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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

How do you reset a Toshiba laptop battery meter?

1. The battery should be loaded completely to 100%

2. then you will have to modify the powersaving profile like following -> hibernation & standby off, disable the options which shuts the machine off when the batt. level off so the machine should shut off when the battery is on 0%

3. Let the machine work for how long the battery lasts

4. After the machine shuts off by itself when the battery is COMPLETELY empty let the battery charge (the notebook should be powered OFF)

5. Check if it worked and repeat it if the result does not satisfy you

6. In case of NO success I would replace the battery,

Which utility lets a technician know if there is a problem with a piece of hardware?

POST Test: (Power on self test) when the computer is booted up it performs this test, if it beeps once then it means that all the hardware is working correctly and the POST test has been passed, if it beeps more than once then there is a problem with the hardware, refer to the beep codes in the user manual.

How to set up a new widescreen LCD monitor with an old HP Pavilion XE783 desktop to get the correct aspect ratio that is to avoid horizontal stretching of the images?

Search for the monitor's model number on Google and find out it's aspect ratio. Then write click on your desktop and go to Properties. Go to the Settings tab and adjust the screen resolution slider to any resolution where the ratio of the first number to the second is equal to your monitor's aspect ratio.

Or just try trial and error to find the best resolution.

How parallel port is used in turbo c?

Parallel port is the most simplest port of computer to use. It is too simple to use in Turbo C++ .

there are two types of parallel ports of computer

1. SPP (standard parallel port) = 0x3bc

2. ECP (Enhanced communication port) or EPP(Enhanced parallel port) = 0x378

parallel port is divided into three ports

1. DATA port = 0x3bc OR 0x378

2. control port = 0x3bd OR 0x379

3. status port = 0x3be OR 0x37a

data port is consists of 8 pins and use 8 bit binary code for controlling..

D7 D6 D5 D4 D3 D2 D1 D0

128 64 32 16 8 4 2 1

1 1 1 1 1 1 1 1 = 255..................send 255 int as data for binary all 1s

D7 D6 D5 D4 D3 D2 D1 D0

128 64 32 16 8 4 2 1

0 0 0 0 0 0 0 0 = 0..............send 0 int as data for binary all 0s

D7 D6 D5 D4 D3 D2 D1 D0

128 64 32 16 8 4 2 1

0 0 0 1 0 0 0 0 = 16............send 16 int as data for binary 1 in pin (D0)

D0= pin 2

D1= pin 3

D2= pin 4

D3= pin 5

D4= pin 6

D5= pin 7

D6= pin 8

D7= pin 9

outp(port,data); is the function use send data to the ports.

where ,

port is the integer value of port..... 0x378 or 0x3bc or 0x379 or 0x3bd or 0x37a or 0x3be.

data is an integer value to send ..ranges from 0 to 255

data=inp(port); is the function to receive input from port.

data is integer data .....0-255

port is the integer value of port..... 0x378 or 0x3bc or 0x379 or 0x3bd or 0x37a or 0x3be.

Example:

#include<stdio.h>

#include<conio.h>

#include<dos.h>

void main (void)

{

int data=0, portin=0x37a, portout=0x378;

//send 255 to port....using data pins.

data=255;

outp(portout,data);

//input from port using status pins...

data=inp(portin);

printf("\n%d",data);

getch();

}

In this way we control parallel port in turbo C++

What is the use of decoder in computer architecture?

For the computer to read the information as it only reads 1/0 which then brings you to binary.In both the multiplexer and the demultiplexer, part of the circuits decode the address inputs, i.e. it translates a binary number of n digits to 2n outputs, one of which (the one that corresponds to the value of the binary number) is 1 and the others of which are 0.

It is sometimes advantageous to separate this function from the rest of the circuit, since it is useful in many other applications. Thus, we obtain a new combinatorial circuit that we call the decoder. It has the following truth table (for n = 3):

a2 a1 a0 | d7 d6 d5 d4 d3 d2 d1 d0 ---------------------------------- 0 0 0 | 0 0 0 0 0 0 0 1 0 0 1 | 0 0 0 0 0 0 1 0 0 1 0 | 0 0 0 0 0 1 0 0 0 1 1 | 0 0 0 0 1 0 0 0 1 0 0 | 0 0 0 1 0 0 0 0 1 0 1 | 0 0 1 0 0 0 0 0 1 1 0 | 0 1 0 0 0 0 0 0 1 1 1 | 1 0 0 0 0 0 0 0

Here is the circuit diagram for the decoder:

Is there an E machine recall on model T2885?

Try http://www.totalrecallinfo.com for a recall within the last year, if before that may have to contact company.

Are CD R discs for movies or music?

Yes.. You can either load Audio or Video in CD-R Disk..

Where do you get your host name for your router?

Most home network routers don't have a host name, although it is possible to give it a host name using a DNS server. I'm assuming that you wish to configure the router, and for that all you need is it's IP.

You need to be connected to your router to perform these steps (either by WiFi or ethernet cable).

In Windows 7 click start type "cmd" without quotes in the search field & hit enter.

For Windows XP click start>run type "cmd" & press enter

Inside the the command prompt (a blackbox with white text) type "ipconfig" without quotes and press enter.

You will be presented with you network info, look for "Default Gateway" next to it there will be your routers IP (e.g. 192.168.1.1), your number may be different.

After you have gotten the number type it into the url field of your web browser and you should see a configuration page for your router.

What does PC cards contain?

very little these days, most devices have migrated to the USB bus and pc cards are a historic device. with integrated devices on the mainboard such as video and audio, pc cards have become mostly obsolete except for industrial computers which require specific interface cards which is too costly to develop for limited use.

Should i use voltage stabilizer for my computer though have ups?

if you are using UPS then no need to use stabilizer.because your computer gets supply from ups after many process,even if you are getting fro ups.when outlet power is available ups in online mode and it feeds your computer from direct supply authority,but ups has some design to stabilize this voltage,

Is an output device where it translates binary coded information from the processor into analog information you can understand?

Not necessarily. An output device is simply something that takes data out of something else. There are certain output devices that send data to humans. (E.G. A monitor, speakers, a printer, etc.) There are also output devices that simply interact with other electronic equipment. (E.G. A flash drive, a cell phone, an mp3 player, etc.)

Different types of hardware devices?

"Hardware devices" usually refers to such items as hard drives, ssd drives, optical drives, graphics cards, add on cards such as ethernet cards, usb cards, memory modules, and the list goes on and on.

What is Dell computers code of conduct?

In my experience, "Sell Computer. Wait for email 3 months later from customer complaining computer no longer turns on. Ignore email. Wait for more tech savy (that's me) friend (that's me) to email in with legal threats. Email back with a very unhelpful email, not answering a single one of the questions asked.". The saga continues, 9 months after first purchase... Don't buy Dell. Ever.

Where can you get a missing hpzjrd.dll file?

I've tried the other 'cures' below without success, or else being asked to purchase software! (wonder is this a conspiracy between hp and pcfix software companies???) Anyway, I have just removed the calling program hphmon06.exe and voila! no more message.... This appears to be a H.P. file. I would suggest you reinstall the software or if that doesn't work visit their web site and click support. I just uninstalled all of my HP photo, PSC, etc. programs and then when I rebooted I got an error message that said "The application has failed to start because hpzjrd01.dll was not found. Reinstalling the application may fix this problem." I thne searched the recycle bin and then the entire drive using both the full file name and the only "hpzjrd" with no results. I also searched the HP website and they have nothing there either. The way it APPEARS right now is that it was a direct result of uninstalling those HP programs AND that no harm is done except I may have to live with seeing and closing that error message every time I boot up. I supect though that if I find what it is trying to load and get rid of that command I will be o.k. Click on Start > Run and type MSCONFIG and click OK. Click on Startup tab. Uncheck all entries starting with hp or related to hp. Click Apply and OK. Restart computer. On restarting you will get msg that system is in selective startup. Place a checkbox next to Do not show this message again. The error message will not reappear again now. go to hp.com simple Just Go to dllsearch.com and get your file from there and paste it in two locations c:\windows\system & your installed directory this is for windows 98 for 2000 or xp past it in c:\winnt\system and your installed directory You can find the update on the www.hp.com website problems and troubleshooting at the top of the issues is this problem. It tells you to go to the start menu under hp and do hp software update which should update the program and fix any problems You need to run these 6 essential steps to remove all the spyware on your computer.

1. Run Deckard's System Scanner (DSS)

2. Run the vundo and combo fix

3. Run Malwarebytes Anti-Malware

4. Run the anti spyware removal programs spybot

5 Run Superantispyware

6. Run a complete scan with free curing utility Dr.Web CureIt!

Install threat fire which will enhance your antivirus protection

What is the difference between a power conditioner and a surge protector?

A surge protector responds to a microsecond transient. Nothing (such as a circuit breaker) can block a surge. A surge simply blows through anything that may try to block it. Anything that works by disconnecting takes milliseconds to respond - long after a microsecond surge do damage.

Completely different devices are called surge protectors. Some only address one type transients made irrelevant by what is inside appliances. Others are for all types of surges. Protectors that would block or stop a surge do almost nothing useful. A completely different device, also called a surge protector, is for all types of surges. It even connects direct lightning strikes harmlessly to earth so that nothing inside a house is damaged.

A line conditioner is a subjective term that can apply to most anything. For example, a knot tied in a wire is a power conditioner. Not a very good one. But it does impede high frequency noise.

To define a power conditioner means an electrical anomaly must first be defined. A short list of anomalies include reverse polarity, RFI, high voltage, harmomics, EMC/EMI, frequency variation, noise, floating ground, hum, pops, power factor, sags, surges, and blackouts. Nothing addresses all.

Due to protection inside all appliances, some anomalies are already made irrelevant. Defining which anomaly each power conditioner addresses. For example, voltage can drop so low that lights dim to 50% intensity. Circuits already inside all electronics solve that anomaly. But that same anomaly might be harmful to a motorized appliance such as the refrigerator. So a power conditioner for that anomaly might be obtained.

Even voltage spikes of up to 600 volts are made irrelevant by 'power conditioner' circuits already inside 120 volt electronic appliances. Some anomalies are already solved.

Obviously, a surge protector is just another type of power conditioner. Power conditioner is a vague expression that successfully promotes sales. To say more means learning what anomalies that conditioner actually addresses. For example, no power conditioner blocks or disconnects fast enough from a surge. Not even a power conditioner also called a surge protector.