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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

Button is it input or output?

Input. You're sending instructions or commands to the computer.

Output is when the computer gives information to you, such as a monitor, printer, or speakers.

How do you put pictures to the computer digital cameras photos to the computer?

The easiest way to put pictures on your camera would be to get a card reader and plug that into your computer. Then drag the pictures on your computer into the same folder as the one where your camera stores pictures when you take them.

Why does the computer shut down unexpected?

out of experience, my acer laptop shut down all the time and i had no idea.

i got it repaired, and the damage was the CPU overheating and shutting down because of the heat getting to much for the computer.

hope this helps :)

Where can you download a driver for a RealTek RTL8201E Ethernet controller?

A generic driver for the RealTek RTL8139D can be found at the link below. Note that Windows 2000 and later should already include this driver by default.

You can also visit Getdriversnow website and download free driver for Realtek ethernet driver. Just follow the link below.

MODEM stands for?

It comes from the term MOdulator DEModulator.

A modem converts a digital signal from a computer into an analog signal, so that can be transferred down a telephone line and then at the other end it is converted back into a digital signal so that it can be sent into the receiving computer. These two processes are known as modulation and demodulation.

A modem is a Modulator and Demodulator. It's like a bridge between computer and ordinary telephone lines. Telephone lines only accept analog signals but computers only accept digital (binary) signals so modems help link them.

The data is changed to represent 2 audio frequencies. These noises are superimposed onto a phone line audio. This is known as 'modulation'. The incoming signal of course has to be changed back again to binary data, this is known as 'demodulation'.

The word modem is shorted for "Modulator-demodulator" referring to it's original use.
Modem = MoDem = Modulator + Demodulator

Modem is the device that modulates digital signals from Internal Network into analog signals onto analog lines towards ISP & demodulates analog signals into digital signals for use in Internal Network.

What is the function of the Power On Self Test POST?

The computer uses this test to make sure that all critical components are accounted for and apparently working okay before proceeding with booting up the operating system.

Is 1gb ddr2 good?

Well I have had several other computers and laptops before. My new Emachines computer that I purchased this week had 1GB DDR2 in it and it has beaten all my other computers and laptops in speed. So I'm guessing it's all thanks to the 1GB DDR2. Well I have had several other computers and laptops before. My new Emachines computer that I purchased this week had 1GB DDR2 in it and it has beaten all my other computers and laptops in speed. So I'm guessing it's all thanks to the 1GB DDR2.

How many pins are on a typicaly serial port?

The traditional parallel port is a 25 "d-sub" connector.

Serial ports come in two flavors, either 25 pin "d-sub" or 9 pin.

USB (another serial communication standard) is a different animal.

PS/2 is also a serial port and it has six pins.

Is a speaker input or output for a computer?

The speakers are an output device because they are delivering data from the computer to the user. Speakers, monitors, and printers are examples of output devices. Keyboards, mice, and tablets are input devices. Devices that are i/o devices (input and output) include floppy drives, hard drives, cards, and USB drives.

Is a print laser an input or output?

well, to answer this question one must first read the entire Shakespeare collection and then jump up and down on the spot until you spinal cord fall out of your bleeding, mutilated feet. then one must hire out a wood-chipper and feed yourself into it. if your wood-chipper body still alive then one will achieve enlightenment.

in others words, i do not know...

:)

What do you mean by pointing input device with example?

There are two types of pointing input device one is called mouse another one is light pen.

1:- Mouse

mouse is a primary text input device but lack the ability to easily transmit textual information. It is also called pointing device that is used to move a pointer on the computer screen in order to point to a place on display screen and to select on or more actions to be taken from the position.

2:- Light pen

light pen is a pointing input device that contains a photo detector or light pen is source and that allows interaction with a computer through a specially designed monitor.generally it is used for engineering designing.

What plugs into a Firewire port?

Any devise that is made to work with firewire. Such as a hard drive.

Why do hardware and software always have to work together?

This is actually a very complex question, and would probably be difficult tofully answer with even with an entire textbook. But I think the most crutial element serving asa "bridge" between software and hardware would probably be the "register." Commands or services requested by the software are finally encoded intobinary valuesof "0"s and "1"s and are written into a "register". For example, some register may hold a value of "01101100". The above encoding has a total of 8 "bits" (one byte), where each value of either "0" or "1" is called a "bit" (and 8 bits are collectively called a "byte"). At the hardware level, the computer hardware does not see these "0"s and "1"s as numbers, but as voltage levels, for example, a high voltage of +3 volts may represent a "1" and a low voltage of near 0 volts may represent a "0" (or vice versa, depending on how the circuitry is designed). These high and low voltages are fed into a series of "logic gates" which in turn, through the correct logic design, will go about with producing the results specified by the particular software command. For example, if the software is requesting a caculation, the hardware logic gates may add the first two bits of the encoding together, produce a result "1" ("0" + "1" = "1"), and then write this result into another register somewhere for the software to subsequently go fetch and read. Or, if the encoding is a request for some kind of service, the logic gates may in turn access or write into some other registers which would in turn trigger other logic gates to inititiate this service. But again, this is a very complex process with indeed many variations depending on what kind of technologies the designers of the system choose to implement anduse.

How do you downsize mb to KB?

If you're asking about converting units between MegaBytes and KiloBytes, there are 1024 KiloBytes in a MegaByte. So, if something is 42MB, you multiply by 1024 and get 43,008Kb.

If you're asking how to make your files smaller, you need compression software, such as gzip, winzip or stuffit. Depending on the files you are trying to compress, you may be able to reduce their size significantly. Some files are very difficult to compress, however, and it's not even worth the time to shave a few bytes off the total file size.

In general, documents like MS word and excel are very easy to compress, and you can bundle thousands of them together and compress them to save lots of space. Media files such as movies and pictures can be much less useful to compress.

How can you get a video from your phone to play on your laptop?

There would be a connecting cable between the phone and the laptop and that has to be the connection between the two.Bluetooth could be another method though to get the pictures and video transferred vice versa.

What is the Main applications of RS 232 ports?

Serial port, this one, (http://en.wikipedia.org/wiki/Image:RS-232.jpeg) it is usually coloured green on modern computers.

Why is a hard disk so important?

Well the hard drive stores all your personal data and system data, without a hard drive to boot your operating system from all your left with is a glorified side table.

Read this below for more info:

http://www.helpwithpcs.com/courses/hard-drive-basics.htm

http://www.helpwithpcs.com/jargon/hard_disk.htm

What are the 4 functional parts or components of the computer?

The functional units that constitute a Computing System together are:

1. CENTRAL PROCESSING UNIT

a. Control Unit

b. Arithmetic & Logic Unit

c. Registers

2. DISPLAYUNIT

3. INPUT UNIT

Which Device acting both input and output?

The most common example of a device that acts as both input and output simultaneously is a touch screen monitor for a computer.

The display of data makes it an output device while the ability to send signals to the computer via touch makes it an input device as well.

What is the resolution of a monitor?

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Is it true that input and output devices perform the same function?

No. Input devices are those devices which help us to give a command or data to a computer, for example Keyboard. While output devices gives us data, for example Monitor. In the case of some devices, they can act as an Input as well as output device at the same time, like Touchscreen Monitor.

How much ram memory can you put on a dell OptiPlex gx520?

You can upgrade your Dell OptiPlex GX620 SFF upto a maximum of 4.0 GB, with maximum of 1GB per slot in 4 (2 banks of 2) memory slots. The Dell OptiPlex GX620 SFF takes the PC2-4200 DDR2 SDRAM DIMMs. Supports Dual Channel DDR. Memory Type.

What are memory sockets or slots and how are these divided into bank?

Memory Sockets or Slots are the place where memory RAM modules are inserted in the motherboard. The Dell OptiPlex GX620 SFF has 4 (2 banks of 2) memory expansion slots. A memory bank is a group of memory expansion sockets, a bank must be completely filled with memory modules of the same size and type in order for the system to recognize and address the memory. i.e. :

2 sockets (2 banks of 1) This indicates that there are 2 memory slots. These are divided into 2 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use.

3 sockets (3 banks of 1) This indicates that there are 3 memory slots. These are divided into 3 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use.

4 sockets (2 banks of 2) This indicates that there are 4 memory slots. These are divided into 2 banks, and each bank consists of two memory slots. So you must add memory two pieces at a time (they must be the same size and type of memory) in order for the system to benefit from the upgrade.

8 sockets (4 banks of 2) This indicates that there are 8 memory slots. These are divided into 4 banks, and each bank consists of two memory slots. So you must add memory two pieces at a time (they must be the same size and type of memory) in order for the system to benefit from the upgrade.

12 sockets (3 banks of 4) This indicates that there are 12 memory slots. These are divided into 3 banks, and each bank consists of four memory slots. So you must add memory four pieces at a time (and they must be the same size and type of memory) in order for the system to benefit from the upgrade.

How do I install memory on my Dell OptiPlex GX620 SFF?

Memory installation help guides can be found at the following link.

Memory Installation Guide

184-pin DDR DIMM Installation Guide

168-pin SDRAM DIMM Installation Guide