data center design .But i searched and i got few notes to make good data center . kindly update the details more about perfect data center Enough space for expansion Plenty of network ports Sufficient network bandwidth Plenty of dedicated power sockets Should not be on the ground floor (risk of flooding [...]

Dell PowerEdge 2950 Server Power Requirements

kartook — Thu, 21 May 2009 09:52:17 +0000

Dell PowerEdge Server Power Requirements

Question: I have several Dell PE2950 Servers and several 20A Powerstrips, my facility provides 120VAC. How many PE2950’s can I plug into the 20A Powerstrip without tripping the breaker?

Answer: The Dell PE2950 has a manufacturer’s rating of 750W, however this rating can vary by +/- 20% depending upon the operating efficiency of [...]