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Buying computer parts : buy your sound card

hugepedia — Tue, 07 Sep 2010 06:19:31 +0000

Software provided
The software is provided. While music fans will surely be buying a software semi-pro or pro, most users are only limited to the software supplied with the card … Choose, if possible, a good series all in one “providing all the functions so you will not have to look for more .

Available accessories
Microphone, speaker, headphone … all these are accessories that will unnecessarily increase the price of your sound card. When these accessories are included, they are generally of poor quality. So it is better to choose them after you buy the sound card to insure that you will be free to choose .

The external sound cards for laptops or the so called PCMCIA? For a laptop, it is better to invest in an external box with a sound card. Inserted into the computer, the audio card at a PCMCIA format indeed suffer from the noise of the computer. On thing that is strange with the sound, it is the multitude of formats and necessary outlets. It is better to know what do you want to connect at the card.

The advantage of the external sound card
The external sound card is surely way easier to install. Simply connect a USB (or FireWire) on your computer and install its drivers. The drawback: it requires more resources in terms of power than the computer’s internal sound card .

The higher the frequency is, the better is the sound ! The sampling frequency is 44.1 for a definition equivalent to that of a CD and 192 kHz for the audio in high definition. Since we added a new sound card, if it is qualitatively the top. Over this frequency already high , the the ear perceives sound nuances.

Taking on digital SPDIF is fine. But taking two is better
Since there are two formats (coaxial and optical) digital outlets, having both if possible is a good thing . What do you really need? The basic sound cards integrated in motherboards (AC97 and HD Audio) may be sufficient for nearly all purposes.

Who handles the sound, your computer or your sound card? It is better to focus your choice on a sound card with a powerful onboard DSP. It lets you apply effects in real time without using the CPU power of your computer.

Beware of the speakers :Remember that a high quality sound card is irrelevant if it is connected to a Wi-Fi kit of an average quality. That why one should choose a speaker or a headphone that will match with his sound card and will allow him to enjoy all its capabilities without any limitations .

How to clean up your pc

hugepedia — Sat, 28 Aug 2010 04:07:50 +0000

Some steps to clean up you pc
-Delete unwanted files

For users of Windows XP:
In the directory (C: Windows) creates a backup of uninstalling Windows updates, it takes the form of a list of several folders with strange names like $ $ NtUninstallKB8556 written in blue. You can safely delete. You must initially show hidden files:
-Go to the Start menu
-Click on My Documents
-Now click on the Tools menu
-Select Folder Options
-View tab, locate the line show hidden files and folders
-click OK
Then:
-Go on the desktop
-Click on C: drive (disk where your operating system)
-Then click the Windows folder C: Windows
-Delete all files with names resembling NtUninstallKB8556 $ $ written in blue
-BE CAREFUL not to delete others files!

For users of Windows Vista:
The procedure is slightly different to access the folder that stores the updates in Windows Vista, to be going in:
-Start and then Control Panel
-Click on the icon windows update
-Then select View history of updates in the top left margin-
When you find the next window that will offer to remove the updates, click on:
-You can access the last record of updates that can then be deleted:
-If your computer has already suffered a serious crash (example: blue screen or message “emptying of the physical memory) Windows creates a file called memory.dmp. The weight of this file is roughly equivalent to the amount of memory installed on the PC.

Once back to normal operation, this large file can be safely removed:
-Go on the desktop
-Click on C: drive (disk where your operating system)
-Then click the Windows folder C: Windows
-Delete the folder called memory.dmp
-Cleaning the registry

As and when the install / uninstall software, the registry accumulates many keys that are no longer useful. It can only be beneficial for the operation of your machine to clean the registry from time to time. For this, there are several free utilities that can remove all unnecessary entries from your registry files and residual allocated to the applications you’ve uninstalled. When installing new software or new hardware, your system creates a restore point, that is to say, it makes a backup at a specific time to allow a restoration.

This function is very useful but is also very “greedy” in disk space. It is therefore clear thinking from time to time the oldest backups, because only the most recent retain consistency with your current system:
-Go to My Computer
-Make a right click on your C: drive (disk where your operating system)
-Select the Properties tab
-Then clean the hard drive (Windows will calculate the amount of space that can be released)
-In the next window, choose More Options
-Finally, select: remove all restore points except the most recent
-Repair System Files

Following a crash of the computer or improper handling, it is possible that your hard drive hosts defective or corrupted files. While this may be completely harmless, this type of error generator crash in Windows (problems at boot time or launch applications files affected by). Here’s how to correct these errors:
-Go to My Computer
-Right click on your C: drive (disk where your operating system)
-Select the Properties tab
-Select the Tools tab, then Check Now
-On the hardware side

It is recommended to complete a dusting of the unit less than once a year to prevent any overheating and slowdowns in certain components such as fans, air …. opening it. Make sure you have wipes dry cotton, cotton swab, brush, … and whatever you deem useful to reach the nooks and crannies. You can also use an air bomb. Observe the precautions because it can be liquid. It is advisable to clean the PC as the photo below. Indeed, the cooling fins of the processor are a real nest dust!

If you’re not sure, it is preferable to use an experienced friend to guide you and that you advise during various operations.

Basic Computer Hardware

hugepedia — Wed, 03 Feb 2010 14:50:54 +0000

Computer hardware is the physical part of the computer including the digital circuits inside the computer as opposed to the software that carry out the computing instructions. The hardware of a computer is unlikely to change frequently unless due to the crash or for upgrading them. The devices that is capable of storing, executing system instructions and controlling other logical outputs.

Hardware comprises all of the physical part of the computer such as Monitor, CPU, motherboard, ram, CD-Rom, printer, scanner, hard disk, flash drive (AKA pen drive), processor, pci buses, floppy disk, power supply, VGA card, sound card, network interface card, peripherals, joystick, mouse, keyboard, foot pedal, computer fan, camera, headset and others.

CPU (Central Processing Unit): CPU or central processing unit relates to a specific or processor. The performance of the computer is determined by the CPU chip (processor speed) and the other computer circuitry.

Hard Disk Drives – Disk drive is the mechanism to run the disks. All disks need a drive to get the information, read it and put it back to the disks. Hard disk is used to store the data permanently. Often the terms disk and drive used to describe the same thing but it should be clear that a disk is a storage device.

Modem – A modem is used for the modulation and demodulation of the data that is transferred through the modem and the telephone lines. Modem translates the data from digital to analog from analog to digital. Because on the telephone lines data can travel in the form of the analog signals and in the computer data transmits in the form of digital signals. Modems are measured by the speed which is called baud rate.

Video cards-Video cards allow computer to display video, graphics and animation. Some video cards allow computers to display television. A video card with a digital video camera allows users to produce live video. A high speed broadband internet connection is required to watch the videos on net.

Network cards: Network interface cards allow PCs to connect with each other and communicate. Every network computer is required to have a NIC card. NIC cards are required both in wired and wireless networking.

RAM (Random Access Memory) RAM is a memory that is being used by the computer to store the information temporarily. For example when some work is performed on some applications that work is temporarily stored in the RAM. More RAM in the computer more faster computer works.

Cards – Cards are the hardware components that are added to the computer to increase their functionalities and capabilities.

Memory – Memory is the one of the important piece of the hardware. Sometimes memory chip memory is confused with the hard disk memory. Sometimes unallocated space of the hard disk is used as virtual memory also known as page file. This type of memory is a temporary memory and is used actual memory is less and requires some additional memory to perform a specific task.

Computer And Its Parts

hugepedia — Wed, 03 Feb 2010 14:43:15 +0000

If you use a desktop computer, you might already know that there isn’t any single part called the “computer.” A computer is really a system of many parts working together. The physical parts, which you can see and touch, are collectively called hardware. Software, on the other hand, refers to the instructions, or programs, that tell the hardware what to do.

The illustration above shows the most common hardware in a desktop computer system. Your system may look a little different, but it probably has most of these parts. A laptop computer has similar parts but combines them into a single notebook-sized package.

The system unit is the core of a computer system. Usually it’s a rectangular box placed on or underneath your desk. Inside this box are many electronic components that process information. The most important of these components is the central processing unit (CPU), or microprocessor, which acts as the “brain” of your computer. Another component is random access memory (RAM), which temporarily stores information that the CPU uses while the computer is on. The information stored in RAM is erased when the computer is turned off.

A mouse is a small device used to point to and select items on your computer screen. Although mice come in many shapes, the typical mouse does look a bit like an actual mouse. It’s small, oblong, and connected to the system unit by a long wire that resembles a tail. Some newer mice are wireless. A mouse usually has two buttons: a primary button (usually the left button) and a secondary button. Many mice also have a wheel between the two buttons, which allows you to scroll smoothly through screens of information.

A keyboard is used mainly for typing text into your computer. Like the keyboard on a typewriter, it has keys for letters and numbers, but it also has special keys. The function keys, found on the top row, perform different functions depending on where they are used. The numeric keypad, located on the right side of most keyboards, allows you to enter numbers quickly. The navigation keys, such as the arrow keys, allow you to move your position within a document or webpage.

A monitor displays information in visual form, using text and graphics. The portion of the monitor that displays the information is called the screen. Like a television screen, a computer screen can show still or moving pictures.

There are two basic types of monitors: CRT (cathode ray tube) monitors and LCD (liquid crystal display) monitors. Both types produce sharp images, but LCD monitors have the advantage of being much thinner and lighter. CRT monitors, however, are generally more affordable.

Speakers are used to play sound. They may be built into the system unit or connected with cables. Speakers allow you to listen to music and hear sound effects from your computer.