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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 re install dell desktop speakers?
I have a Dell E173FPf computer and have just received the speaker to install on it. I do not see in the back the power jack to connect the speaker to. Please advise.
What is isp in microcontroller?
Application development for embedded systems is usually done on a desktop computer (PC), using a high level language like C or assembly language. After the executable binary has been created by the cross development tools, this binary needs to be uploaded to the target board. In most cases it will go to some kind of non-volatile memory, requiring specific programming procedures.
While in earlier days a chip had been removed from the target board and placed in a programming device, today's microcontrollers and external memory chips can be re-programmed without being removed from the circuit. This is called in-ciruit or in-system programming.
What is nvidia GeForce graphics?
this is the consumer level graphics cards from the manufacturer Nvidia. These are meant for running games and normal, everyday applications like the internet.
The other line nvidia makes is called the Quadro series which is a workstation call graphics card. these are made for doing complex calculations like 3D modeling
Describe the factors on which performance of cmos depends?
There have some factor, By that factor a computer can perform very well. These are given below;
1. Processor.
2. CPU
3. RAM
4. ROM
5. DVD
6. Hardware
7. Software
etc
What are three processes necessary to keep track of your home CD or DVD collection?
|Input |Processes |Output |
|Music media source |1.Organize Title/Genre inputs |Music Title (info) |
|Title/ Rating | |Music Rating (info) |
|Movie media source |Music media information | |
|Title/ Rating |Album title/ Rating |Movie Title (info) |
|
| |Movie Rating (info) |
| |Movie media information | |
| |Movie title/ Rating | |
|(Music media source) |2. Organize type of media disc and |Music listed by media type |
|MP3 disc |format from inputs |CD (info) MP3 (info) |
|Music disc | |Tracks (info) Songs (info) |
| |Music sources |Playtime (info)...
You should try to clean the inside of your computer tower. The same thing happened to me. Vacuum it and wipe it off.
What does the stripe on PATA cables indicate?
On PATA cables the stripe down one side indicates which side is pin 1.
There may be one or more things failing in your system.
The power supply may be failing, your motherboard may be developed bad capacitors, or your memory may be faulty.
What are the inventions of the 21st century?
Antibiotic and antiviral drug resistance, synthetic biology, stem cell therapy, personalized medicine, environmental bio-remediation, environmental bio-terrorism monitoring, agricultural viability, marine versus terrestrial sources of bio-energy, etc., are some non-technological inventions. These inventions are of the 21st century.
How can I solve Problem with my Acer Aspire built-in web-cam?
It will depend on what exactly is the problem. If it is not being detected by the operating system, it can be a driver problem which may need to be reinstalled. If you have been using it with only one application, try it with other programs test if it is working in different applications. You can also go through control panel - scanners and cameras to see if the device is working properly and there is no conflict with other hardware.
- Neeraj Sharma
If your computer keeps crashing and making weird noises is it dying?
it is possible, I would have to hear the noise or read a really good description of it to know for sure.
there are 2 main things that make noise in a computer when they die, the hard drive or a fan, and both can cause crashing
Here is a tip to figure out which is which.
Open the case. Start up the computer. wait for it to make this noise. then VERY CAREFULLY stop one of the fans with your fingers (the fan will not hurt you but BE CAREFUL not to touch ANYTHING else in the computer or you may get a nasty shock). Do this to all fans in turn, start with the CPU fan (the one on the motherboard) as this one is the most likely culprit for crashing. If the noise does not stop when stopping any of the fans, there is still one fan left that is hard to reach. The power supply fan (DO NOT attempt to stop this fan, the power supply can kill you) put your ear close to the power supply, then close to the hard drive, figure out which one is louder and you have your answer. Replace the fan that makes the noise, or if it is the hard drive I'd recommend taking it to a repair shop so they can back up all your data
What is the alternative for a scanner to scan a photo which is already printed?
Well, some photocopiers can double as scanners. Some can even be all-in-one copiers, scanners, printers and fax machines. You'd be surprised at what technollogy can do these days......
How do you undo everything in your Acer aspire?
There is a thing called system restore which resets everything on you computer back to factory settings. Or you wipe your hard drive and reinstall your OS (operating system). Better option is to do system restore point which brings your system pretty much back in time to a point where you have not made those changes, but you have to create restore point at that time.
It's the process in which a heat sink dissipates heat
What is Lenovo UltraBay. How to use it and what are the limits of its use?
A Lenovo ultrabay is an expandable slot on Lenovo y400 and 500 laptops. From what I know it is a user accessible pcie 2.x slot. The limits of the ultrabay are mainly that it can only use the cards that Lenovo releases for its use, and when using an nvidia graphics card in SLI only one graphics card will be used when on battery.
Can 2 AMD Radeon 6990 GPUs fit in NZXT's Phantom Enthusiast Full Tower Case?
It depends, measure your cards' length, if its under 35cm it'll fit.
What are the principal elements of a public key cryptosystem?
A "public key cryptosystem" would be one using an asymmetric encryption algorithm. It is related to Public Key Infrastructure (PKI) and sometimes confused with it. The principal elements could be categorized as:
1) the algorithm for generating the asymmetric key pairs (private key and public key)
2) the algorithm to encrypt a message using the private key or to "sign" the message
3) the algorithm to decrypt a message using the public key or to authenticate it from the digital signature
4) a means to publish the public key
5) a means to authenticate that the public key actually belongs to the entity it purports to belong to - sometimes omitted in "public-key cryptography". PKI provides a means to achieve this.
There are many different public key encryption algorithms. Some of the more popular ones are: SSL (Secure Socket Layer), TLS (Transport Layer Security), PGP (Pretty Good Privacy), and GPG (Gnu Privacy Guard). A mathematical algorithm is used to generate a private key which is held by the owner while the public key is provided to everyone that the owner wants to communicate with. The owner of the private key uses it to encrypt the message. Someone receiving it can only decrypt it by using the author's public key. This provides some authentication of the source of the message - if the recipient is confident that the public key they are using really belongs to the purported author. A user's public key can also be used to encrypt a message so that only the holder of the corresponding private key will be able to decrypt it. This provides confidentiality for the sent message. Two people can achieve secure communications by using each others public keys to encrypt messages so that only the recipient can read each message.
Asymmetric encryption algorithms can also be used to digitally sign messages. In this case a message digest is created and then encrypted using the private key. The recipient can duplicate the message digest, then decrypt the digital signature using the originators public key and compare the two digests. If the message has been tampered with, then the digests will not match.
Authentication of the public keys, i.e. being certain who a public key really belongs to, can be achieved in different ways:
- a web of trust - you get public keys from people or entities you personally know and trust and build up a "key ring" of those keys. If someone whom you have a public key from sends you a public key for another entity, you can decide whether or not you trust them enough to add the new key to your key ring. You have to install each certificate manually in order to be able to use it with the other person.
- PKI - in this scenario, you have a Certificate Authority (CA) that vouches for the ownership of a public key. PKI permits each certificate to be signed only by a single party: a certificate authority (CA). The CA's certificate may itself be signed by a different CA, all the way up to a 'self-signed' root certificate. These root certificates are maintained by a "Registration Authority" (RA). Root certificates must be available to those who use a lower level CA certificate and so are typically distributed widely. They are for instance, distributed with such applications as browsers and email clients. In this way SSL/TLS-protected Web pages, email messages, etc. can be authenticated without requiring users to manually install root certificates. Applications commonly include over one hundred root certificates from dozens of PKIs, thus by default bestowing trust throughout the hierarchy of certificates which lead back to them. An important additional feature is needed for this approach. You must also have a mechanism for revoking expired or compromised certificates and getting that information out to users.
- A third alternative is Simple Public Key Infrastructure (SPKI). SPKI does not associate users with persons, since the key is what is trusted, rather than the person. SPKI does not use any notion of trust, as the verifier is also the issuer. This is called an "authorization loop" in SPKI terminology, where authorization is integral to its design. In this case, the entity originating a connection with a subsidiary node sends a message including the key it plans to use for communication with the subsidiary node. Each entity is identified by its public key.
Before opening the case of a brand name computer such as a Gateway or Dell consider the what?
The Warranty
Why are some CPUs faster than others?
speed of a computer depends on its hardwares configuration i.e. RAM, Processors etcs. So those computers are more faster that have high hardware configuration ( high speed RAM with high storage, high speed Processor)
What is the measurement of frequency of a system bus and CPU?
The frequency of activity on a motherboard is measured in megahertz (MHz), or one million cycles per second. The processor operates at a much higher frequency than other components in the system, and its activitiy is measured in gigahertz (GHz), or one billion cycles per second.
What is bootex in your pen drive and what if i delete it?
Its a file that tell you when windows has cleaned up, or fixed something. It tells you EXACTLY what commands it has performed. It is fine to delete it. (Mostly used on USB Drives)
Does an Adesso cybertablet z12 need to be hooked up to a computer to use?
yes, if you have vista you can install the photoshop and the macro key manager and plug n play. i just got one and am slowly figuring it out infact im hand wrighting the message so lets see how it comes out. and if any1 else hase this i cant figure out how to use it for drawing or anything yet
Just waht the name implies a set of earphones with a built in (face mike) on a sort of boom in front. they are or were used by commercial telephone operators, traffic dispatchers, and similar commuhicaitns jobs where one wants hands-free convenience when monitoring traffic, for example. Does that answer your question?
What will happen if you sleep by keeping your laptop under your pillow?
Placing you laptop under your pillow is not a good thing to do. It will not hurt your sleeping but if by accident you leave your laptop switched on then, if it is under a pillow, it may overheat (the air can not get to it to cool it) and this may damage the laptop or even cause a fire in your bead. A fire in your bead while you are asleep would be very very dangerous.
