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Computers

This category includes questions and answers about computers and everything related to computers.

48,002 Questions

What are some reasons for a computer to become slow?

Computers slow down over time due to many different problems including Hardware and Software problems. It really isn't the age so much as the effects of saving and deleting files, temporary file overload and possible virus/bot/marketing from internet searches you

have made over time. Hopefully, you haven't loaded new programs that are beyond the scope of your computer's memory.

These problems include getting dust in cooling fans (which happens over time).

For computers that run Windows, you can run Disk Cleanup to lighten the load of your RAM. Go to Start>All Programs>Accessories>System Tools>Disk Cleanup. There are also other things you can do in that menu. On the Disk Cleanup box, make sure to checkmark the first four items as well as the web based temporary files near the bottom.

Run the Disk Defragmenter after that. This will reorganize files and folders so they are in more efficient places on your harddrive, so that there is a contiguous area of unused space.

If things are particularly slow and/or weird, you should run anti-virus programs, like the free version of ad-aware (which picks up changes outside programs have made to your settings, etc. ) and your antivirus program.

What is a website where you can make your own song and save it to your computer?

Yes, it is called Garage Band. You have to pay for the program on a regualr computer but it is built in on every Apple laptop.

You have no sound on your computer and you use to have sound what can you do?

Make sure the volume on the speakers is turned up, also the volume icon on the task bar should be turned up.

Before all That If the sound card is on the motherboard make sure its enabled in BIOS, and all the drivers are installed, you can do that from device manager,

If all that is OK uninstall the sound driver and re-install it. if its a PCI sound card uninstall it , Restart your computer and re-install the driver.

Can you watch 3d on your laptop with 3d glasses?

As LG have copied their 3D technology from movie theaters, passive movie theater glasses will work with them.

Other manufacturers have adopted active 3D technology and theater glasses will not work with them.

What temporarily holds data and programs while computer is on?

The RAM (random access memory) usually stores temporary files and cache to help speed up your computer by not having to repeatedly load the same thing but is you do not restart your computer the RAM will become full and it will slow down your computer so every now and then just restart the computer for best performance.

Where can one find a package deal on broadband with free laptop?

Broadband for laptops is no different than any other computer. Charter, Comcast, and XFinity all offer bundle packages including cable and phone that results in the broadband hookup being cheaper.

What is the disadvantages of using round-robin scheduling?

Disadvantage:

§ Very important jobs wait in line.

§ Largest job take enough time for completion.

§ Setting the quantum too short causes too many context switches and lower the CPU efficiency.

§ Setting the quantum too long may cause poor response time and approximates FCFS.

What is an ic how it helps in reducing the size of computers?

IC stands for integrated circuits. They help to reduce the size of the computer because it is simply a small chip that is embedded with all the information needed. Because the chip is so small, the sizes of computers can be reduced.

What is syntax in computing?

If in the market research context, Syntax is normally the set of commands written while using database softwares like SPSS, Quantum Etc to generate tables In computer science, especially in the subfield of programming languages, the syntax of a computer language is the set of allowed reserved words and possible token order in a program. The syntax of a programming language is the set of rules that a sequence of characters in a source code file must follow to be considered a conforming program in that language.

The rules specify how the character sequences are to be chunked into tokens (the lexical grammar), the permissible sequences of these tokens and some of the meaning to be attributed to these permissible token sequences (additional meaning is assigned by the semantics of the language).

The syntactic analysis of source code usually entails the transformation of the linear sequence of tokens into a hierarchical syntax tree (abstract syntax trees are one convenient form of syntax tree). This process is called parsing, as it is in syntactic analysis in linguistics. Tools have been written that automatically generate parsers from a specification of a language grammar written in Backus-Naur form, e.g., Yacc (yet another compiler compiler).

The syntax of computer languages is often at level-2 (ie, a context-free grammar) in the Chomsky hierarchy. As such the possible ordering of tokens is usually very restricted. The analysis of a program's syntax is usually performed using an automatically generated program known as a parser which often builds an abstract syntax tree.

Who has the most affordable, reliable, desktop pc computer in the market today?

There are many amazing desktop pc's in the market, but some of them stand out more than others. If one wants a Windows 8 all-in-one desktop computer, they had better go with a Dell XPS One 27. This computer has a high quality touch screen, uses the brand new Windows 8 operating system, and has all up-to-date components. If someone wanted one that did everything for them, this is the one they would go with.

Why is 2001 space odyssey computer named hal 9000?

I have always heard that the name HAL was taken from stepping down one letter from the computer manufacturer IBM (I - H, B - A, M - L)

The in-story justification is that it stands for Heuristic Algorithm, which is kind of clunky and awkward, but then we're talking about computer nerds here, the same people who came up with names like SNOBOL to stand for "string-oriented symbolic language" (huh?), so it's possible.

Three negative points on the impacts of computer?

From a sociological perspective, some would argue computers are causing us to disconnect from the reality around us on an increasing basis - spending more and more time online, conversing with people through a screen rather than face to face.
From a physiological perspective, using a computer for extended periods of time can be very damaging to your eyesight, posture, and general health - which are best avoided by taking regular breaks and ensuring correct lighting and ergonomics.

From a philosophical perspective, one could argue that the proliferation of instant answers and instantaneous "intellectual gratification" through the use of the Web is eroding a drive to learn and discover things for ourselves; for example, instead of remembering how to calculate how much water might fit in a pond being dug in the garden using simple mathematics, today you can simply enter a few quick numbers on a website and get an answer immediately, without ever understanding how the number was generated.

What types of computer chips are volatile?

The Random Access Memory (RAM) chip is volatile, and any data not saved to the hard drive will be lost on switching off the computer.

What is the major factor that makes coaxial cable less susceptible to noise than twisted-pair cable?

A coaxial cable is shielded from electrical interference signals whereas UTP (Unshielded Twisted Pair) cable is not. The random twisting with which UTP is manufactured works very well, however, in locations where the interference levels are relatively low, because its method of construction ensures that any interference affects both wires in the pair equally. It should also be mentioned that STP (Shielded Twisted pair) cable is also available and is sometimes specified for LANs (Local Area Networks) instead of coaxial cable. But the much greater volume of coaxial cable sold means that coaxial cable prices have been kept very competitive with STP. As STP tends to be more tricky to install - its shield has to be very carefully and correctly terminated at each end - coaxial tends to be used more than STP where noisier-than-normal interference conditions are present at a particular site. Since the 1990s NIC (Network Interface Card or Component) equipment has had extra logic cicuits within it to reject ambient interference much more effectively than equipment which was designed in the previous 20 years, so nowadays UTP can be used more extensively in locations where only STP or coaxial cable would have had to be used before. So, in relation to LANs in normal non-industrial office and domestic buildings, this exam question is now almost obsolete! However coaxial cable is still necessary to carry LANs in difficult environments such industrial plants; hospitals; undergound railway and road tunnels and mines; on board ships and aircraft, etc. and must also be used to carry signals for radio, televison, video and other applications which run at much high frequencies and bandwidths than LANs.

What are some upcoming input devices?

do you mean like the optimus maximus, where they charge a rediculous amount of money to make something look "cool" or are you refering to suff like multi-touch sensitive displays, the keyboard in a glove, the frogpad one handed keyboard, or computers that can read our minds?

How do laptop cooling fans work?

Turn it off or you could put it in the freezer for a few minutes..... Hahahahah

Try to buy a cooler or put a fan near it to increase the air flow around the unit.

You can also use the computer in a temperature controlled room like how they run servers..

You could always build something with a small motor and a tube to blow in air near the vents of your laptop.

the easiest way to cool the CPU is to not use it as much... this way it doesn't get as hot.. You could always under clock it and set the CPU speed slower so the temperature doesn't get too high... , if you need the power just increase the cores, use an I-7 or maybe an I-9 with 4 to 6 cores put set the Mhz to one 1ghz instead of 3.0Ghz so that the Cpu will not get as hot....

What is the significance of Charles Babbage contribution to the development of computer technology?

Charles Babbage invented the concept of the computer as we know it today. His mechanical "Difference Engine" incorporated the ideas of stored programs, centralized processing, and input/output stages.

Unfortunately his design required more-precise metalworking techniques than were available in the mid-19th century, so he was unsuccessful at building a working Difference Engine. It remained until the 20th century for his ideas to be incorporated into electromechanical, and later electronic, computers.

In the 1980s the British Museum built a replica of part of the Difference Engine using modern metals an machining methods. It worked exactly as Babbage had proposed.

What online store has cheap Lenovo laptops?

I know for a fact that Amazon has them. If you are just looking for certain parts though, EBAY might be a better online store. The most pravtical way to buy one online might just be to go to their website.

What makes Dell computers good?

Well, that is a matter of opinion. They have a good marketing department and good name recognition therefore a lot of people make the assumption they must be good. They used to have a good warranty which a lot of people considered a major plus but in efforts to cut costs, their warranty has been cut severely. In my own PERSONAL opinion, having worked extensively with and on PCs over the course of about 25 years or so, I don't recommend them at all. Dell now seems to deliver an average 'run of the mill' system with other manufacturers beating them significantly in quality. When I was working as a computer consultant, people were frequently asking me for recommendations. Invariably, I specifically recommended people buy ANYTHING but a Dell for that reason.

Read more: What_makes_Dell_computers_good

How does a computer perform division operation?

it forms the negative of the number and adds.

eg

7 - 5 = 2

111 - 101

complement and increment the subtrahend.

101 ➔ 010 ➔ 011

add

111 + 011 = 010 (2)

What does ctrl b do?

It depends on the program you're using.

In a word document, CTRL + B is the keyboard shortcut for bold. Using it will turn on or off bold text.

On a web browser, CTRL + B will show you a list of websites that you have bookmarked.

How do you make a youtube account without your parents knowing?

ok first do you have an email?

second if you do use that and then just delete the email

Third if you don't your shoot out of luck ask your parents

What are the best computers for toddlers?

da deli monganta el fisco...... sincerly, dado