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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 can you know if your computer supports USB 2.0?
Right click on My Computer. Scroll down to Properties. Then, in the resulting dialog box, click on Device Manager (under the "Hardware" tab.
If your computer has the hardware to support USB 2.0, you should see a sub-entry for an "Intel (or other) USB 2.0 Enhanced Host Controller" under the "Universal Serial Bus Controllers" main entry.
How do you install a USB2 PCI?
Power down and disconnect the computer and remove the side. Install the card in one of the free PCI slots and tighten the retaining screw on the USB 2 card.
Put the cover back on, re-connect the power and boot-up.
If it came with a driver installation disk...
Windows may say it's found new hardware and ask if you want to install the drivers for it. Click NO.
When boot up complete, insert the driver installation CD in to the CD drive. It should start up, then chose the required option.
You may have to re-start your PC afterwards.
If it doesn't come with an installation disk then follow the instructions given when Windows reports "New Hardware Found".
What do the hardware and software form together?
Hardware performs the computations, software is a set of instructions we use to tell the hardware what we want it to do.
Basically hardware is what carries out the work, and software is what we use, and what we program into it.
how does hardware work?
If the Q. is what is the HW-SW interface which enables us to use both of them as a system, i would say the instruction set.
The Instruction set is the HW-SW interface , instructions are "signals" for the hardware and at the same time appear as instructions to the programmer.This is the bridge between and us the machine.
What is the function of RS232?
'RS-232' (Recommended Standard 232) is a Standard American format for serial data transmission by cable, such as from computer terminal to modem.
RS-232 transmission utilizes a distinctive 25-pin connector, but under most circumstances only a few of the 25 conductors are used.
RS-232 was adopted as a standard for serial binary data signals connecting between a DTE (Data terminal equipment) and a DCE (Data Circuit-terminating Equipment). It is commonly used in computer serial ports. RS-232 is similar to the ITU-T standard 'V.24'. The International Telecommunications Union (ITU), which is closely associated with the United Nations (UN), issues various standards for telecommunication systems and equipment for use in all countries which support the UN and ITU.
Define and explain briefly the operating system and its types?
- System tools (programs) used to monitor computer performance, debug problems, or maintain parts of the system.
- A set of libraries or functions which programs may use to perform specific tasks especially relating to interfacing with computer system components.
The operating system makes these interfacing functions along with its other functions operate smoothly and these functions are mostly transparent to the user.
Operating System ConcernsAs mentioned previously, an operating system is a computer program. Operating systems are written by human programmers who make mistakes. Therefore there can be errors in the code even though there may be some testing before the product is released. Some companies have better software quality control and testing than others so you may notice varying levels of quality from operating system to operating system. Errors in operating systems cause three main types of problems:- System crashes and instabilities - These can happen due to a software bug typically in the operating system, although computer programs being run on the operating system can make the system more unstable or may even crash the system by themselves. This varies depending on the type of operating system. A system crash is the act of a system freezing and becoming unresponsive which would cause the user to need to reboot.
- Security flaws - Some software errors leave a door open for the system to be broken into by unauthorized intruders. As these flaws are discovered, unauthorized intruders may try to use these to gain illegal access to your system. Patching these flaws often will help keep your computer system secure. How this is done will be explained later.
- Sometimes errors in the operating system will cause the computer not to work correctly with some peripheral devices such as printers.
- Windows XP Professional Edition - A version used by many businesses on workstations. It has the ability to become a member of a corporate domain.
- Windows XP Home Edition - A lower cost version of Windows XP which is for home use only and should not be used at a business.
- Windows 2000 - A better version of the Windows NT operating system which works well both at home and as a workstation at a business. It includes technologies which allow hardware to be automatically detected and other enhancements over Windows NT.
- Windows ME - A upgraded version from windows 98 but it has been historically plagued with programming errors which may be frustrating for home users.
- Windows 98 - This was produced in two main versions. The first Windows 98 version was plagued with programming errors but the Windows 98 Second Edition which came out later was much better with many errors resolved.
- Windows NT - A version of Windows made specifically for businesses offering better control over workstation capabilities to help network administrators.
- Windows 95 - The first version of Windows after the older Windows 3.x versions offering a better interface and better library functions for programs.
There are other worthwhile types of operating systems not made by Microsoft. The greatest problem with these operating systems lies in the fact that not as many application programs are written for them. However if you can get the type of application programs you are looking for, one of the systems listed below may be a good choice.
- Unix - A system that has been around for many years and it is very stable. It is primary used to be a server rather than a workstation and should not be used by anyone who does not understand the system. It can be difficult to learn. Unix must normally run an a computer made by the same company that produces the software.
- Linux - Linux is similar to Unix in operation but it is free. It also should not be used by anyone who does not understand the system and can be difficult to learn.
- Apple MacIntosh - Most recent versions are based on Unix but it has a good graphical interface so it is both stable (does not crash often or have as many software problems as other systems may have) and easy to learn. One drawback to this system is that it can only be run on Apple produced hardware.
What operating system did the Acer TravelMate 6292 originally come with?
Acer provided both Windows XP Professional and Windows Vista (Business and Home Premium) for this model.
How do you tell which port is USB 11 and which is USB 2?
In Window XP:"Right click my computer, then "manage", select device manager and scroll down to USB controllers. Click the + then look for the word "Enhanced" in either of the host controller listed. If there's 1 with Enhanced, then you have USB2.0 capable hardware.
See the related link for more info about USB1.1 and USB2.0
200 amps eguals how many watts?
Watts = Volts x Amps. Como você pode ver pela fórmula que você precisa saber o que a tensão é.380vottos
Formula of quadratic equation if roots are given?
A quadratic equation has the form:
x^2 - (sum of the roots)x + product of the roots = 0 or,
x^2 - (r1 + r2)x + (r1)(r2) = 0
"Firewire" is the term used for a certain type of serial port on computers. Similar uses are USB. The Name is 1394 for "FireWire". The term firewire was meant to express that it was a faster connection than standard serial or parallel ports.
How do you make a gun in minecraft?
Well You Really Can't You Can Download A mod For It Hoped I Helped
How long does a surge protector last?
Surge Protection Devices are designed to sacrifice themselves in the event of a major transient event in order to prevent damage to the equipment that they were installed to protect. If a Surge Protection Device is subjected to a severe enough transient (surge) within minutes of its installation this may very well be the devices life expectancy. Quality Surge Protection Devices are designed to withstand a certain level of surge activity and still remain within the manufacturers original specifications. Most Surge Protection Devices have a LED Status Indication light that lets the consumer know whether or not the device is operational.
An outdated form of storage. It had a magnetic tape inside where the recording was recorded.
Should any device be allowed to interrupt CPU while another interrupts are being serviced?
It is possible to allow nested interrupts. This is often done when there is a heirarchy of interrupts, some with higher priority than others. In order for this to work, the second interrupt must not be allowed to influence the progress of the first interrupt. We call this being "thread safe". In a nested scheme, an interrupt mask is set so that higher priority interrupts can be permitted, while blocking interrupts of the same or lower priority, and then interrupts are reenabled during the interrupt service routine. At the conclusion of the first routine, interrupts are disabled again, the mask is restored, and the normal interrupt return sequence is executed.
In the 8085, this can be supported using the Read Interrupt Mask (RIM) and Set Interrupt Mask (SIM) instructions. While not strictly required, the logical priority is often INTR, RST5.5, RST6.6, RST7.5, and then TRAP, in order of increasing priority.
What are the characteristics of computers based on vacuum tubes?
Overall, computers with vacuum tubes were not reliable nor did very much. Vacuum tubes took up lots of space and got very hot. The lifespan of vacuum tubes were not much better than incandescent light bulbs, and if a computer had hundreds of these, the odds of one going out soon would be quite high. The vacuum tubes didn't switch all that fast either, and they had to be heated before they could be used, meaning it took about a minute or so before anyone could attempt to boot it.
CEO stand for == > Chief executive officer
There Jobs may vary for functionality opf position with the Office or work environment they are within.
Is there a difference between the power supplies for different types of xbox 360s?
No. They all contain the same power flux capacitor units.
Purpose of a guillotine foot model?
A guillotine was used during the french revolution to chop heads off the rich and royal.
A foot model could have the purpose of chopping feets off. (Makes me ponder if this has actually been made for this particular purpose)
If it is infact a smaller model only, then its purpose is probably more for display and "education" rather than actual use.
The guillotine is by most people considered to be a gruesome and inhumane tool.
Facts is that it provided a quick death, although the waiting time before execution must have been devastating thoughtwise.
Not that I condone such methods of killing or disabeling people as the outcome is most permanently even if you infact might be innocent of the crime charged with.
Some tiny models have been made to cut off the tips of cigars before you light them.
What are the applications and tools used by computer hardware servicing?
That greatly depends on your focus.
- End-user desktop repair typically focuses on replacement of whole parts such as a motherboard or hard drive. This type of repair typically only requires screwdrivers and context-based diagnosis, and the more advanced, flashy software or hardware diagnosis tools are either inaccurate or focus only on particular circumstances that your issue may or may not fall under. Other than a good SMART tool for hard drives and a RAM test program, software that attempts to diagnose problems typically can cause hardware failure on a damaged or poorly-designed computer, and should be used with caution.
- End-user mobile repair, laptop repair, and gaming console repair requires good jeweler's screwdrivers and security bits or pry tools, but otherwise nothing more than the desktops do. Diag tools, if available for the device you're working on, are again of little use unless the issue is clearly within their scope, and are almost certainly dangerous if they attempt to stress test any part of the system, as very few portable devices can tolerate full load for an extended period of time.
- Lastly, middle-vendor repair and manufacturing repair make use of soldering irons and multimeters to repair the circuit boards themselves. These forms of repair require a certain degree of knowledge of electronics, and technical documentation from the manufacturer is highly recommended. Many technicians at this level will often specialize in only one model or one type of product, and may also be required to reflash storage units attached to the boards if applicable. Reprogramming is typically done using a "sled" that makes contact in the correct places without requiring soldering. If you have access to the tools and documentation essentially required to repair at this level, you probably already know about it.
Is there a difference between 3.1GHz and 3.4Ghz?
not really only a 300mhz speed difference when u can actually run windows xp on 300mhz itself although slow however in terms of gaming every mhz or ghz helps
