pc problem at boot up

In computing, booting is the process of starting a computer as initiated via hardware such as a button or by a software command. After it is switched on, a computer's central processing unit (CPU) has no software in its main memory, so some process must load software into memory before it can be executed. This may be done by hardware or firmware in the CPU, or by a separate processor in the computer system.
Restarting a computer also is called rebooting, which can be "hard", e.g. after electrical power to the CPU is switched from off to on, or "soft", where the power is not cut. On some systems, a soft boot may optionally clear RAM to zero. Both hard and soft booting can be initiated by hardware such as a button press or by a software command. Booting is complete when the operative runtime system, typically the operating system and some applications, is attained.
The process of returning a computer from a state of sleep (suspension) does not involve booting; however, restoring it from a state of hibernation does. Minimally, some embedded systems do not require a noticeable boot sequence to begin functioning and when turned on may simply run operational programs that are stored in ROM. All computing systems are state machines, and a reboot may be the only method to return to a designated zero-state from an unintended, locked state.
In addition to loading an operating system or stand-alone utility, the boot process can also load a storage dump program for diagnosing problems in an operating system.
Boot is short for bootstrap or bootstrap load and derives from the phrase to pull oneself up by one's bootstraps. The usage calls attention to the requirement that, if most software is loaded onto a computer by other software already running on the computer, some mechanism must exist to load the initial software onto the computer. Early computers used a variety of ad-hoc methods to get a small program into memory to solve this problem. The invention of read-only memory (ROM) of various types solved this paradox by allowing computers to be shipped with a start up program that could not be erased. Growth in the capacity of ROM has allowed ever more elaborate start up procedures to be implemented.

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  1. W

    Help Pa help DELL STUDIO XPS

    Guys pa help . Di cya mag boot na try ko na lahat swap, ram, remove and install sa ram at gpu at sa cmos din wala parin.
  2. B

    Help Help! Windows starting up . Shutdown

    ano po kaya problema ng pc ko pag nag starting windows nag shushutdown siya tapos boot ulit. Pa help nmn sa mga expert jan
  3. J

    Closed Hp laptop lcd problem

    Sana may makatulong sakin pano ifix to,half screen bulag..inupdate ko lng pag reboot ko ganyan na lumabas,tapos nag stock sa boot,pag press ko f10 or f2 walang boot,kung enter ang i press ko "WARNING SET UP" Nakalagay,huhu hiniram ko lng ito sa kapatid ko di pa nya alam,sana may makatulong
  4. L

    Closed mga PC wizard patulong po

    mga magagaling na computer tech dyan patulong po sa problema ng laptop ko nag eerror na kasi diko na din mapasok ang recovery lagi na sya nag hahang. naka ilang format nako dati ng drive C at D nagamit mga ilang araw then nag hahang after nag error na sya. ayaw nya na din magboot via usb para...
  5. M

    Closed Need help

    Pa tulong po sa mga Master jan. Yung PC ko ayaw mag boot. Ano ba dapat kong gawin?
  6. N

    Closed Pa help tungkol sa pc

    pa tulong po mga boss.. Yung desktop ko po kasi ayaw mag turn on... Ok naman nakasaksak yung cable. Tas yung monitor gumagana.. Pag bubukas ko dun sa power supply. Umiilaw yung monitor pero pag i on ko na cpu. Ayaw gumana.. Sana me makatulong sa prob ko.. Salamat
  7. S

    Closed my pc cannot boot up

    . tanong ko lang po okay naman ang power supply ng pc ko pero hindi sya maka boot up kapag on ko sya di nya kaya ma pa power on yung monitor ko .. need help . sana may pumansin .. tapos ang hina pa ng cpu fan nya . anu po problem nya ??
  8. K

    Help Patulong po!! LagING NG RESTART PC KO. Pagdating sa loading ng windows xp.

    mga master patulong naman po. Tuwing mgloading ang windows xp sa startup bigla n lng mgrestart ulit hnd pa tapoz ang loading xp. Anu poNG gagawin ko. . mga master patULOng. . .