Q: What was the economic importance of Computers? especially in the 90s. Was it because it expanded the market or what b/c i'm not exactly sure. Pwease helppp mee?
A: Despite the growth and obvious importance of the Internet and distributed computing systems, it is the mainframe computer that has provided the greatest economic benefit. Mainframes are able to store and process vast amounts of data extremely quickly, which is why every bank, insurance company and airline depends on their mainframe. Yes, even today!The major benefits of mainframe processing are twofold. Firstly, operations like accounting and stock control that once took hundreds of people to do manually can be performed much more effectively and pretty much in real-time. Secondly, mainframes can manage enormous databases which allow you to make much more effective use of your data (through techniques known as data mining, for example).Mainframe computers are alive and well, and running most core business functions quietly in the background whilst the new kids on the block (like the Internet) take all the plaudits.
Q: My computer has had a trojan virus for a while and the only thing i can think of because i know nothing about computers is getting a new tower which i really dont want to have to spend money on..any way to get it off?
A: Hello,Instead of that,Try 1. Antivirus software to remove the virus. Search for google for removal of virus for the virus name you have in your system.2. If you cant get antivirus or for any reason cannot do the above, simply get the Hard disk formatted instead of buying a new tower. Formatting the hard disk will remove the virus if its not very very harmful virus which attacke\s hard disk boot sectors also.regardsskpshahhttp://www.skype.com/share/skypeprime/join/?&call=&skypename=skptechnomedia
Q: im rewally good with a lot of things that use my hands and stuff but how the hell do computers work i dont get it!!!!i mean electricity goes in and you have some THING that is really cool!andmemory cards too!
A: Computers are considered to be calculators, they are constantly translating codes and executing them and processing data and constantly executing codes and solving errors.
Q: okay if someone bought me a computer and i deleted all the history from it, could they still access the history somehow ? i really don't want my emails hacked and what not !
A: Even with strong disk wipers, some data can still be recovered with sophisticated software and hardware...but that takes effort. You can go to Filehippo.com and download Recuva under Compression and Backup section and basically recover some of your old data to see what can be recovered with just that program. It's very good recovery software. But, you can also overwrite your data with Recuva for more security. I've used Eraser which can also be found at Filehippo under System Tuning section, to overwrite my data with junk files to help prevent recovery. Read instructions carefully, use with caution. Simple to use, but very powerful. Best recommendation has always been, removed hard drive and destroy. But, that's extreme.
Q: I had two computers both connected to a wireless router. Yesterday I connected a third computer to the network and, although the connection goes through for this new computer, one of the original computers now says "Limited or no connectivity" and cannot connect to the Internet. Is it possible that the new computer is using up too much bandwidth and is therefore preventing the other computer from accessing the Internet?
Q: Can virus attacks computers by sharing a printer?I run a small business and had 2 computers in my office. I used one computer to do all the office work like keeping record & data, letters etc and the other which is connected to internet for email, research, etc. Both computers are sharing same printer. If the computer that connected to internet get attacked by a virus, does my other computer will be attacked too?
A: antivirus tips and antivirus download:http://best-computer-antivirus.cn
Q: I have an alienware gaming computer, and I am planing on getting another computer vary soon. The one I have right now is attached to a surround sound system, and it sounds awsome. The other computer I am getting is going to be a multi-media computer, and I would like to connect it to the same surround sound system.I would like to listen to music, and play games at the same time.How can I have both computers attached to the surround sound system, and have them both use it simaltaniously?I would like to use the optical input on my system too. So how would I have both computers connected with optical cables at the same time?
A: I doubt its possible. I have set up about 4 surround sound systems. All of them require to switch to the input/component before the signal can output to the speakers. So computer 1 would get it while computer 2 wouldnt be picked up by the receiver. what i recommend is that, if you have a sound blaster with the internal drive with the connectors, have the media pc spdif out into the alienware and have it played there, while outputting the alienware to the surround sound system.
Q: I know the mechanics of computers and the other parts to them and how they function but how did they get the function to function? No matter how hard I think, I can't think of how computers and other things got the function to function? Like, how did the people develop an artificial code and put it into the chips and things to allow them to function? It seems impossible but it is possible because we have it. Like, how can people put codes into metal and other non-living substances to allow them to support articifial intelligence and things? Like, people can type, use programs, access and do things on computers just because of chips and other components to computers. How and why is it possible?
A: Computers--difficult subject.It all comes down to on/off switches. On is a one (1) and off is a zero (0). Anything can be represented with enough 1s and 0s. That is called Binary code. The value of the digit multiplies by 2x for every digit to the left. 0 is zero 1 is one 10 is two 11 is three100 is four, etc.On a keyboard, all letters and symbols and numbers have a special code of numbers, called ASCII. One can send a letter or series of letters (words) by ASCII numbers between programs, and between machines. The ASCII numbers are in binary form.If you have four binary numbers together, it is a bit. 1001 is nineIf you have eight binary numbers together, it is a byte. 01100011 is ninety-nineYou can save the bits and bytes on a magnetic media (floppy or hard disk or a data stick or flash drive) as magnetic zones of N and S directions (I forget if a 1 is N or S). They can be saved by the multi-billions in rings that magnetic heads can read later, and write also.There is another storage area, called volatile memory. It is very fast, but blanks out when power is off. And a third area, called permanent read-only memory or PROM and eraseable permanent read only memory (EPROM) saves the information needed to start up and get the computer ready to run programs.All programs are just shuffling bits and bytes of binary 1s and 0s inside a central processing unit. It determines what to do with the bits and bytes. Addition, subtraction, comparison (equal or larger or smaller), and get more bits and bytes, or send them on to storage or display or other output. This is determined by programs.The program that does the most is the operating system. It tells the processor what to do with other programs. It is written in several languages. The simplist is in binary code. This comes from machine code. That is very simple instructions of what to do with numbers and letters (add, subtract, store, get, delete). Machine code accepts instructions from a programming language. This language can be understood by humans easily. Some popular programming languages have been Basic, Fortran, Cobol, Pascal, Ada, LISP, C, C++, and many more modern ones. A programmer uses one or more to create an operating system and applications (tools of software) to handle data.Data is information that flows in and out of the computer. It can come from keyboard, mouse, USB, network, serial and parallel ports, and from radio and infrared links. The data is processed by the application, and either stored, sent to outputs (display, printer, ports, radio, etc) or on to other applications or deleted.Programs and applications are called from disk storage and PROM and EPROM as needed, and fed into (volatile) memory and processed.The picture you see on the screen is a series of bits. At each row across, there are hundreds of groups of three LCD patches that can be left black, or made clear with a voltage, depending upon what is sent to the patches. There are red, blue and green patches. All three patches on equally makes white. Various colors can be made by combining the three colors unequally. A voltage can be low, medium, or high, with up to 32 steps, depending upon what was sent. That gives quite a range of brightness, and many millions of colors. Each 3-patch is a pixel. Many pixels in rows and columns make a picture.Mouse clicks are just sending a high (1) or low (0) signal to the computer. Mouse movement used to be by a ball rolling a pair of wheels. The wheel had slots that interrupted a light shining on a sensor, making changes of light/dark/light and sending high and low signals. Now, laser mouse shines a light on a surface, and if there is a variation in the reflection (mouse moved), a signal is sent.That's about it. The rest is just cake icing.
Q: I am trying to buy a new computer and I was planning on buying a touch screen computer. I don't know much about computers but I just needed for everyday use. Should I buy a touchscreen computer or a regular desktop. Please Help.
A: Get a regular desktop. There's no need for a touchscreen right now unless you are an artist. It may seem cool, and they work just fine, but the experience isn't that great. The entire Windows operating system and all the programs running on it were designed to be used with a mouse and keyboard. As such, it's a bit awkward and inaccurate to try using them with a touchscreen. That's why the iPad runs the touchscreen-oriented operating system (iOS) instead of Mac OS X, which is also mouse+keyboard oriented.
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