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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

What are the advantages of Webcams?

it is so you can tack pictures or video from y our computer

What are the computer limitation?

They are unnatural, and therefore unintuitive - the natural way for a human to interact with another human is by verbal and nonverbal communication.

Computer's can't think for themselves. They aren't intelligent. If you feed a computer incorrect information, it will result in an incorrect output.

They cannot adequately deal with 'fuzzy' terms, unlike humans who describe most things in a fuzzy way: "Oh, it was *hot* today," or, "John's car cost him a *fortune*," and "It's *almost* seven o' clock - the takeaway's open."

A computer can't tell you something completely new, it can only derrive something based on something known that it was previously programmed to manipulate. They are not creative or imaginative, nor are they prone to arbitrary moments of genius.

They are unquestioning devices. They do not feel and they do not understand ethics.

Computers can only adequately process information that may be quantised. They cannot adequately deal with abstractions.

Finally, the greatest limitation of a computer is that they are engineered, built and used by humans. They expose our flaws and undersights.

Computers have many capabilities. They are not intelligent machines and work off instructions, therefore it can perform many instructions and complete them almost instantly. Computers can connect to the Internet, which means your computer can share information and resources in real time, thus expanding the capabilties of a computer. Computers are very efficient, fast and also have very accurate results to the things we ask them to do.

How many devices can a IEEE 1394 port support?

firewire port can support up to 63 devices on one firewire port with a hub

What is a ripple effect?

(Donna will not work)

Donna, in Mr. Jake's class, is quite docile. she never disrupts class and does little socialising with other students. But despite Mr. Jake's best efforts, Donna rarely completes an assignment. She doesn't seem to care. She is simply there putting forth virtually no effort. How would Kounin deal with Donna? Kounin would suggest to teachers that they use the following sequence of interventions until they find one that is effective with Donna.

1. Use the ripple effect. "I see many people have already completed half their work." look at Donna, later comment, "I'm afraid a few people will have to stay late to complete their work".

What 3 components must have the same or compatible form factor and why?

The three components that must have the same form factor in a computer are the case, power supply and motherboard. The case should be able to support the form factor of the motherboard and the motherboard should be able to support the CPU socket type.

What are jumpers made from?

The "jumpers" used in computers and other electronics are typically made from copper, and typically covered with non-conductive plastic.

What are the differences between an Intel Core 2 Duo and an Intel Pentium Dual-Core?

Intel Pentium Dual-Cores are identical in architecture to Intel Core 2 Duos. The differences are:

  • Intel Core 2 Duos have a larger amount of L2 cache. In certain applications, a larger L2 cache can provide a major boost in performance.
  • Intel Pentium Dual-Cores lack some features that the Intel Core 2 Duo includes, such as support for Intel VT-x (used for virtualization) and TXT (Trusted Execution technology).
  • As of September, 2009, the fastest FSB supported by the Pentium Dual-Core line is 1066 MT/s. The fastest Intel Core 2 Duos support an FSB of 1333 MT/s.

What is a SCSI ID number?

SCSI - Small Computer System InterfaceSCSI is an industry standard system interface, which allows multiple peripheral devices to be installed on the system. The number of devices that can be installed depends on the type of SCSI Host adapter that you have installed in your system. Most SCSI systems have an older "Narrow" 8-bit SCSI host adapter, which have 8-bit data paths and allow for up to 7 devices to be installed on the same channel. Newer "Wide" Host adapters have 16-bit wide data paths and provide support for up to 15 devices.

A SCSI ID is a unique identifier assigned to each SCSI device on the bus. It determines the SCSI device's priority. There are 16 IDs, ranging from 0 to 15. The order of the priorities is a bit unusual. From highest priority to lowest they are: 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12 ,11, 10, 9, 8. ID 7 is almost always reserved for the SCSI Host Adapter. The other IDs are free to be assigned as desired, although your computer may have assigned them automatically.

Never assign the same ID to more than one device.

What is a computers ability to respond to a fault or catastrophe such as a hardware failure or power outage so that data is not lost?

Fault Tolerance

found in CompTIA A+ "Guide to Managing & Maintaining You PC" 6th Edition Chapter 10, Page 480.

What is the Logical drive and physical drive?

* Physical file (PF) contains the data and have only one record format. Logical file (LF) is a view of the physical file which does not contain any data may be based on one physical file or more then one physical file. Logical file can have more then one record format. Logical can be non join or join logical file. Performance becomes better if you use the logical file in the program.

Is an scanner a imput or output?

A scanner is an input device because you cannot send data from your computer to the scanner, only from the scanner to the computer.

Advantage of twisted?

If your referring to cat5, cat5e, cat6 wire, what you have is two wires that carry voltage, when voltage travels on wire it creates a magnetic field around the wire, you have two wires that carries voltages and both wires are creating a magnetic field... then you have eddy currents... take two magnetic and bring them close together and you disturb there magnetic fields or crossing of eddy currents as you disturb there magnetic field you feel the resistance or how it becomes harder to bring them closer together. The resistance of the magnetic fields is the same on two conductors they resist flow. So if you twist the two pairs together somehow it helps to cancel or reduce the repulsion of the fields and allow the voltage to flow better or more efficiently. the tighter or more twist per length the better.

Is a CD Re writer an input or an output device?

That's an output device, because your getting information off the computer and onto the CD.

Main difference between AT and ATX?

AT power supplies are connected to a motherboard with two power connectors, that must be aligned correctly. ATX power supplies use a single 20 or 24-pin connector that cannot be inserted incorrectly. AT power supplies are turned on and off with a physical switch. ATX power supplies are turned on and off by receiving a signal from the motherboard.

Which BIOS password must be entered before the system will boot?

if you don't know what the password is you will have to reset the bios by tripping a jumper or removing the watch battery on the motherboard.

List the hardware equipments needed to connect to the internet?

first you need an isp (internet service provider) and then from there you can choose either wireless which in turn you will need a router and a modem, or you can go with a wired connection in which all you will simply need is a phone line a modem and a ethernet cable HAVE A SWELL DAY

A Wireless adapter in the back of your PC will do it, all you need to do is choose a wifi hotspot and hack it (i am not recommending hacking, it is not a safe alternative to not paying for internet service)

How many partitions does SCSI support?

SCSI does not care about partitions. This is only the protocol used to interface with the harddisk.

There is probably a practical limit to the possible number of partitions on your SCSI drive. This is limited by its size mostly.

Normal limitations on partitions is something like 3 Primary partitions and one extended of which can contain more logical partitions. However not being 100% sure about limitations I find it logical to be about 127 or 255.

In any case more than what is practical for most uses.

It is greatly dependent upon which operatingsystem you use.

A partition is only controlled via software or even software in hardware.

Designing software for it, and you can easily have thousands of "partitions".

it is like having a book. If you write the book yourselves, you decide how many chapters this book will consist of. You decide the size of each chapter.

Is a computer screen considered hardware?

No, A monitor is a peripheral, it is not necessary for the computer to run, it increases the functionality or the host computer and is dependant on the host to fucntion, but the host computer can actually run without a monitor

How do you tell if you have lo jack installed on your laptop?

If you ordered it, installed it, or requested it prior to purchase, you have it. If you have stolen someones laptop and you are trying to findout if authorities are going to lock you up... you'll never know until they knock on your door... BIG BROTHER IS WATCHING ... lol

Why does a computer fail?

1. Power Supply Is faulty. 2.Ram Is not Fitted In Slot Properly. 3.H.D power or IDE connecter Is not fix properly. 4.A so called "power Trojan" or Virus that is in your power options folder 6. Errors in Instructing Computer 7. Improper Control 8. Lack of Standards 9. Lack of Adequate Manufacturer Support

What devices did the computer replace?

Perhaps most notably, computers have replaced the typewriter, both the mechanical ones and the electric style. There are also other things which they can replace but have not completely, including the adding machine, the calculator and even the notepad. In a sense, people have been partially replaced by them, also, but I would not consider a person to be a device.

What is a UTP coupler?

A UTP coupler is a small block to which you can connect two UTP cables to form a longer one. Handy if you have 2 short cables but need a long one.

Where do you plug in USB speaker?

A usb flash drive plugs in to the USB ports located on the sides of laptops (most commonly) or in the font or back of deskops (most commonly).
Hello im glad you asked because i will be able to help you. Alright you plug it into the usb port. Incase you dont know what that looks like here is a picture that shows you http://www.shivaranjan.com/shivaupload/windowslivewriter/10WaystoNetworkTwoComputers_11F65/USBPort.jpg Hope this helped :)

What are input output ports?

I/O Ports are memory addresses used by the processor for direct communication with a device that has sent an interrupt signal to the processor. The exchange of commands or data between the processor and the device takes place through the I/O port address of the device, which is a hexadecimal number. No two devices can share the same I/O port. Many devices use multiple I/O port addresses, which are expressed as a range of hexadecimal numbers.

What does contro Ctrl - U mean?

If you're in a web browser, it opens a webpage with coding. If you're in Word or a documenting program, it means to Underline.