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Computers

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

48,002 Questions

What were some problems with inventing the apple computer?

well some problems computers have had were the premo scepto which is when a computer blows out its control panel inside of the computer , also there is a vinched topee which is when the computer explodes

Does brainpop cost money?

yes and the username and password is username is eufsd password is eufsd

Is a 4GB computer better than a 512MB computer?

well depending if you are talking about hard drive space then neither one of these sizes work, but if you are talking about memory (RAM) then of course 4 GB is better. the more ram you have the faster the computer can process data quick lier.

What is a GPU device in computer science?

gpu is a graphical processing unit which ables you run high definitions graphics on your PC, which are the demand of modern computing. if you want to run windows vista ultimate edition then it is better if your PC has a gpu. it helps you to get better 3d views. nividia is very well known for it's gpu.

What is the phone number of the Escondido Pioneer Room And Computer Center in Escondido?

The address of the Escondido Pioneer Room And Computer Center is: 247 South Kalmia Street, Escondido, 92025 4224

Where can I find cheap computer and laptops for sale?

There are many used and discount stores from which to buy desktop computers. You can build your own from a kit; Tiger Direct has the best deals and a good reputation. Also consider that each of the major manufacturers has at least one super budget model available. The Dell Inspiron 560/570 starts at $299. HP Pavilion has an entry level model for the same price. Fry's has several models below $325.

What are the uses of the computer in different fields?

Generally speaking, small PC = Personal computer for general user (ie games, doc, etc) Mediun PC = are for small to medium size businesses Super Computers are for the very large companies that require large amounts of data processing Inter networks = state to state or international Intra networks = within a company (ie branches) of tht local area The ways they are used is of multiple levels. computational PCs = atronomy, physics, mathematics analythical = data analysis (labs) communicational = internet, satellites It can be from cooking (ie microwave ovens, fridges, breadmaker, rice cooker, etc) through to your mobile phones to cars, aeroplanes, space devices and so on. The list is long you will need to dig up more info from these expressed bases above.

What company makes Asus computers?

ASUS. ASUS also makes the best motherboard on the planet, and if you where to look at the reviews of motherboards, you would see that they beat all other boards over 90% of the time.

Oject connected to a network is know as what?

The answer to this question depends on HOW the device is used on the network. If the device is used to store data from other computers it is called a server. If it is used to access data from other computers or the server it is called a client.

How many files can 5mb hold on a computer?

All depends on the file size. As long as the files don't exceed the limit (5MB) there should be no problem. Most computers hold over 5MBs.

What best describes a local color novel of the realism period?

It included a description of the customs and living styles of specifuc region.

What are the advantages of UDP?

The advantages of TCP over UDP are quite clear, as TCP guarantees that the sent data actually arrives, that it arrives in order and that there are no duplicates, while UDP provides none of these guarantees (only offers "best effort" policy). Unlike TCP, UDP does not provide any flow and congestion control.

On the surface, an unreliable transport protocol like UDP may not seem very worthwhile or desirable. But in fact, UDP can be very useful in certain situations, and it enjoys one key advantage over TCP - speed. The reliability features built into TCP can be expensive in terms of overhead at execution time.

Therefore, many applications find UDP well-suited for their needs, for the following reasons:

No connection establishment

While TCP uses a three-way handshake before it starts to transfer data, UDP just blasts away without any formal preliminaries. Thus, UDP does not introduce any delay to establish a connection. This feature is most useful to applications which exchange sporadic and low-volume data.

No connection state

TCP maintains connection state in the end systems. This connection state includes receive and send buffers, congestion control parameters, and sequence and acknowledgment number parameters. This state information is needed to implement TCP's reliable data transfer service and to provide congestion control. UDP, on the other hand, does not maintain connection state and does not track any of these parameters. For this reason, a server devoted to a particular application can typically support many more active clients when the application runs over UDP rather than TCP.

Small segment header overhead

The TCP segment has 20 bytes of header overhead in every segment, whereas UDP only has 8 bytes of overhead. TCP needs more header fields in order to guarantee reliability, while UDP, that gives no guarantees, does not.

Unregulated send rate

TCP has a congestion control mechanism that throttles the sender when one or more links between sender and receiver becomes excessively congested. This throttling can have a severe impact on real-time applications, which can tolerate some packet loss but require a minimum send rate. On the other hand, the speed at which UDP sends data is only constrained by the rate at which the application generates data, the capabilities of the source (CPU, clock rate, etc.) and the access bandwidth to the Internet. We should keep in mind, however, that the receiving host does not necessarily receive all the data. When the network is congested, a significant fraction of the UDP-transmitted data could be lost due to router buffer overflow. Thus, the receive rate is limited by network congestion even if the sending rate is not constrained.

Lower latency

With TCP, if a packet is lost, but the next packet makes it through, the kernel will withhold that packet until the earlier packet can be re-sent. This is because TCP is a guaranteed, in-order, stream protocol. This means that "fresh" data will sit in the kernel, becoming "stale", while waiting for the TCP timeout to be retransmitted (a minimum of 3 seconds for a lost packet). This is why UDP is usually better for games, voice conferencing, and other low-latency applications.

Broadcast and multicast

Being a connection-oriented protocol, TCP does not support broadcast and multicast. Therefore, applications that require this kind of service will have to use UDP as a transport protocol.

Application flexibility

The fact that UDP lacks built-in reliability mechanisms can be considered an advantage from the application designer's point of view. Building reliability directly into the application allows the application to "have its cake and eat it too". That is, application processes can communicate reliably without being constrained by the transmission rate constraints imposed by TCP's congestion control mechanism. Application-level reliability also allows an application to tailor its own application-specific form of error control.

For example, an interactive real-time may occasionally choose to retransmit a lost message, provided that round trip network delays are small enough to avoid adding significant playout delays. In fact, many of today's proprietary streaming applications do just this: they run over UDP, but they have built acknowledgements and retransmissions into the application in order reduce packet loss.

What is logical address in computer networks?

logical address is called as global address and physical address is called as local address .the ip address,which is used by the user in the network is found to be global for use and it is easily identified in any network .physical address is mac address ,which is stored in the nic card,which is mainly used ,when the system is connected in the network using switch

The Best Computers Are Different For Everyone?

Desktop computers can be costly. Because of this, it might be tempting to save some money by purchasing a model from an unknown manufacturer. Service, reputation and reliability are almost always better with a major manufacturer. Go with a name brand, but spend a good amount of time custom designing the computer so that it is right for the user. If all of the bells and whistles are not needed, you can save money by building a basic model.

What stores sell leather computer chairs?

Many shops sells leather computer chairs. There are shops like Argos which sell leather computer chairs in a range of styles. You can see this by looking on the websites or going through the catalog. You maybe also be a able to by leather chairs from general shops like John lewis which sell a wide range of leather chairs on the internet and in store. DFS sell leather chairs too in store and online. M&S are also known to sell leather chair and other furniture in store and are nice and in brand new condition.

What are some challenges if one wants to build a laptop?

Building your own laptop is next to impossible. First, you need to have a custom built motherboard and a casing that can fit it. This is almost never economical or within the means of the average consumer. It is highly recommend to instead purchase a custom laptop through a retailer, or build a small desktop computer.

How can you clean laptop for more room?

  1. you get a wipe and clean it
  2. then dry it up
  3. keep a cloth on it til completely dry

How computer stored information?

Information is stored as ons and offs, represented as 1 for on, 0 for off

This is commonly known as binary (meaning two numbers).

Binary can form numbers, by combining 8 bits (smallest unit of memory, either 1 or 0) into a byte.

it works like this:

Each bit is given a number double the previous, and when that number is "on," it is added to the total.

so in a byte, we get

1 2 4 8 16 32 64 128

And we can represent any number up to 255 by switching various numbers on and off

Note; for numbers beyond 255, the doubling is continued into 16 or 24 bits.

for example, to represent 13, we need

1, 4, and 8 (1+4+8=13)

1 2 4 8 16 32 64 128

1 0 1 1 0 0 0 0

To store text, each character is given a number. These character numbers are called ASCII (american standard code for information interchange)

For example, letter A has the number 35, so would be represented as 11000100

Hope this helps

What are the most uses for computers?

Computers are all around us, we cant get away from them. They are found in things from toys to space shuttles.

Computer uses include: storage of information such as pictures, documents etc... you can play games, research, study, do homeschooling, IM ( instant Message), email, video and audio chat with others any place in the world. Listen and download music. The internet is like the worlds largest library.

How do you check how many songs you have in windows media player?

Hi, If the version you are using is 9.0 or above. Just click on the now playing list on the top of the screen. You'll be able to see the songs on the right side of the pane. Thanks, Adamas

How do you fix computer that freeze and slow?

If you dont mind spending some money, add RAM. You can never have enough RAM for windows, & adding RAM is always a surefire way to get a little more performance out of your machine. If you're talking about a machine which used to run better, but is running slow now, your best bet is to do a few system-maintenence measures to speed things up a bit. First, do a good spyware scan. Spybot search & destroy or lavasoft adaware are both excellent freeware programs which will scan your system for useless software & remove it automatically. Both are linked below. Second, see all that crap down in your system tray (on the start bar by the clock), all that stuff is qeued up to run on startup & then just sit there soaking up RAM and CPU cycles. Go through those programs & go through their prefs & tell them to stop loading on startup. Failing that, spybot also has an excellent utility for removing unwanted programs from the startup routine. Third, optimize your operating system. Windows by default loads up all sorts of services that may or may not be necessary for your particular usage needs. I suggest googling for "windows XX optimization guide" with XX as your windows version for more info on what you do & dont need. Fourth, and maybe this should be first. Unplug your machine, take off the side, & blow out all those dust-bunnies. A clean computer is a cool computer, and a cool computer is a fast computer.

What are the advantages of a graphical document?

A graphical document helps people see what you are trying to explain. When you use a graphical document, you are incorporating pictures with words.

How do you crash server?

A crash or (system crash) in computing is a condition where a program (either an application or part of the operating system) stops performing its expected function and also stops responding to other parts of the system. Often the offending program may simply appear to freeze. If this program is a critical part of the operating system kernel the entire computer may crash.