Now and Quickly Buy A New Computer In A Easy Steps

Here we read and get information about buying a new computer in a few easy steps, here we read that how we can buy new computer in fast way and best computer with few time so let us learn that how we can buy new computer in fast ways, This can let you know which courses that happen to be established to begin up. Find the courses You do not truly use, and set them to not begin on boot up. This could make your procedure.Obtain a pc which includes just options you wish. Numerous check out to purchase machines that transcend their price array with several extras that they do not will need or use.Measure where you plan to place your computer. Desktop computers come in different shapes and models that they are.You should make sure your computer will actually fit in the space you have.
If you want a single for do the job, a straightforward, but high-excellent program with Microsoft Phrase or Open Office will exercise (Open Office may also be downloaded without cost, if it will not include the PC). If you want a home Laptop, or even a loved ones Computer system, an easy, but good high quality program is what is going to get the job done. If you are a large media fanatic, and you work with media, an honest to high-finish good quality Computer system is ideal for you. And as for gamers, you’ll want a gaming Personal computer.
If you’ll be using your computer to manage music tracks on an iPod (or other MP 3 player), the most important thing you need is plenty of hard disk space—but virtually any new computer will have more than you could possibly need. (As a general rule of thumb, I suggest multiply your i Pod’s storage capacity by 2–3 and aim for a hard drive that size to ensure you have plenty of room for other things.) When it comes to storing videos and digital photographs, storage is rather more of an issue. But even if you buy a computer with a hard disk that turns out to be too small, you can easily add an external drive at relatively low cost to overcome the problem.
Laptops are far more flimsy (a lot less sturdy) than desktop machines and costly to receive fixed. In particular, the keyboards on notebook pcs are certainly not suitable for industrial-toughness every day use. You will quickly put on out a notebook’s keyboard when you pound it greatly for 8 several hours each day And you will find the price of replacing it could be about 20–twenty five per cent the cost of a brand new device! If, like me, you invest your full existence typing, and you like to work with a laptop computer, the smartest thing to perform is to take a position in an external USB keyboard. Plug it into your laptop and use it each and every time you need to do plenty of typing. In case you spill espresso on an exterior keyboard or put on it out, it’s a mere $ten for any new a single; spoil your laptop’s built-in keyboard and you may experience a bill of $200 or maybe more. If you find an external keyboard means You need to sit way too significantly from the monitor to read through it properly, invest in your self a stand for your laptop computer and set the keyboard just underneath it (or use two or three telephone directories).

Keep Protect your computer from various viruses and hackers

Keep your firewall turned on

A firewall helps protect your computer from hackers who might try to gain access in order to crash it, delete information, or even steal passwords or other sensitive information.

A “firewall” is an internal security system that helps protect your computer from unauthorized access.

Both Microsoft Windows and Apple’s Mac operating systems come equipped with firewall protection. Remember, however: While firewalls are generally incorporated, they still need to be turned on. You’re usually given this option when you first set-up your computer, so make sure to say “yes” to this security protection.

You can also easily purchase firewall software programs such as ZoneAlarm, Kaspersky and others. These programs keep evolving (or devolving) from year to year, so you might want to check on the most highly-rated programs ahead of time.

If you’re concerned about security for your smart-phone, you might want to investigate Sophos Mobile Security, F-Secure Mobile Security, Kaspersky Mobile Security, Trend Micro or Norton Smart-phone Security. These systems are among the more popular security software for mobile devices and also provide anti-virus protection as well (see below):

Install or update your anti-virus software

Anti-virus software provides a different function than firewalls. Anti-virus software is designed to prevent malicious software programs from embedding onto your computer. If it detects malicious code, like a virus, it works to disarm or remove it. Viruses can infect computers without users' knowledge. Most types of anti-virus software can be set up to update automatically.

Among the top anti-virus software include Symantec’s Norton Anti-virus, McAfee, Kaspersky, Webroot and more. Like with the firewall software mentioned earlier, you might want to check on the most highly-rated program ahead of time.

Install or update your antispyware technology

Spy-ware is just what it sounds like — software that is surreptitiously installed on your computer to let others peer into your activities on the computer. Some spy-ware collects information about you without your consent or produces unwanted pop-up ads on your web browser.

We provide several chapters in our book Just Tell Me How It Works: Practical Help for Adults on All-Things-Digital on web browsers and search engines. For now, know that a “web browser” is the term used for the program that allows your computer to connect to the Internet. (You might also have heard these web browsers referred to as Internet Explorer on your Windows, or Safari on your Mac computers).

Some operating systems – including Microsoft Windows and Apple’s Mac operating system – offer free spyware protection. Free or inexpensive software is also readily available for download from the Internet or which can be purchased at your local computer store.

Be wary of ads on the Internet offering download-able antispyware – in some cases these products may be a fake and may actually contain spy-ware or other malicious code. It's like buying groceries: shop where you trust.

Keep your operating system up to date

Computer operating systems are periodically updated to stay in tune with technology advances or to fix security holes. Be sure to install these updates to ensure your computer has the latest protection.

By “computer operating systems,” the FBI is referring to your Windows or Apple Mac computer. We suggest you turn on the “automatic updates” feature that these systems provide, so you won’t have to put you attention on them.

Be careful what you download

Carelessly downloading e-mail attachments can circumvent even the most vigilant anti-virus software. Never open an e-mail attachment from someone you don't know, and be wary of forwarded attachments (files, pictures or even links) from people you do know. They may have unwittingly advanced malicious code.

Turn off your computer

With the growth of high-speed Internet connections, many opt to leave their computers on and ready for action. The downside is that being "always on" renders computers more susceptible.

Beyond firewall protection, which is designed to fend off unwanted attacks, turning the computer off effectively severs an attacker's connection – be it spy-ware or a botnet that employs your computer's resources to reach out to other unwitting users.

A “botnet” is a number of private computers infected with malicious software and controlled as a group without the owners’ knowledge (i.e. to send spam).

“Spy-ware” and “botnet” are just some of the terms for malicious software that could “infect” your computer. The most common phrase you’ll also hear are “computer virus,” “Trojan Horse,” “ad ware” and even “worms.” Not too pleasant, but that’s the general idea.

Protecting your computer: Our general advice

Both Microsoft Windows and Apple’s Mac operating systems come with pre-installed firewalls, anti-virus, and spy-ware protection, They’re quite reliable and very handy, so we suggest you “agree” to use them – you’ll be asked when you first set-up your computer or laptop.

Sometime these pre-installed software protection programs – notably, anti-virus software – are for a free-trial period only. Don’t be surprised if you’re asked to pay a yearly fee after the trial period is over. Again, usually worth the cost.

If you’re thinking of adding two anti-viruses or spy-ware programs for ‘double-protection’ – think again.

Multiple anti-virus and spy-ware programs often run at-odds with each other and can cause conflicts within your computer. Decide on the best protective program you’d like to run and stick with it.

Both Windows and the Mac operating systems provide automatic updates for your computer. When you come across a prompt asking whether you want to automatize these updates, we suggest that you click “okay / agree” to the request.

Heed the FBI warning about taking precaution when opening e-mail attachments. You may receive an e-mail from someone named “Helen,” but that person might not be the “Aunt Helen” you know (or your Aunt Helen’s e-mail account may have been hijacked by someone else). When in doubt, contact the person whom you think sent the e-mail and make sure the contents is safe (and that they, indeed, did send you the e-mail).

Don’t panic or grow paranoid. Although you’ll want to take care to protect your computer or digital device, there is no need to grow anxious or paranoid in this regard.

Even if your computer – or even your smart-phone – gets “infected,” there are a number of ways of ridding yourself of the virus or spy-ware problem. (We recommend you follow the earlier FBI guidelines so you won’t even need to worry about infections.)

The bottom line: Relax; take proper precautions; then go ahead and enjoy your computer, smart-phone and digital devices.

How Computer Mother Board Works For Your Pc

How motherboard Will Work Better
 motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer, including the central processing unit (CPU), memory and connectors for input and output devices. The base of a motherboard consists of a very firm sheet of non-conductive material, typically some sort of rigid plastic. Thin layers of copper or aluminum foil, referred to as traces, are printed onto this sheet. These traces are very narrow and form the circuits between the various components. In addition to circuits, a motherboard contains a number of sockets and slots to connect the other components.
Parts of a Motherboard
If you were to open up your computer and take out the motherboard, you would probably get pretty confused about all the different parts. Depending on the make and model of your computer, it might look something like the picture below.
Photograph of a typical motherboard of a desktop computer
To understand how computers work you don't need to know every single part of the motherboard. However, it is good to know some of the most important parts and how the motherboard connects the various parts of a computer system together. Some of the typical parts are described below - they are also labeled in the next photograph:
A CPU socket - the actual CPU is directly soldered onto this socket. Since high speed CPU's generate a lot of heat, there are heat sinks and mounting points for fans right next to the CPU socket.
A power connector to distribute power to the CPU and other components.
Slots for the system's main memory, typically in the form of DRAM chips.
A chip forms an interface between the CPU, the main memory and other components. On many types of motherboards this is referred to as the North-bridge. This chip also contains a large heat sink.
A second chip controls the input and output (I/O) functions. It is not connected directly to the CPU but to the North-bridge. This I/O controller is referred to as the South-bridge. The North-bridge and South-bridge combined are referred to as the chip-set.
Several connectors, which provide the physical interface between input and output devices and the motherboard. The South-bridge handles these connections.
Slots for one or more hard drives to store files. The most common types of connections are Integrated Drive Electronics (IDE) and Serial Advanced Technology Attachment (SATA).
A Read-only memory (ROM) chip, which contains the firmware, or startup instructions for the computer system. This is also called the BIOS.
A slot for a video or graphics card. There are a number of different types of slots, including Accelerated Graphics Port (AGP) and Peripheral Component Interconnect Express (PCIe).
Additional slots to connect hardware in the form of Peripheral Component Interconnect (PCI) slots.

Keep Your Computer Dust-Free

Dust bunnies are real — and they seem to reproduce as fast as their namesakes. But you can banish that dust from your PC and get back to work or play. Here are the computer-dusting procedures:


1.Open and dust your PC at least once a year.
Consider it a birthday present for your computer. Unscrew or unlatch your PC’s case and use a can of compressed air to blow any accumulated dust from the motherboard, adapter cards, and cables (as shown in this figure). If allowed to accumulate, that dust can act as a heat-retaining blanket over your PC’s circuitry, and overheated components have a significantly shorter lifespan.


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2.Remove dust that’s settled on the fan blades.
Speaking of fans, use your compressed air to get rid of any additional dust on fan blades and within air intake holes (see this figure). To properly ventilate and cool your PC, these openings need to be free of dust bunnies.


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3.
Wipe down your PC’s case and your monitor with a clean, dry cloth every few months.
You should never use any household solvents to clean your PC’s case, but antistatic cleaning solutions and cloths are made just for cleaning computer hardware, like the ones shown in this figure.

File Sharing Window XP

 One of the handy features of Windows XP (and Windows 2000, for that matter) compared to earlier Windows versions like 95/98/Me is its support for user-level security, which gives you fine control over who can access what information on a system. In this article, we'll show you how to set up your Windows XP Professional computer so you can share files and folders with other Windows computers on a network, while making sure that only desired users have access.

In Windows 95/98/Me, you share data by assigning a password to a shared folder, and anyone that knows the password can gain access to the data.  That may be adequate in a small home network where, for example, Mom and Dad know the password to the family's financial data, but Junior doesn't.  But it isn't practical in a networks with lots of potential users, since it's hard to keep a password secret amongst a large group of people.

Windows XP Professional replaces password-based security with two alternatives:

Simple File Sharing is enabled by default on Windows XP Professional systems that are members of a workgroup (typically used in small networks) rather than a domain (typically used in large corporate networks).  For full details, see our article on Simple File Sharing. There are no passwords or access restrictions and, with one exception described in the article, everything that's shared is accessible by everyone on the network.  Simple File Sharing is the only type of sharing available in Windows XP Home Edition.
By disabling Simple File Sharing, you can specify an Access Control List (ACL) for each shared disk or folder.  Using an ACL gives you much greater control over shared data, since it lets you determine the specific users that will have access as well as the level of access they will receive.
We'll show you how to configure Windows XP Professional to:

Disable Simple File Sharing for increased security and control;
Create user accounts and user groups;
Share a disk or folder;
Set up Access Control Lists;
Allow network access by users without passwords.
To illustrate the concepts, we'll:

Create user accounts for four people: Alistair, Fraser,
Iona, and Catriona;
Create shared folders called Girls tuff, Boystuff, and Kid stuff, which will allow different levels of access to different people.  Boy stuff will be accessible to Alasdair and Fraser, Girl stuff will be accessible to Iona and Catriona, and Kid stuff will accessible to them all;
See how the users access the shared folders.
Finally, we'll show you how to access Windows XP Professional's shared disks and folders from another client computer on the network, adding some information about file permissions in the NTFS file system, and giving solutions for some common network access problems.

Secure Your Wireless Network

1. Login to your wireless router
a) If you've never logged into your wireless router, look up the make and model of the router, and find
the default IP Address, username, and password, then login.
b) For example, if your wireless router has a default IP Address of 192.168.1.1, default username of
admin, and default password of blank. Login by doing the following:
1. Open Internet Explorer and type in the address http://192.168.1.1
2. When prompted, the username would be admin, and the password would be blank.
c) If the router's password is still set to the default password, it is important to change this password to
something else to keep an intruder from effectively kicking you off of your own network.
2. Enable MAC Filtering
This is probably the easiest way to keep intruders off of your wireless network although the least secure.
You can enable a White-list of MAC Addresses and then only the MAC Addresses that you specifically
put into this list will be able to use your Wireless. You'll have to remember this if a friend comes over
and tries to use your wireless network.
3. Enable Encryption
It's important to use encryption on your wireless network. Not only does it keep intruders off of the
network, it also keeps eavesdroppers from listening in on your network traffic. The two major types of
wireless encryption are listed below. Please also note that any encryption enabled on the wireless
router must also be enabled on each Wireless Device that needs to connect to the internet.
a) WEP – This is still the most common type of encryption enabled on most wireless routers. Please
note that this can be broken by serious hackers in about 2 minutes, but will keep out most neighbors
and passerby's.
b) WPA2 – This is becoming the most common type of encryption and is enabled on most new wireless
routers. WPA2 is much more secure than
WEP and has not been compromised yet, but is not
available on some older types of Wireless Devices.
Deciding between WPA2, WEP, or MAC Filtering
WPA2 Encryption is the most secure method for keeping intruders off your network.
If you have older devices that will not support WPA2, WEP is encouraged.
If you are unsure how to setup encryption, MAC filtering is least secure, but easiest to setup.
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4. Disable SSID Broadcasting
This option decides whether people can or can not see your wireless signal. This is not necessarily
recommended because although this will keep your network invisible to the common nosy neighbor, it
will not protect your network from any serious hackers. It can also make setting up your own devices on
your wireless network more difficult. So, it's good to know how this works, but always use encryption
and don't rely on just disabling SSID broadcasts to keep your network secure.
5. Install Who's On My WiFi
Download and Install Who Is On My WiFi Software onto a desktop computer that is always on at your
home or office. Who's On My WiFi acts as a detection engine by scanning your network every few
minutes to see if anyone has gotten onto your network. People could get in by breaking WEP
encryption, faking through a MAC Filter, somehow breaking WPA2, or by good old fashioned hard line
plugging into your router directly instead of connecting through the wireless. Monitoring for intruders is
the final step in securing a Wireless Network.

USB And Its Function

Just about any computer that you buy today comes with one or more Universal Serial Bus connectors. These USB connectors let you attach mice, printers and other accessories to your computer quickly and easily. The operating system supports USB as well, so the installation of the device drivers is quick and easy, too. Compared to other ways of connecting devices to your computer (including parallel ports, serial ports and special cards that you install inside the computer's case), USB devices are incredibly simple.
In this article, we'll look at USB ports from both a user and a technical standpoint. You'll learn why the USB system is so flexible and how it's able to support so many devices so easily -- it's truly an amazing system.
Anyone who has been around computers for a while knows the problem that the Universal Serial Bus is trying to solve -- in the past, connecting devices to computers has been a real headache.
Printers connected to parallel printer ports, and most computers only came with one. Things like external storage media, which need a high-speed connection into the computer, would use the parallel port as well, often with limited success and not much speed.
Modems used the serial port, but so did some printers and a variety of odd things like personal digital assistants (PD-As) and digital cameras. Most computers had at most two serial ports, and they were very slow in most cases.
Devices that needed faster connections came with their own cards, which had to fit in a card slot inside the computer's case. Unfortunately, the number of card slots is limited and some of the cards are difficult to install.
The goal of USB is to end all of these headaches. The Universal Serial Bus gives you a single, standardized, easy-to-use way to connect up to 127 devices to a computer.

Computer Processor And Its Function With Definition.

The computer you are using to read this page uses a microprocessor to do its work. The microprocessor is the heart of any normal computer, whether it is a desktop machine, a server or a laptop. The microprocessor you are using might be a Pentium, a K6, a Power Pc, a SPARC or any of the many other brands and types of microprocessors, but they all do approximately the same thing in approximately the same way.
A microprocessor -- also known as a CPU or central processing unit -- is a complete computation engine that is fabricated on a single chip. The first microprocessor was the Intel 4004, introduced in 1971. The 4004 was not very powerful -- all it could do was add and subtract, and it could only do that 4 bits at a time. But it was amazing that everything was on one chip. Prior to the 4004, engineers built computers either from collections of chips or from discrete components (transistors wired one at a time). The 4004 powered one of the first portable electronic calculators.
If you have ever wondered what the microprocessor in your computer is doing, or if you have ever wondered about the differences between types of microprocessors, then read on. In this article, you will learn how fairly simple digital logic techniques allow a computer to do its job, whether its playing a game or spell checking a document.

Ram And How It Works

Random access memory (RAM) is the best known form of computer memory. RAM is considered "random access" because you can access any memory cell directly if you know the row and column that intersect at that cell.
The opposite of RAM is serial access memory (SAM). SAM stores data as a series of memory cells that can only be accessed sequentially (like a cassette tape). If the data is not in the current location, each memory cell is checked until the needed data is found. SAM works very well for memory buffers, where the data is normally stored in the order in which it will be used (a good example is the texture buffer memory on a video card). RAM data, on the other hand, can be accessed in any order.
Similar to a microprocessor, a memory chip is an integrated circuit (IC) made of millions of transistors and capacitors. In the most common form of computer memory, dynamic random access memory (DRAM), a transistor and a capacitor are paired to create a memory cell, which represents a single bit of data. The capacitor holds the bit of information -- a 0 or a 1 (see How Bits and Bytes Work for information on bits). The transistor acts as a switch that lets the control circuitry on the memory chip read the capacitor or change its state.
A capacitor is like a small bucket­ that is able to store electrons. To store a 1 in the memory cell, the bucket is filled with electrons. To store a 0, it is emptied. The problem with the capacitor's bucket is that it has a leak. In a matter of a few milliseconds a full bucket becomes empty. Therefore, for dynamic memory to work, either the CPU or the memory controller has to come along and recharge all of the capacitors holding a 1 before they discharge. To do this, the mem­ory controller reads the memory and then writes it right back. This refresh operation happens automatically thousands of times per second.