Computers

An array is a contiguous section of computer memory that contains elements of equal size. A linked list are non-contiguous sections of memory that contain data that is dynamically allocated and released as necessary.

Arrays are fixed in size. Changing the size requires significant processing power. They are quick to retrieve an element by index in the array. Finding elements in the array requires less code, and so is also faster. They also use less memory, since only one memory "pointer" is needed to locate the entire array. Arrays are best used when there are many elements and the overall size of the array will not change often.

Linked lists are variable in size. Changing the size requires virtually no processing power relative to arrays. Finding an element by index requires significant processing power. They use more memory, as each element requires at least one additional "pointer" to locate another node (some use two). Linked lists are best used when there are a limited number of elements that will be fairly often added and removed in a way that would incur the array's high cost of resizing itself frequently.

The reason is computer language at that time was the binary number system which means computer language or computer understandable language .so now the new technology mission is to make the computer brain from the computer language to human understandable language .especially all analogy circuit shuold be change to the digital circuit or digital electronics from the analogy electronic.

binary numbers are so difficult to understand by human but machine understand them. human can understand the both hexadecimal and octal numbers than binary. the brain of computer is not like the brain of human so by that way, unless the computer brain shuold look like human brain i means to think and do all things after the decission about all kind of problem. it can be possible whenever the computer understand the higher language without converting to machine language. computer can be work accurately if that problem can be solve.

the computer specialists work hard to change the words or language of the machine to the human understandable language. the octal decimal and hexadecimal numbers are understand by human, and store more data or more million of byte than binary numbers .the computer now can be advance unless the machine language change to the higher language not involving of the converter devices.

by tut lam

ANSWER SIMPLY PUT A BINARY OF DIGITAL 16 IS 1111THAT IS WHAT COMPUTER WORKS WITH AND UNDERSTAND. A BIGGER NUMBER1000101110001 BECOMES UNFRIENDLY TO US OCTAL WILL BE 16501 IN HEX IT BECAME 1711 BASICALLY OCTAL ARE 3 GROUP HEX 4 GROUP OF NUMBERS

Information technology's main role in rural development is to provide people with information of any kind they require because information is necessary for development. for example information and communication technology can help farmers in rural areas to know about new means and techniques of farming that leads in more production and thus more income, information and communication technology can help people consult doctors in urban areas thus reducing health issues, information and communication technology can help educate child by using distant learning methodology and many more.

"Click." It's one of winter's first and most unwelcome sounds - the sound of a dead battery. But you don't ever have to hear that ugly sound if you keep the health of your battery in mind, and take a few precautionary measures: Before you find yourself hearing this mechanical death rattle some cold wintry morning, go outside right now and check out the condition of your vehicle's battery. As a general rule, if the battery is more than four years old, expect a funeral for it sometime soon. Even if it starts your car just fine right now, when the outside temperature next drops below freezing, its weakness will be apparent. Cold weather reduces the operating efficiency of all batteries by half or more - and weak, dying batteries are the first to give up the ghost. This is one of the reasons, incidentally, why electric cars are unusable in the cold Northeast and have been sold thus far only in places that are warm year-round (California, Arizona, and New Mexico so far). Click here to find out more! Know how old it is. Most batteries will have a date they were put into service visible on a plastic tag on top of the case. It will show the month and year, letting you know about how much useful life is left. If your car has the original, factory-installed battery, however, it may not have any such helpful info because instead of a label, there will be a "Delco" (if it's a GM product) or "Motorcraft" (if Ford) stamping - and that's all. But if you know how old your car is, you also know how old the battery is. If the vehicle is more than four years old, replacing the battery is good insurance, even if it's working fine right now. If it's old, replace it. There are several options here. The most expensive is to go directly to the parts counter of your new car dealership and request an exact replacement. You can have the dealer install it or do the work yourself. But the markup and labor costs will definitely hurt your pocketbook. A better alternative is to go to a reputable auto parts store and buy a good name-brand battery. Interstate batteries are high-quality pieces; so also the "DieHard" replacement batteries sold at Sears. Auto parts stores also stock "Original Equipment Manufacturer" (OEM) batteries made by AC-Delco (GM's supplier) and others. The important thing is to be sure you get the right battery - that is, one rated for your specific car's needs. If you have a car with lots of electronics and power options (most late-model vehicles fit this category), you'll need a higher-output battery than an older car that lacks these current-drawing parts. Make sure you get the right one. Finding the right battery is easy. Just ask the parts man to look up the correct application in his book. Don't skimp and try and get by with a lower amp battery than listed for your car or truck. As with fuel recommendations and tire pressure ranges, there's a good reason for abiding by what the engineers who built your car suggest. Save some dough and do it yourself. For those who want to avoid labor charges to install the battery, take heart: the procedure is a simple task that takes about ten minutes and typically requires a crescent wrench and a screwdriver to do the job. All you have to do is loosen the cable clamps that attach to the battery's terminals. Remember, remove the negative battery cable first, and reconnect it last . Then unscrew/unbolt the hold-down brace that keeps the battery in position. Lift out the old battery and install the new one, reversing the procedure. That's it. You're done. Some batteries - the ones with side post terminals in particular - are a bit more challenging. For these, you may need some open-end wrenches and other tools. Check everything before you finish. Before closing the hood on your new battery, make sure the cables and terminal ends are not cracked, corroded, or dirty. If they are, clean or replace them with new parts to ensure a positive connection.

Basically what a computer fan do is pull the heat from the heatsink that is connectted to the CPU and escorts it out of the computer,, because if the CPU gets to hot then the computer just stop working.

A home page is the website you choose to see everytime you open Internet Explorer and is the website that will appear each time you click the house on the Internet Explorer Browser toolbar. (Note this may be different for Internet Explorer 7)

No. Multiuser operating systems create a shell for each user. It would be possible to see what each users was doing from a system administrator viewpoint but not form the normal logon window.

If the sending device does not receive an acknowledgement for a packet, the packet will be retransmitted.

yes, most modern laptops (built in the last 7 or so years) have hook ups for high speed internet or dial up through a phone line. newer laptops (last 3 years or so) will have a built in wireless card to us WiFi internet.

According to the experts this web site is bogo.

The advantage of multilevel queue scheduling is that it covers all disadvantage of all others scheduling......................

The main disadvantage of multilevel queue scheduling is that it is very difficult to understand and it takes a lot of time........

By waqar ahmad awan (0333-9996376)

It is important to try and continuously imrpove your work because then you will get recognised for your efforts. Once you have done a really good job of a task, then you can start to learn other things and improve on your tasks and duties. When you have proved yourself, in which you can do your tasks and duties to an advanced level, then you can ask for a pay rise or a promotion

In our number system, we can have columns. We can have a ones column, a tens column, a hundreds column and so forth. The second column determines the base. So a base 10 number system goes 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and then the next number is 10. You can have a base 2 where the second column starts with a 10. It would go 0, 1, 10, 11, 100, 101, 111, 1001, 1010, 1011, 1100, 1101, 1110, 1111, 10000, and 100001. Computers work with base 2 and then translate back to something we can understand. The last number can be 65 or it can be a Capital A, depending on what it is doing.

Local stores such as Ikea or Home Depot might have a small selection variety. If it is for a small home office these stores could be a good cheap alternative to the more expensive specialty stores.

Computers represent pictures via image files. Image files typically store the information in a grid like format, with each block on the grid being a colored square known as a 'pixel' if you put enough colored blocks next to each other (like, hundreds or thousands) then it starts to look like a picture -- each pixel has its own color and when you put enough of them on the grid the pixels appear as an image rather than a bunch of colored blocks. Everything displayed on a computer screen is a pixel too, and the term 'resolution' is a count of how many pixels are displayed at once, a 1920x1080 screen resolution means that the screen may contain 1920 pixels (colored blocks) from left-to-right and 1080 pixels from top-to-bottom for a whopping 2 million pixels on screen at once (2 megapixels) which results in a screen which can display a lot of finely detailed things at once. Likewise, if you zoomed to 100% on an 8 megapixel image, it would be large enough to occupy 4 1920x1080 computer screens.

Places to buy technology:

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# Office depot # Anywhere

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"Wikipedia is a great site for finding generic information about storage backup. To find specific information you can look a tech sites, Consumer Reports to compare specific models, and local computer stores."

An input device, performing the same function as the mouse does but using a different mechanism.

tradeoff inherent in handheld computers are mainly because of it's small size for convenience and portability. Following are some tradeoffs:

1. Limitatiion of size in memory. Usually in megabytes compared to gigabytes in computers.
2. Processor speed is limited because of less power ability. the Operating System has to be designed for low power consumption.
3. lack of physical space limits the I/O capability. The input method are small screen based keyboard or hand-writing recognition while small display screen for output.

You will find that, Virtual Private Network is divided into two types. One is Internet Protocol Security and another one is Secure Sockets Layer. You will be able to get access into the network by using both. The procedure is that, the private network will link you through the public network but in different ways. Now the question is that, which one is better for a small business. Actually it is dependent on your existing hardware as well as it depends on the users that will get access from a remote distance. Internet Protocol Security allows your users to get access into all application in your business network but only the existing users can get access here because this system doesn't allow non-specified devices to access. So in general Internet Protocol Security is more secured than Secure Sockets Layer. So if you need to permit your suppliers, customers and other clients to access in specific applications then choose Secure Sockets Layer and if you wish that only some specific employees will get access with specified devices then choose the Internet Protocol Security. Have a profitable business with a secured network.

http://www.techyv.com/questions/type-virtual-private-network

Nowadays virtually any wireless router. When you get a router you usually have about 4 lan ports (switch) and wireless router in the same box.

The most common ways to acquire a virus is by not having anti-virus software and opening attachments in email from untrusted senders, downloading from untrusted sites, and you can even pick up a virus from going to websites and clicking links. Avoid downloading music that you cannot preview, same with videos. Normally a virus will attack your system more violently if you downloaded a file and install or open it.