Interrupt Requests are method for handling requests from components such as Keyboard, Mouse, Clock etc & get attention of Processor.
Each specific components is assigned IRQ number.
How can you input data and files into the computer?
When audio signals (music, speech, etc) are detected by your computer's microphone, an analog (or continuous) electrical signal is generated. Computers work with digital data, so...there is a device in most computers called an analog-to-digital converter. This chip (or part of a chip) has the ability to sample the analog signal, calculate its amplitude, and return the value to a program (which the displays it, stores it on disk, mixes it, or does a multitude of other things).
This hardware capability is usually built-in to a computer or is a part of a sound card (like a SoundBlaster, etc), while the program is usually something like a Windows' Sound Recorder, audacity, etc.
These are tab stops. In Microsoft Word you can create a tab stop by clicking and dragging on the horizontal ruler, where they appear as flipped-over black L or T marks.
If there are faint marks below the ruler at 1-inch intervals, these are the default tab stops.
What is the command used to change a FAT32 partition to an NTFS parition?
1. Click Start > All Programs > Accessories, and then click Command Prompt.(or start > Run >type "cmd"
2. At the command prompt, type the following, where drive letter is the drive that you want to convert:
convert drive letter: /fs:ntfs
For example, type the following command to convert drive E to NTFS:
convert e: /fs:ntfs
Note If the operating system is on the drive that you are converting, you will be prompted to schedule the task when you restart the computer because the conversion cannot be completed while the operating system is running. When you are prompted, click YES.
3. When you receive the following message at the command prompt, type the volume label of the drive that you are converting, and then press ENTER:
The type of the file system is FAT.
Enter the current volume label for drive drive letter
4. When the conversion to NTFS is complete, you receive the following message at the command prompt:
Conversion complete
5. Quit the command prompt.
Do fashion designers use computers?
In the world of fashion design, computers are used for a wide variety of things. In the actual design process however, the are most commonly used as drawing pallets and editors (photo shop), research tools (WGSN), and/or pattern drafting equipment.
Why human teacher is better than computer?
we can interrupt with human teacher whereas it is not possible with a computer teacher
What information do cookies hold?
They mostly contain readable text, though the exact contents depend on what sites you visit. Cookies often contain log-in information, so that is how sites know you are still logged into them. They may also contain navigation information.
My best guess would be that, because the paging file is stored on the hard drive and considering that the hard drive is the slowest medium to retrieve infromation from, that it is caused by the computer looking for the correct information from a slower source.
What is the reason why keyboard are not arranged alphabetically?
The keyboard is modeled after the typewriter. When the typewriter was first set up, consideration was given to the speed with which the fingers could tap out the keys. Since the letters "q", "z", and "x" are infrequently struck, these letters were assigned the nondominant hand (the left hand in 90% of individuals), and in corners that were not as easy to reach quickly. The more common letters were place in easy reach of the hands. In a nutshell, this is how the "QWERTY board" came into existence.
An interesting aspect of this history: The QWERTY typewriter was designed in part to create a degree of intentional inefficiency. Since early typewriters tended to jam if adjacent keys were hit concurrently or nearly so, commonly used combinations (such as t-h) were separated to reduce the likelihood of such jams. Also, the arrangement of keys favors left-handed typists at the expense of the more numerous right-handed ones. The result is a suboptimal design, which has led to many subsequent attempts to re-introduce a more efficient configuration; however, the converging vested interests of typing teachers and generations of typists taught touch-typing on the QWERTY keyboard has prevented their widespread adoption, so the design is likely to stay with us for some time despite its flaws.
For those interested in the history behind this issue, the Wikipedia page on QWERTY is worth a read: http://en.wikipedia.org/wiki/QWERTY.
What is a computer system's organization?
Storing and managing information is an important task of the computer system. Since the information plays an important role in a computer system, its logical and physical characteristics are also a matter of interest as these effect the efficiency of programs using it.
Computer system are comprised of input devices, output devices, processing devices, and storage devices. Input devices would include a keyboard, mouse, microphone, sound card (if it uses a microphone), and read-only storage devices. Output devices would include the video card, monitor, sound card, and speakers. Processing devices would include the CPU, and the FPU. The video and sound cards could be considered processing devices, since they also process images, video, and sound. Storage devices would include ROM, RAM, memory sticks, memory cards, the hard drive, and CD/DVD burners.
Where a peer to- peer networking is appropriate?
Usually as a rule of thumb a peer to peer network is appropriate when the number of clients is about 10 or less, and you don't need a dedicated technician to run the network. In addition, a peer to peer network is best used when the growth of the network is small or slow as well.
Small departments and companies successfully use peer to peer networking because they do not require anything more costly or sophisticated.
What is the advantage of e-learning?
Today's learners want consistent, mobile, and personalized content. And this is fulfilled with the virtual model of learning or e-learning mobile app, where students can learn at their pace and requirement.
Let's have a look at the advantages of online learning.
• Online learning supports the global needs of learners.
• e-Learning mobile application development company has designed a few apps that enable teachers to take lectures at any hour and any place.
• Provides access to renewed content
• Online learning is cost-effective.
• It is more consistent and scalable.
Below are a few steps through which you can develop your own e-Learning mobile app:
#Choose your niche
The e-Learning mobile app offers you various niches to choose be it Science, English, or Maths. In order to develop an e-Learning application, you should know the area of interest you want to build your application for. For example, you might want to develop an application that targets all the educational needs at one-stop or incorporate AI features, but all it takes to choose one niche.
#Develop the Idea
No successful businesses were created without an idea. You are the one who decides how the application's core will be whether you want to add features for more than learning, etc. And make sure the idea you're developing should have diversity, publicity, geography, communication, time, and price.
#Find your time
The educational app takes time and a huge budget for developing, it takes time to set and choose features that stands robust for your educational application.
#Conduct A discovery page
After you have decided on the interface of your application, conduct thorough research to evaluate the existing e-Learning software and resources to better understand users needs.
How do you have a good free website?
You can easily make a free website by using the free website builder offered by many sites.
If you want to have a free website you can only have a subdomain which is no different than a full domain, but you have certain limits such as limited bandwidth for your pictures videos and music and all that good stuff like that and whatnot.
What does the word edit means to the computer?
To edit is to change anything in the document. If you are adding more text, or fixing spelling mistakes or moving paragraphs or anything like that, you are editing a document in Microsoft Word.
What are major components or workstations?
Motherboard , CPU (central processing unit), RAM(random access memory) :)
The best computer systems available would have to be Windows OS or Apple OS. These two systems differ on many points, based on user preferences. One should consult a sales rep. at an electronic store before making any purchases.
Known as the brains of the computer?
This is known as the CPU, also known as the Central Proccessing Unit, or just Processor.
What are the hazards in a computer environment?
Here are some of the common hazards experience by computer technicians and computer users:
1. Sharp objects. If you are working inside a computer, there may be sharp edges from protruding hooks or the case having been opened many times. You have to be careful where you sit a computer, since if it starts to fall and you grab for it, you could cut yourself or drive parts into your hand.
2. Electric shock. This is why it is important to unplug the power cord and any modem or network cords before opening the PC. Ideally, it may be a good idea to unplug any external peripherals as well in case they malfunction and send high voltage to the PC. Even a dial-up modem that is plugged into a phone line can pose a risk. You might accidentally touch it during an incoming call. The voltage on phone lines spike when the phone rings, thus causing an electric shock risk. If you open up the power supply (while unplugged of course), you might need to short circuit the large capacitors to discharge them to prevent shock.
3. Injuries related to emotional outbursts. You may be tempted to punch or throw a PC, but that is a bad idea. Thrown PCs can hit innocent bystanders or ricochet. One man was jealous of his girlfriend's time on the computer. If you kick or punch a CRT monitor, there is the rare chance that you will break the picture tube and come into contact with over 15,000 volts. Or more likely, you break the tube from the brackets, possibly break its neck in the back, and perhaps even start a fire.
4. Fire. This is rarely a problem, but the risk is there. It is possible to use too many peripheral splitters inside the computer for instance and cause the wiring to burn. It is possible to use the wrong type of plugs for internal components in some situations. For instance, you might use the 4-pin plug in an 8-pin motherboard connector, and it might work. However, the wiring might get too hot. Or, you might have too many things plugged into a power strip. They are supposed to have circuit breakers and kick if you overload them, but there is no guarantee that they will.
The company's main business is in infrastructure, consumer products, electronic devices and components including TV's and laptops for everyday consumers.
What are the programs that control a computer called?
Main program to control the whole computer is a system software, also called operating system. But to understand what any single device says a system software needs small program called a device driver, which is particular for each single device. A device without a driver driver can't properly work with a computer.
Find your laptop's model number, it is usually on the bottom or sometimes behind the battery. Enter this on google or on your manufacturer's website. Sometimes forums dedicated to that manufacturer are helpful as well.
What are the benefits of using short cuts?
Shortcuts are there to give you easier access to the program. Typically program files are stored in the Program Files folder. Having a shortcut on the desktop and Start Menu let's you access it easily without messing with the other components in the folder by accident.
What is the punishment if you are caught hacking into another computer?
Like any crime it depends on the country in question. Though with hacking you may be subjected to double the punishment. For example, you hack the US government but live in Ireland. Then Ireland will probably punish you but you can also be certain that the US government is going to want to extradite you for punishment there also. Some countries are very strict on hacking while others will protect their hackers - which has led to many rumours and conspiracy theories but that's a different question altogether.
Other factors will also be taking into account, such as was it just some guy sitting in his bedroom doing it so he could brag to his mates, or was it somebody trying to rob a bank or hack FBI for secret documents. The punishment for accessing United States government files is 7 years in federal prison and fines and for deleting these files 10 years in prison and fines. These fines can be in the millions.