Computer Hardware

It is on the right-top of ur keyboard, beside the "F10" button. Maybe named "Pr Scrn".

If u wanna capture anything on the screen, i think the print screen button couldnot help u, press this button, u only get the full screen capture. So i recommend u try PCHand Screen Caputre. It could help u capture anything. Im using it, it is easy to use, even for a novice. I think it is pretty good. Hope it could help.

http://www.screen-capture-record.com/

you could use a current limiting diode such as a Zenner, or a current limiting resistor in series with the LED

l90 million tons of fish annually

lReplenishes the air with oxygen

Are you asking about the remote? Do you need to know how to program it?

None. The IrDA is only important if you are using an infrared transceiver on the serial port. This is seldom found in most computers.

To earn MCSE, you have to give 7 exams and each MCSE exams costs USD$50. CCNA has only 1 exam(composite), which cost USD$250. If you dnt want to take composite exam and want to take single exam then it wud cost you USD$125.

Some people prefer to disconnect the phone line from their modem when it is not in use. There is something to be said for this practice, as in rural areas it is not uncommon for surges to come over the phone line and zap the modem.

However, this risk can be mitigated by using a quality surge suppressor, most of which come with a phone line protection circuit which is easy to use. This, coupled with the difficulty of reaching the plug, as its on the back of most peoples computers, means that its not reasonably practical or necessary for most people to disconnect and reconnect the modem that often. Additionally since modems are so inexpensive and are so easy to replace, i wouldn't bother.

data cartridge, and minicartridges

Making a channel for passing data into or outside the PC .For example if I need to store a file in a USB flash drive from my PC .Then My PC would send the file contents in digital form to the USB flash drive through it data bus connection.

B16.5 Is limited in all respects to 1/2" - 24". So the answer is no. for a complete listing of the dimensions provided in B16.5 see www.texasflange.com

They are extremely hazardous to the enviorment and cannot be dumped down the drain

Using interrupts driven device drivers to transfer data to or from hardware devices works well when the amount of data is reasonably low. For example a 9600 baud modem can transfer approximately one character every millisecond ( 'th second). If the interrupt latency, the amount of time that it takes between the hardware device raising the interrupt and the device driver's interrupt handling routine being called, is low (say 2 milliseconds) then the overall system impact of the data transfer is very low. The 9600 baud modem data transfer would only take 0.002% of the CPU's processing time. For high speed devices, such as hard disk controllers or ethernet devices the data transfer rate is a lot higher. A SCSI device can transfer up to 40 Mbytes of information per second. Direct Memory Access, or DMA, was invented to solve this problem. A DMA controller allows devices to transfer data to or from the system's memory without the intervention of the processor. A PC's ISA DMA controller has 8 DMA channels of which 7 are available for use by the device drivers. Each DMA channel has associated with it a 16 bit address register and a 16 bit count register. To initiate a data transfer the device driver sets up the DMA channel's address and count registers together with the direction of the data transfer, read or write. It then tells the device that it may start the DMA when it wishes. When the transfer is complete the device interrupts the PC. Whilst the transfer is taking place the CPU is free to do other things. Device drivers have to be careful when using DMA. First of all the DMA controller knows nothing of virtual memory, it only has access to the physical memory in the system. Therefore the memory that is being DMA'd to or from must be a contiguous block of physical memory. This means that you cannot DMA directly into the virtual address space of a process. You can however lock the processes physical pages into memory, preventing them from being swapped out to the swap device during a DMA operation. Secondly, the DMA controller cannot access the whole of physical memory. The DMA channel's address register represents the first 16 bits of the DMA address, the next 8 bits come from the page register. This means that DMA requests are limited to the bottom 16 Mbytes of memory. DMA channels are scarse resources, there are only 7 of them, and they cannot be shared between device drivers. Just like interrupts the device driver must be able to work out which DMA channel it should use. Like interrupts, some devices have a fixed DMA channel. The floppy device, for example, always uses DMA channel 2. Sometimes the DMA channel for a device can be set by jumpers, a number of ethernet devices use this technique. The more flexible devices can be told (via their CSRs) which DMA channels to use and, in this case, the device driver can simple pick a free DMA channel to use. Linux tracks the usage of the DMA channels using a vector of dma_chan data structures (one per DMA channel). The dma_chan data structure contains just two fields, a pointer to a string describing the owner of the DMA channel and a flag indicating if the DMA channel is allocated or not. It is this vector of dma_chan data structures that is printed when you cat /proc/dma

In superconductors, no electricity is wasted because there is no resistance to the flow of electrons. In conductors any electricity not used, is wasted.

A biochip is a microchip made from biological macromolecules, especially DNA, rather than a semiconductor.

An Internet search engine such as Google or Yahoo.

The HP Pavilion is a line of consumer desktops and laptops manufactured by Hewlett-Packard.

A modem is needed for internet and other commuinications. It is needed to connect to the isp, it sends and decode transmittions. For more information, see: http://en.wikipedia.org/wiki/Modem

Yes, it is also and input device. I/O device.

Used for wiring, for decoration, some coinage, and for very long term building materials (roofing, gutters, etc). Some use in jewelry, and making of brass and bronze (and other alloys)

low voltage direct current

the waterfall model gives us prototyping , and spirl model gives

us product , so the set of the waterfall accommodat in the spirl to

gives us this product.

Network Interface Card(NIC) is used to connect a PC to the the network.

It is fixed into one of the computer's expansion slot.

In wireless network also NIC is used.It can be identified by a light.

yes. you should call your company Microsoft

(I am assuming you are asking "What are some examples of devices that use Integrated Circuits?") Note that an Integrated Circuit (IC) is normally regarded as a "component" itself. ICs are used in virtually every electronic device found today including, but by no means limited to: MP3 players, Computers, Computer Peripherals, TVs, DVRs, Radios, Cars, Microwave Ovens, and on and on ... hopefully you get the idea.

Use ReadyBoost. When you plug in ur usb then the autoplay comes rite? below that there is a thing called ReadyBoost. Use it.