UNIT ? 2,1.The four major comp superstarnts of the m another(prenominal)board ar:A.BIOS;The BIOS (basic input / widening system) is essenti eachy the electronic data processor softw are the calculating machine uses, it is intimately basic trading operations (accessing retrospection, plows, processors, etc.). This software is built into the computers motherboard, so do non worry nervy losing it if your disenfranchised depend on crashes. Most BIOS setups allow you to put to progress toher rocky stab parameters, set the time, type of floppy disk captures, computer remembering timing and so on. It is an area thats best(p) left totally unless you are an experienced computer do drugs user. (Note that these are NOT Windows settings, these are the core settings for your computer. You normally do-nothing cook at them by pressure level the DEL paint a few seconds after you winding your computer on (this understructure vary from automobile to machine though). B.CMOS keeping:CMOS (complementary alloy oxide semiconductor) is a low powered stock chip. Even when the computer is off-key off, CMOS is running. The CMOS chip has its own battery, that go forth nett 7 to 10 years. Once the battery dies all flesh information bequeath be lost and exit necessity to be re-entered. C. repulse Slots: gate-crash (Random Access Memory) and is pronounced expectiness the male sheep. take is made up of small memory chips that form a memory module. These modules are installed in the draw slots on the motherboard of your computer. each time you uncivil a program, it gets sloshed from the heavy(p) drive into the RAM. The to a greater extent RAM your computer has, the more than info quarter be miserly from the hard drive into the RAM, which so-and-so effectively speed up your computer. In fact, adding RAM female genitals be more near to your computers performance than upgrading the mainframe computer. To mate how much RAM a Windo ws computer has, open the manoeuver Panel. ! This tin keister be done by right-clicking My Computer and selecting Properties?. D. double behavior:This style wine is found on the stern of senior(a) PCs and is use for consorting immaterial eddys such as sorespapermans or s endureners. It uses a 25-pin affiliateor and is rather medium-large compared to most brand-new interfaces. It is some generation likewise referred to as a printer behavior, because the printer is the device most greenly attached to the opposite number appearance. The latest analogue port is called the Enhanced Parallel Port (EPP). This bar supports bi-directional conference and can transfer info up to ten times blistering than the original 25-pin connector port. Since the repeat port is a rather dated technology, do non be impress to see USB or Firewire interfaces completely replace latitude ports in the future. 1.Describe the CPU and provide a portray;CPU (Central impact Unit), this is the pretty much the brain of your comput er. It processes everything from basic operating instructions to analyzable functions. Any time something wishings to be computed, it gets sent to the CPU. whatsoever day it is compute this, compute that (you would think the CPU would need a break after awhile). But no, it just keeps on processing. The CPU can withal be referred to simply as the processor.2.Describe involution slots and provide a picture;Expansion slots are openings in a circuit board where you can platterharge in new capabilities to the computer. Nearly all personal computers, draw off portables, apprehend expansion slots for adding more memory, graphics capabilities and support for redundant devices. The boards inserted into the expansion slots are called expansion boards, expansion cards, cards, add-ins and add-ons. Expansion slots for PCs get on in ii basic sizes: half and full-size. little slots are in any case called 8-bit slots, because they can transfer 8 bits at a time. life-size slots are s ometimes called 16-bit slots. 3.Basic computer part ! including a picture and definition of each. A.Monitor- orThe monitor displays the computers user interface and open programs, allowing the user to interact with the computer. B. Keyboard-The design of computer keyboards whitethorn keep up come from typewriters, todays keyboards defend many other keys as well. Modifier keys, such as Control, Alt/Option, can be used in conjunction with other keys as shortcuts to perform certain operations. For example, pressing Control-S (Windows) typically saves a entry or project you are working on. Most of todays computer keyboards also guard a row of function keys (F1 finished F12) along the top of the keyboard, cursor keys arranged in an anatropous T, and a numeric computer keyboard on the right-hand side. round keyboards have even more yettons, allowing you to change the system volume, unloose a CD, or open programs such as your netmail or wind vane browser. C. Mouse-The visit comes from the small shape of the common mackerel, which you can move quickly back and forth on the mouse pad, and the cord, which represents the mouses tail. All mice have at least one providedton, though most mice have two or three. Most mice also have a bankroll-wheel, which lets you scroll up and down documents and Web pages by just drum roll the wheel with your baron finger. D. System Unit-This is the technical name that refers to the thump that houses your computer. The system whole refers to the computer itself, but does not overwhelm; the monitor, the keyboard, the mouse, or any other input/output devices. E. profound Drive-The hard drive is what pedigrees all your data. It houses the hard disk, where all your files and f quondam(a)s are physically located. The data is retentiond on a stack of disks that are mount inside a solid encasement. These disks spin passing turbulent (typically at either 5400 or 7200 RPM), so that data can be accessed immediately from anywhere on the drive. The data is stored on the hard drive magnetically, so it stays on the drive eve! n after the power supply is turned off. F. floppy disk Drive-A floppy disk drive or FDD, the initials of which should not be confused with fixed disk drive, is another end record for a non removable type of hard disk drive. Invented by IBM, floppy disks in 8-inch (200 mm), 5¼-inch (133.35 mm), and 3½-inch (90 mm) formats enjoyed many years as a popular form of data transshipment eye and exchange, from the mid-1970s to the late 1990s. While floppy disk drives still have some limited uses (especially with industrial computer equipment), FDD?s have now been largely superseded by USB flash drives, external hard drives, CDs, videodisks and memory cards. G. CD/videodisc drive-compact criminal record read-only memory (Compact disc Read-Only Memory), a CD-read-only memory is a CD that can be read by a computer with an ocular drive.
The ROM part of the term means the data on the disc is read-only, or cannot be altered or erased. Because of this feature and their large capacity, CD-ROMs are a great media format for retail software. The starting line CD-ROMs could hold well-nigh 600 MB of data, but now they can hold up to 700 MB. CD-ROMs share the same technology as audio CDs, but they are formatted differently, allowing them to store many types of data. DVD (digital several(a) Disc) or (Digital Video Disc), but with the many uses of DVDs, the term Digital Versatile Disc is more correct. A DVD is a high-capacity optical disc that looks like a CD, but can store much more information. While a CD can store 650 to 700 MB of data, a wholeness-layer, single-sided DVD can store 4.7 GB of data. T his enables massive computer applications and full-le! ngth movies to be stored on a single DVD. There is a two-layer standard that multiply the single-sided capacity to 8.5 GB. These disks can also be double-sided, ramping up the maximal storage on a single disc to 17 GB. Thats 26 times more data than a CD can hold. To be able to read DVDs in your computer, you go away need a DVD-ROM drive. To play DVD movies on your computer, you will need to have a graphics card with a DVD-decoder, which most computers now have. H. Serial Ports-The accompanying port is a type of connection on PCs that is used for mice, gaming controllers, modems and older printers. It is sometimes called a COM port or an RS-232 port, which is its technical name. If thats not enough to confuse you, there are two types of incidental ports; DB9 and DB25. DB9 is a 9-pin connection, and DB25 is a 25-pin connection. The serial port is typically the sluggish port you will sire on a PC, if you find one at all. Most new computers have replaced serial ports with much faster and more matched USB ports. I.DIN connector-J. Ethernet ports-Ethernet is the most common type of connection computers use in a local anesthetic area network (LAN). An Ethernet port looks much like a regular phone jack, but it is slightly wider. This port can be used to connect your computer to another computer, a local network, or an external DSL or cable system modem. K. USB port-USB (Universal Serial Bus) is the most common type of computer port used in todays computers. It can be used to connect keyboards, mice, game controllers, printers, scanners, digital cameras and removable media drives (just to name a few). With the military service of a few USB hubs, you can connect up to 127 peripherals to a single USB port and use them all at at one time (though that would require quite a bit of dexterity). USB is also faster than older ports, such as serial and parallel ports. References:Kozierok, Charles M. (2001, April 17). ?CMOS Memory? PC conk. Retrieved kinsfolk 26, 2009, from Web site: www.pcguide.comRetrieved ima! ges from ?Fotosearch? on September 27, 2009, from www.fotosearch.com/photos-imagesRetrieved images from ?Expedient? on September 27, 2009, from www.expedient.comSchmidt, C. A. (2008). ?The Complete A+ Guide to PC Repair?, Fourth Edition. Boston: Addison-Wesley. If you urgency to get a full essay, order it on our website:
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