Principle of a server If you do not know what to do with your old computer, you must know that you can give it a new feature : turning it to a server. The principle of the server is to be permanently connected to the Internet to provide a particular service. This can be for example a Web server that will store your pages and make them accessible on the net. Indeed, it is not necessary to have a … [Read more...]
How to clean dust from a laptop
Disassemble the laptop When a desktop PC unit makes noise, we open the cabinet and dust off the fans. They can also be change with those that are quieter. The problem with laptops is that it is very difficult to disassemble. Indeed, to access the fans often requires removing several components and of course remember to order them back then. It is possible to do so, but be careful and be very … [Read more...]
Can we recover deleted data?
Builders and Microsoft Windows do not agree on what is one a megabyte or a gigabyte. For manufacturers of hard drives, 1 GB = 1000 MB, 1 MB = 1000 KB, etc. For Windows, 1 GB = 1024 MB .. 1MB = 1024 KB, which induces a difference in the size calculations. Windows sees 465 GB, but by counting the bytes one by one, there are many 500 105 216 000 bytes, so its a 500 GB hard drive as per … [Read more...]
Manage your projector presentation in Windows 7 via Windows Mobility Center
This tutorial is primarily written on request of Dr.Arpita Sarcar, she feels that, managing projectors in seminars is tad difficult work. It is not a problem at all, infact with a Windows 7 laptop, you can boost the quality of your seminar presentations. This guide will tell you, how to enhance yet easily use projector in Windows 7 laptops using Windows Mobility Center. Switch on your laptop. … [Read more...]
Methodology hackers use for an intrusion to a network
This article aims to explain the methodology generally used by hackers to break into a computer system. It does not explain how to compromise a system but to understand how it may be better able to withstand them. Indeed, the best way to protect your system is to proceed in the same way that hackers to map the vulnerabilities of the system. So this article gives no details on how vulnerabilities … [Read more...]
What is a server?
A Server is generally a computer that makes its files available to other computers (in a network). The great thing about a server is that it stores files centrally and all users of the network can use these files together. Because the server files containing primarily holds, it is also called File Server, at least, especially when a company is operating within the server and saves documents. A … [Read more...]
Overclocking
The purpose of overclocking The overclocking is done to increase the clock speed of your processor (CPU) which increases the overall speed of your computer. We must be careful because it represents a danger to your computer components that may not withstand the blast and burn. There are two ways to change the speed; by changing the multiplier or directly to the system bus. For … [Read more...]
What is firmware of hardware
What is firmware? When you use a DVD player or any hardware, it is guided by software that can be compared to a driver for a component in your computer. This software is called firmware. It can manage the device on which it is installed. That will contain the necessary codecs to play, DivX video for example. Like any software, it needs to be updated. That is why it is on a ROM that can easily … [Read more...]
3D scanning provides access to the material and the internal structures of objects
With the three-dimensional imaging, a technology increasingly growing, it is possible to see old insects of several tens of million years or a 2700 year old lemon, destroyed during a funeral rite. Thanks to recent technological advances in three-dimensional imaging, it is now possible to speak of the samples retained by the paleontologists. If, hitherto, it was impossible to see inside of … [Read more...]
Risks related to prolonged usage of computers and how to avoid them
Meta analysis with 234 retrospective studies from 1986 to 2007 revealed that 6.3 out of 10 employees working in front of computer screen feel ocular-visual (cons 4 of 10 among other employees) problems, the median age being at 57 years. In DuPont Inc, United States, 535 accidents counted during two years (1999 and 2000), eighty-one percent were related directly or indirectly to CTS (carpal … [Read more...]
Major trends of evolution of the Computer : 1950-2010
The history of mankind is accelerating. Of the four billion years of existence of our planet, all known species are less than one hundred million years, humans have past less than a million years, the oldest picture on the wall of a cave is of 30,000 years. There are just 500 years, the invention of the printing press accelerated the dissemination of knowledge. 200 years separate us from the steam … [Read more...]