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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 is the function of RJ45 connector?
RJ45 is the standard 8P8C telecommunications connector commonly found in computer networks such as Ethernet. RJ45 specifies both the plug and the socket. Connections are typically formed using twisted pair cabling, predominantly Category 5 (CAT5).
Ethernet cables may be configured as patch cables or as crossover cables. These two configurations are standardised in TIA/EIA-568 and ISO/IEC 11801. Patch cables are used to connect two different devices, such as when connecting a computer to a network switch or hub. Patch cables use the T568B scheme to terminate both endpoints. T568B is also used to terminate socket-to-socket endpoints and adaptors. Crossover cables are used to connect devices of the same type, such as when connecting one computer directly to another, and use the T568A scheme on one end and T568B on the other.
Can esata ports work with USB?
Short answer: No. They are different and not compatible.
Long answer: If the USB 2.0 device happens to be a hard drive that also has an esata port, then you could use the esata port instead.
What are the advantages of application server?
; and code integrity : By centralizing business logic on an individual or small number of server machines, updates and upgrades to the application for all users can be guaranteed. There is no risk of old versions of the application accessing or manipulating data in an older, incompatible manner. ; Centralized configuration : Changes to the application configuration, such as a move of database server, or system settings, can be done centrally. ; Security : A central point through which access to data and portions of the application itself can be managed is considered a security benefit, devolving responsibility for authentication away from the potentially insecure client layer without exposing the database layer. ; Performance : By limiting the network traffic to performance tier traffic, it is perceived that the client-server model improves the performance of large applications in heavy usage environments. ; Total Cost of Ownership (TCO) : In combination, the benefits above are considered to represent a cost saving to a company when developing enterprise applications. In practice, however, the technical challenges of writing software that conforms to that paradigm combined with the need for software distribution to distribute client code somewhat negate these benefits. ; and code integrity : By centralizing business logic on an individual or small number of server machines, updates and upgrades to the application for all users can be guaranteed. There is no risk of old versions of the application accessing or manipulating data in an older, incompatible manner. ; Centralized configuration : Changes to the application configuration, such as a move of database server, or system settings, can be done centrally. ; Security : A central point through which access to data and portions of the application itself can be managed is considered a security benefit, devolving responsibility for authentication away from the potentially insecure client layer without exposing the database layer. ; Performance : By limiting the network traffic to performance tier traffic, it is perceived that the client-server model improves the performance of large applications in heavy usage environments. ; Total Cost of Ownership (TCO) : In combination, the benefits above are considered to represent a cost saving to a company when developing enterprise applications. In practice, however, the technical challenges of writing software that conforms to that paradigm combined with the need for software distribution to distribute client code somewhat negate these benefits.
Where to put a memory card in PC?
a memory card must go into a special slot that is not in all computers. it will either be in an expansion slot on the front of the case or will use an adapter that plugs into a usb port. alternately, some printers have slots for memory cards.
the slots will look something like in this picture:
http://www.geekalerts.com/u/62-in-1-card-reader.jpg
Which computer-related terms is the considered a peripheral device?
Generally speaking, it's anythign that is not attached to the computer itself normally (like a hard drive, CPU etc.) and must interface with the computer another way such as through USB cables, speaker cables, bluetooth connections or any other kind of cable/wireless connection. Examples would be keyboards, speakers, bluetooth speakers, audio interfaces or external sound cards.
A MicroSD card slot is an expansion slot on a cell phone that allows you to increase its memory.
What is the difference between PGA and LGA?
LGA : Land Grid Array <== pins are in the socket, no pins are attached on the CPU, only pads.
PGA: Pin Grid Array <== pins are attached on to the socket, the socket has some sort of "holes" that hold the processor
How can you input data and files into the computer?
When audio signals (music, speech, etc) are detected by your computer's microphone, an analog (or continuous) electrical signal is generated. Computers work with digital data, so...there is a device in most computers called an analog-to-digital converter. This chip (or part of a chip) has the ability to sample the analog signal, calculate its amplitude, and return the value to a program (which the displays it, stores it on disk, mixes it, or does a multitude of other things).
This hardware capability is usually built-in to a computer or is a part of a sound card (like a SoundBlaster, etc), while the program is usually something like a Windows' Sound Recorder, audacity, etc.
Recovery disks are things that will save your tail if you get a virus or need to do a factory reset to the device. Some Computer companies do not provide them and maybe some do i recommend buying them for your computer module.
Do most vendors provide patches that fix bugs in their computer products?
True actual answer but also backdoor
Is a driver considered hardware or software?
Yes, the driver is a software that allows computer and a device (e.g. printer) to communicate together and work properly.
How do you speed up your computer for free?
1. Remove spyware and keep your computer away from rogue antispyware program
Spyware is designed by cyber criminals to generate illegal profits through exploiting malicious technology to collect your personal or commercial information, without obtaining your consent firstly. Once your computer has been infected by spyware, you may also need to handle with the further dangerous system problems below:
- Undesirable Blue Screen of Death errors
- Drastic decrease of system performance
- Slow computer performance
- Unwanted system pops-up
- Browser hijacked
- Software instability
- Ads bombard
- Unexpected modification on system settings and software settings
To increase pc speed, the most powerful and the safest way of removing spyware is to enable Microsoft Security Essentials on your computer. Microsoft Security Essentials is designed by Microsoft Corporation itself to provide ultimate, proactive and reactive solutions to help them solve security problems.
2. Clean up the files on desktop
Have you ever noticed that your computer is running more and more slowly? Is your desktop full of undesirable files and program shortcuts? The large amount of files on the desktop is a big reason for a slow computer. To dramatically increase pc speed, you may consider creating a folder to specifically store the unnecessary files of the desktop.
3. Schedule components run at system start- up
The programs run at system start up seem to consume huge amount of system resources, which results in computer sluggish. To fix the problem and increase pc speed, you should learn to schedule the components run at system start-up with the utility along with the system:
To schedule the components run at system start-up:
- Step One: Click Start. If you are using Windows XP, go to Run and type msconfig in the dialog box, if you are using Windows Vista, type msconfig in the search box in the Start menu.
- Step Two: Go to the Startup tab.
- Step Three: Uncheck any items you require not run at system startup. To perform this activity, you may consider checking the programs can run smoothly or not to avoid any undesirable damage.
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Method One: Remove spyware from your computer
Spyware acts as any technology that aids in silently collecting private or commercial information about a person or organization, with gaining their knowledge or permission. Once the spyware is highly active on your computer, you may need to pay much attention to your private information and identity files, including your ID numbers, email information, driver's license number and genetic information. In addition, the spyware combines with hidden components that secretly track and note down your login credentials to online bank and then transfer them to a third-party website for business purposes. This may consume huge amount of system resources and cause severe network connection failure. Once you have totally removed spyware, you may have no need to ask "How to make my computer faster".
If you are running Windows system, you may consider enable Microsoft Security Essentials on your computer instead of trying other spyware removal tools. Microsoft Security Essentials is compatible with almost all of the Windows operating system and offers you with comprehensive protection, easy- to- manage interface and quick removal solutions for keeping your computer parasites- free.
At last, to keep your information safe and totally speed up computer, you may need to use the tips to avoid spyware and other cyber threats:
Only enable legitimate software on your computer.
Use strong passwords to protect your privacy.
Still turn on the firewall.
Keep the system up- to- date.
Download files from trusted resources.
Method Two: Defrag the disk files.
The more files and programs you add to the system, the more slowly the computer runs. This is because once you install a program or transfer a file to the hard disk, the system needs to break the file structure for your task. As time goes by, the files without order need more and more time to be read by the system. This can drastically decrease the system performance, or even lead to system crashes. If you need to speed up computer and defrag the fragmented files, you may consider choose the built- in Disk Defragmenter.
Method Three: Repair registry problems
Once your computer has experienced registry problems, multiple system problems may begin to appear on your computer from time to time, including system startup failure, unexpected Blue Screen of Death errors, unwanted spyware attacks and sudden reduction of system performance. This is due to the fact that the Windows Registry serves as one of the critical part in the system used for storing crucial system settings. If you have to speed up computer immediately, you may consider enabling reliable registry cleaner software on your computer. The reliable registry cleaner software combines with advanced level system optimization utilities which function in cleaning up the entire unwanted registry files, repair obscure registry errors and tune up the registry performance totally.
What are the main parts of a computer and how do they work?
there are three main parts: hardware- the physical parts of a computer; software- the programs and other digital information and data ; electrical energy- provides power for the computer processing.
How do you tell what year your computer is?
On a Macintosh computer click the Apple logo top left of the screen and then click About This Mac. On the screen that comes up click More Info and then the Overview tab. There you will see the date of manufacture.
On a Windows computer click Start then Control Panel, System, here you will find the copy-write date. This will give you a vague idea of the date of manufacture. Also look for a label on the case with manufacture date. If none of this helps go to the manufactures web site support section.
What are the example of hardware devices and software?
A few examples of hardware are the monitor and the mouse. The hardware is the physical pieces of the computer. The software is the applications and programs on the computer.
IPO cycle stands for Input-Process-Output cycle
For example, if you want to make a copy of an important paper, you first scan the paper (inputting the data), make adjustments if you want to (processing the data), and the print it (outputting the data).
Here, the scanner is the input unit through which you feed the data to the computer.
The CPU is the processing unit which applies the changes you make to the data, that is, it processes the data.
The printer is the output unit through which you obtain the result of the data you earlier fed to the computer.
What are positive effects of the computer mouse?
Because of the computer mouse, and its cousins, the trackball and the clickpad, graphical user interfaces are practical. Otherwise, you'd need a keyboard or maybe a joystick to control things. But with a mouse, once you have enough coordination to use one, you can directly click on what you want.
Which are the chip sets on a computer motherboard?
The shipsets are the set of standardised chips on the motherboard. These usually match up nicely to the generation of processor. On 1155, the relevant chipsets are: B75 (business chipset for non-overclocking chips), H77 (same use as previous) is recommended for Asrock H77M or Asrock H77 Pro4-MVP, Z77 (for overclockable ivybridge/sandbridge chips).
What are the four fundamental components of a PC?
There are 8 not 4. Without one of these the computer will not function properly.
- Central Processor Unit (CPU)
- Video Card
- Ram
- Motherboard
- Hard Drive
- Sound Card
- Power Supply
- Monitor
What are basic and dynamic disks?
Basic disks use normal partition tables supported by MS-DOS and all Windows versions. A basic disk contains basic volumes, such as primary partitions, extended partitions, and logical drives. If you have any volume sets, stripe sets, mirror sets, or stripe sets with parity, you must back them up and delete or convert them to dynamic disks before you install Windows XP Professional. A basic or dynamic disk can contain any combination of FAT16, FAT32, or NTFS partitions or volumes. The disadvantage of a basic disk is that you are limited to creating only four primary partitions per disk or three primary partitions and one extended partition with logical drives. Windows NT based systems can support striping and software RAID sets for basic disks but Windows 2000/XP/2003 do not.
Dynamic disks are supported in Windows XP Professional, Windows 2000 and Windows Server 2003. Dynamic disks do not use partitions or logical drives. Dynamic disks were first introduced with Windows 2000. With dynamic disks you can create volumes that span multiple disks such as spanned and striped volumes, and you can also create fault tolerant volumes such as mirrored volumes and RAID 5 volumes. Dynamic disks offer greater flexibility for volume management because they use a database to track information about dynamic volumes on the disk and about other dynamic disks in the computer. Windows Server 2003 can repair a corrupted database on one dynamic disk by using the database on another dynamic disk. With dynamic storage, you can perform disk and volume management without restarting Windows.
Dynamic disks are not supported on laptop computers or on computers with Windows XP Home Edition installed. The number of volumes that you can create on a dynamic hard disk is only limited by the amount of free space available. Windows XP Pro, Home or 64 Bit Edition does not support mirrored or RAID5 volumes.
You can use both basic and dynamic disks on the same computer system.
Yes. Once the disc is burned, it behaves just like any other CD.
A battery rating of 4400 mAh means that the battery can nominally produce 550 mA for 8 hours.
Even though it would seem that the battery will produce 4400 mA for 1 hour, it will not actually last that long. By convention, current-time ratings on batteries are normalized to an 8 hour rating.
What is measured in gigahertz?
A gigahertz is a measure of frequency.
Giga means billion, hertz means frequency. Therefore, a gigahertz is a frequency measurement of One Billion (1,000,000,000) hertz.
