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Computer Hardware
Computer hardware is a general term used to refer to all the physical parts of a computer. Internal hardware devices include hard drives and motherboards, while external hardware devices include monitors, mice, keyboards, and printers.
11,849 Questions
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What can a cordless trackball be used for?
A cordless trackball is a type of human interface device for the computer. Specifically, it is an input device used to control the mouse cursor on a computer screen buy way of spinning a ball on top of the device with your fingers.
How are pointing and scanning devices different?
A pointing device just changes your location on the screen (moves the cursor). A scanning device converts printed output into digital input for processing by the computer.
Why can't this external hard drive be used for PVR functionality Bell?
I'm using a My Passport and when i connect it it says it has to be reformatted but then it says there was an unknown error and it doesn't work. I don't know if it's the hard drive itself or what.
more RAM
Why won't my CD-rw allow you to rewrite to it or delete?
Hello, In Order to Rewrite the CD, Nero or you can Enable Recording by right cliking on the drive, > Properties> Recording tab Enable. OR U require Sonic, with DLA option, which can allow you to delete files from the CD-RW
It's hard to tell because there are so many unknown parameters. But good brands are Linksys, D-link, Cisco. Depending on requirements the router which can satisfy your requirements can cost from $100 up to couple thousands.
- UV (ultra violent) can damage your eyes
- Also if your in the sun which has UV rays in it, it can give you a sunburn
- Can affect human health
- chemical reactions
So make sure to wear sun screen, and sunglasses, if you don't want to get any of these! ;)
Why does your light on your e-machine computer keep blinking?
=because the computer you cant charge it so when you plug it into the wall the energy you take out of the socket is being use right away:(. Or if that doesn't answer your question to let you know the computer is in full function and capacity . And that was an Excellent question!!!:(=
What is the difference between leadership and administration?
Although similar, there are connotative differences between leadership and administration. Leadership is the "positive" version of the term administration.
How do you delete your password in the acer computer?
Login with Current or different user(if U forgot the Password) Eg: Administrator Go to control panel>user accounts > Change password Or reset the password after loging to different user(administratior account)
What do the X-speeds of CDROM drives indicate?
Quoth the wikipedia.... (page linked below)
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The rate at which CD-ROM drives can transfer data from the disc is gauged by a speed factor relative to music CDs: 1x or 1-speed which gives a data transfer rate of 150 kilobytes per second in the most common data format. By increasing the speed at which the disc is spun, data can be transferred at greater rates. For example, a CD-ROM drive that can read at 8x speed spins the disc at up to 4000 rpm (compared to the 500 rpm maximum for 1x speed), giving a transfer rate of 1.2 megabytes per second. Above 12x speed, vibration and heat can become a problem. CD-ROM drives above this speed tackle the problem in several ways. Constant angular velocity (CAV) drives spin the disc at a constant rate, leading to faster data transfer when reading from the outer parts of the disc, but slower towards the center. 20x was thought to be the maximum speed due to mechanical constraints until Samsung Electronics introduced the SCR-3230, a 32x CD-ROM drive which uses a ball bearing system to balance the spinning disc in the drive to reduce vibration and noise. As of 2004, the fastest transfer rate commonly available is about 52x or 10,350 rpm and 7.62 megabytes per second, though this is only when reading information from the outer parts of a disc. Future speed increases based simply upon spinning the disc faster are particularly limited by the strength of polycarbonate plastic used in CD manufacturing, though improvements can still be obtained by the use of multiple laser pickups as demonstrated by the Kenwood TrueX 72x which uses seven laser beams and a rotation speed of approximately 10x. CD-Recordable drives are often sold with three different speed ratings, one speed for write-once operations, one for re-write operations, and one for read-only operations. The speeds are typically listed in that order; ie a 12x/10x/32x CD drive can, CPU and media permitting, write to CD-R discs at 12x speed (1.80 MB/s), write to CD-RW discs at 10x speed (1.50 MB/s), and read from CD discs at 32x speed (4.80 MB/s). The 1x speed rating for CD-ROM (150 kB/s) is different than 1x speed rating for audio CD (172.3 kB/s) and is not to be confused with the 1x speed rating for DVDs (1.32 MB/s). -------------------------------------------
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It all depends on the brand
Difference between usb data cable and usb charging cable used for mobile phone fly b430?
What's a USB charging cable? It's a USB cable with the 2 data pins shorted out.
Whether we're talking 1.0, 2.0 or 3.0, there are still two kinds of cables. The ones that ship with phones are called Data cables. For wall chargers, you're better off with an honest to goodness charging cable. All the cables I've collected over the years came with phones. So they're all data cables. Data cables don't have the data pair shorted out. Charging cables do.
After figuring this out, I dragged out a bunch of old wall chargers that I couldn't get to work with my Blackberries over the years. With the charging cables they all work.
Looking around the internet reviews, it looks like an awful lot of people don't understand this distinction. As far as I can tell, any wall charger will work with any phone or tablet as long as the Amp (wattage) requirement is met. No mystery. You'd think all the folks that make USB wall chargers would short out the data pair to avoid all those negative comments on the internet about their charger not working with this or that
Can you use a crossover network cable to connect a laptop to audio receiver?
Assuming you mean a TIA/EIA 568A to B (or B to A), these carry digital data that cannot be used by an audio receiver.
If you want to transfer audio, the laptop probably has a stereo 3.5 mm socket for each of its audio in and out, so you'll need a lead (or leads) with 3.5 mm plug(s) at one end, and the plugs your audo gear uses at the other - most likely RCA connectors.
Can a bad power supply damage a hard drive?
Yes, it can. And not just HDD. PSU provides power to every component of your computer. Would there be any electrical problems in your house it can do potential damage to your PC. Tip: get the UPS
Why is it important that computers fans not be clogged with dust?
To maintain a suitable operating temperature inside the tower, desktop or lap top the hot air must be moved out and replaced with cooler air from outside the machine by the fan. If the fan is clogged the ability to move hot air out and cool air in is reduced and can cause your components to overheat.
The components of a computer can be adversely affected by high temperatures. These are designed to work within a given temperature range and exceeding this temperature may damage them or cause the work improperly.
Does a crossover cable connect a switch to a PC?
No, usually that would be a straight-thru cable because the signal is crossed over by the switch itself.
Will the dell optiplex 780 mt support 16GB of ddr3 memory in?
I have installed a 4x4GB Mushkin Essentials RAM kit into a Desktop and Mini-tower form factor.
Both detect the correct amount in the BIOS, I am running one as a lab for running Hyper-V to use for SCCM 2012 / SQL on the same box.
What is the main function of the ALU?
The function of the Arithmetic Logic Unit is to perform the arithmetic operations and boolean logic operations needed during instruction execution.
Some Arithmetic Logic Units also provide temporary storage for operands and/or results of these operations in registers or accumulators, others do not provide any temporary storage (depending on the computer's architecture and/or implementation).
What part of the CPU captures graphic data directly from a document for input into the computer?
There is no part of the CPU that captures graphic data directly from a document for input into the computer.
This is the responsibility of an external peripheral device called a document scanner.
The CPU is normally not involved in capturing graphic data though it may be involved in controlling the device which does the graphic input. Graphic input can be done with a digital document scanner, digital camera, or a printer or fax machine with the ability to scan a document and feed it into a computer. Some of these devices are called 3-in-1 or All-in-One printers.
Many of these devices actually have embedded computers with their own CPU controlling the device. Some such devices have internal storage where they can keep the captured graphic data until it can be moved to a computer. Others have a simpler design and need to be connected to a computer to work at all.
These devices connect to a computer in a number of ways and involves a program and a CPU. One direct way is to use a USB cable for controlling and transferring data from the device. An older method was to use a parallel connection on the computer. More capable devices do networking and can be controlled by, and transfer data to the computer using a network cable or WIFI.
Once the captured graphic is transferred into the computer it can be viewed, modified, copied, emailed, and printed. If it is a scanned in text document, it may also be converted into a real text/word document using OCR (Optical Character Recognition) software.
