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Computers

This category includes questions and answers about computers and everything related to computers.

48,002 Questions

How many types of bios do you have?

You generally have 1 BIOS on your computer, typically an Award Pheonix BIOS or some sort of proprietary BIOS developed by either the computer manufacturer or the motherboard manufacturer. In some of the newer cases, being with the iMacs and a select few new motherboards, there isn't a BIOS at all, but rather a advanced replacement known as an EFI. The concept of the EFI is very controversial because it creates new, unneeded complexities to the startup process at the expense of simpler setup and loadup GUIs. Haters of the EFI system (such as myself), tend to state that your loadup system isn't supposed to be used for normal computing and doesn't need things like this. We also like to use the old adage, "If it isn't broke, don't fix it."

What are some input devices for the computer?

input devices are used to enter the data/commands/information so that we can get the result.

-sana

What are the 3 most common computer problems?

. Viruses is one of the main problems as well as downloading. When you down load multiple things on to your computer you have the problem of almost filling up the MB also known as Mega Bites. When you use all of your computers memory the computer gets slower because it has a harder time loading or starting up the programs that you have downloaded. DO NOT and I mean DO NOT go into the folder that lets you delete folders unless you know what you are doing. If you do not know what you are doing Do NOT try to attempt anything you could delete something that is very important. Every computer has Memory on it that can not be accessed although some of it can. The reason that memory can not be accessed is because it is important and if you delete it you could damage your computer. Another computer problem that is big is software not downloading right or letting in as i said before viruses. A Viruses is a bad thing. A viruses can give hackers or bugs a way to take over your computer or completely kill your computer. When your computer gets hacked nothing on it is personal anymore. The hacker can retrieve all of the files that you had stored on the computer. Whilst browsing the Internet you must be aware of what you are clicking on or downloading. If something look suspicious then it generally will be.

Ways to convert movie files from one format to another?

Converting videos to different format is simple as long as you have a professional video converter. You can try FonePaw Video Converter Ultimate. With this software, not only you can convert videos to any formats you need, but any audio format you need. Better still, you can use it to edit your video and download online videos.

How do you find where a LimeWire file is on my computer?

they are in my computer,local disk c, documents and settings,your name,shared.

What are the main advantages of networking Computers?

A computer network is great for sharing high speed information with other computers connected. It's perfect for a business in an office: everyone can share their files, which is good for managing large databases. A good example of a network is 'the internet' ;)

Where can one get information on computer spyware?

Someone can find software to remove spyware and malware from a number of companies such as Norton or McAfee. Both Norton and McAfee offer extensive spyware and malware removal software suites.

What is used to connect components in a computer system?

Personal computer hardware are component devices which are typically installed into or peripheral to a computer case to create a personal computer upon which system software is installed including a firmware interface such as a BIOS and an operating system which supports application software that performs the operator's desired functions. Operating systems usually communicate with devices through hardware buses by using software device drivers.

Motherboard

The motherboard is the main component inside the case. It is a large rectangular board with integrated circuitry that connects the other parts of the computer including the CPU, the RAM, the disk drives (CD, DVD, hard disk, or any others) as well as any peripherals connected via the ports or the expansion slots.

Components directly attached to the motherboard include:

  • The central processing unit (CPU) performs most of the calculations which enable a computer to function, and is sometimes referred to as the "brain" of the computer. It is usually cooled by a heat sink and fan. Newer CPUs include an on-die Graphics Processing Unit (GPU).
  • The chip set mediates communication between the CPU and the other components of the system, including main memory.
  • RAM (random access memory) stores resident part of the current running OS (OS core and so on) and all running processes (application parts, using CPU or input/output (I/O) channels or waiting for CPU or I/O channels).
  • The BIOS includes boot firmware and power management. The Basic Input Output System tasks are handled by operating system drivers. Newer motherboards use Unified Extensible Firmware Interface instead of BIOS.
  • Internal buses connect the CPU to various internal components and to expansion cards for graphics and sound.
    • Current
      • The north bridge memory controller, for RAM and PCI Express
        • PCI Express, for expansion cards such as graphics and physics processors, and high-end network interfaces
      • PCI, for other expansion cards
      • SATA, for disk drives
      • ATA
    • Obsolete
      • AGP (superseded by PCI Express)
      • VLB VESA Local Bus (superseded by AGP)
      • ISA (expansion card slot format obsolete in PCs, but still used in industrial computers)
  • External bus controllers support ports for external peripherals. These ports may be controlled directly by the south bridge I/O controller or based on expansion cards attached to the motherboard through the PCI bus.
    • USB
    • FireWire
    • eSATA
    • SCSI

Power supply

A power supply unit (PSU) converts alternating current (AC) electric power to low voltage DC power for the internal components of the computer. Some power supplies have a switch to change between 230 V and 115 V. Other models have automatic sensors that switch input voltage automatically, or are able to accept any voltage between those limits. Power supply units used in computers are nearly always switch mode power supplies (SMPS). The SMPS provides regulated direct current power at the several voltages required by the motherboard and accessories such as disk drives and cooling fans.

Removable media devices

  • CD (compact disc) - the most common type of removable media, suitable for music and data.
    • CD-ROM Drive - a device used for reading data from a CD.
    • CD Writer - a device used for both reading and writing data to and from a CD.
  • DVD (digital versatile disc) - a popular type of removable media that is the same dimensions as a CD but stores up to 12 times as much information. It is the most common way of transferring digital video, and is popular for data storage.
    • DVD-ROM Drive - a device used for reading data from a DVD.
    • DVD Writer - a device used for both reading and writing data to and from a DVD.
    • DVD-RAM Drive - a device used for rapid writing and reading of data from a special type of DVD.
  • Blu-ray Disc - a high-density optical disc format for data and high-definition video. Can store 70 times as much information as a CD.
    • BD-ROM Drive - a device used for reading data from a Blu-ray disc.
    • BD Writer - a device used for both reading and writing data to and from a Blu-ray disc.
  • HD DVD - a discontinued competitor to the Blu-ray format.
  • Floppy disk - an outdated storage device consisting of a thin disk of a flexible magnetic storage medium. Floppies are used today mainly for loading device drivers not included with an operating system release (for example, RAID drivers).
  • Iomega Zip drive - an outdated medium-capacity removable disk storage system, first introduced by Iomega in 1994.
  • USB flash drive - a flash memory data storage device integrated with a USB interface, typically small, lightweight, removable, and rewritable. Capacities vary, from hundreds of megabytes (in the same ballpark as CDs) to tens of gigabytes (surpassing, at great expense, Blu-ray discs).
  • Tape drive - a device that reads and writes data on a magnetic tape, used for long term storage and backups.

Secondary storage

Hardware that keeps data inside the computer for later use and remains persistent even when the computer has no power.

  • Hard disk - for medium-term storage of data.
  • Solid-state drive - a device similar to hard disk, but containing no moving parts and stores data in a digital format.
  • RAID array controller - a device to manage several internal or external hard disks and optionally some peripherals in order to achieve performance or reliability improvement in what is called a RAID array.

Sound card

Enables the computer to output sound to audio devices, as well as accept input from a microphone. Most modern computers have sound cards built-in to the motherboard, though it is common for a user to install a separate sound card as an upgrade. Most sound cards, either built-in or added, have surround sound capabilities.

Input and output peripherals

Input and output devices are typically housed externally to the main computer chassis. The following are either standard or very common to many computer systems.

Input

  • Text input devices
    • Keyboard - a device to input text and characters by depressing buttons (referred to as keys or buttons).
  • Pointing devices
    • Mouse - a pointing device that detects two dimensional motion relative to its supporting surface.
      • Optical Mouse - uses light to determine mouse motion or we can say laser.
    • Trackball - a pointing device consisting of an exposed protruding ball housed in a socket that detects rotation about two axes.
    • Touchscreen - senses the user pressing directly on the monitor.
  • Gaming devices
    • Joystick - a control device that consists of a hand held stick that pivots around one end, to detect angles in two or three dimensions and reports its angle or direction to the device it is controlling.it is mainly used for playing the games.
    • Game pad - a hand held game controller that relies on the digits (especially thumbs) to provide input.
    • Game controller - a specific type of controller specialized for certain gaming purposes.
  • Image, Video input devices
    • Image scanner - a device that provides input by analyzing images, printed text, handwriting, or an object.
    • Web cam - a video camera used to provide visual input that can be easily transferred over the internet.
  • Audio input devices
    • Microphone - an acoustic sensor that provides input by converting sound into electrical signals.

Output

  • Printer - a device that produces a permanent human-readable text of graphic document.
  • Display
    • OLED - Organic Light-Emitting Diode

Small device resembling a pen used to input data?

An "Input Device" is anything that receives information and 'Inputs' it into the computer. The most basic are...

* Keyboard

* Mouse

* Controller

* Scanner

* Microphone

* Web Cam

What are the strength and weaknesses of computers?

The strength of computers is their ability to process tedious mathematical chores in a fraction of the time that a human being could do them. The weaknesses of computers is that the ability to process things faster has forced human beings to work faster, harder, and longer, and to become dependent on the computers for information, and even to the point of taking the place of physical social interaction.

What is another name for a CPU processor?

"CPU" can represent "central processing unit" or "central processor unit." It is the primary computer hardware responsible for input, output, and operating on data. Note that some computers lack a CPU, as computation is spread over multiple units.

What is the best antivirus for windows 7 Home Premium 64 bit?

Avast seems to be one of a few antivirus applications out there that support the Windows xp pro x64 operating system, and it's free. Although you still need to find a compatible firewall. AVG is good and I think it also has a firewall. As an XP x64 user I have found Comodo Internet suite seems to run the best as far as resources and ease of use. It also has a built in firewall and is pretty much "plug and play" in that you basically install it and let it do its job. Everything from scanning to updates to firewall rules has already been done for you, but these are trivially easy to change from the Comodo control panel if you so desire.

What do you do when you are locked out of your lock out of you computer?

i don't no! i was locked out of mine. that's y im asked this ?.

How can risk of unauthorized computer system access be reduced?

Firewall hardware can protect an outside hacker's access to a personal computer. Firewall hardware is firewall network used by many people to protect unauthorized access. Firewall hardware set up between a computer and DSL modem which protects a single and multiple computers. An individual should regularly scan their own computer to prevent spyware. It may affect a performance of one person's computer which hackers access your personal data. An individual should used password and encrypting files to protect themselves. This ensures that unauthorized people access and view your data. Full disc encrypting which prevents thief from turn on other's person computer without passphrase. It is so common that everyone need a software to protect own data. As a result, an individual should maintain an antivirus software and firewall to protect personal and financial data. How antiviruses work in order to protect our personal and financial data? It helps to prevent any unauthorized person steal private and confidential information. Steps to safeguard personal data : * The policy will designate more employees coordinate safeguarding. All the staffs must be coordinate to safeguard their private information's and financial data. It will evaluate the effectiveness of the safeguarding to make sure that it in line with its clients protection. * "Confidentiality Policy" recognized the importance of protecting unauthorized access, miuse, loss information resources. * All printed material containing confidential, personal information related to financial transactions, including name, birth date, address, telephone number, social security number, personal photograph, amounts paid or account number, are to be safeguarded. * There is only authorized employees may view a document stored in University information system. * The system which directly linked to a specific account that just authorized person may review, scan, print and store paper document and correspondence electronic files directly on computer system for immediate backup and retrieval. By Hamid

What provides high speed information processing by enabling new instructions?

Hyperthreading provides high speed information processing by enabling a new set of instructions to start before the previous set finished.

How can computer evidence be used in court?

For one to use the computer law in court, all of the data or information must be collected legally (with a warrant or permission) before it can be used as evidence in a court of law. Any personal digital information from internet usage, emails and even credit cards can be included in this.

How much pounds does a computer weight?

The first computer was built and used by the military and took up the space of a large room! this was because of the large amount of vacume tubes needed and the fact that microchips didn't exist back then. Only big ones. really big.

What causes a computer to freeze up and how can you fix it?

Software incompatibility is one cause. That includes having two virus programs on your computer.

Other computer freezes may have other causes such as overheating of the CPU because the CPU fan is failing, power supply problems, failing hard drives, and operating system problems.

In Windows, there is the Event Viewer. That is where you can find system errors. You can try copying the text in the errors and search them on the web for possible solutions. A few of the events listed may even tell you how to fix them.

It also depends on what you are using when you experience lockups. If it is in the browser, you may need to reinstall the browser, or you may need to reinstall JAVA or Flash. In rare cases, you may need to find a JAVA or Flash remover before reinstalling those components.

What website can I visit that reviews and shows the best prices for laptop computers?

Buying a laptop is a complicated decision which will probably affect you daily for the next few years. In addition to price and specs, you want to consider things such as ease-of-use, speed, reliability, stylish-design and tech-support.