Computer Science Key concepts
Computer Science Key concepts (NEW)
BIOS (bask input/output system) :-A collection of software codes built into a PC that handle some of the fundamental tasks of sending data from one part of the computer to another.
Boot or boot-up:- The process that takes place when a PC is turned on and performs the routines necessary to get all the components functioning properly and the operating system loaded. The term comes from the concept of lifting yourself by your bootstraps.
CMOS :-An acronym For complementary metaloxide semiconductor-a term that describes how a CMOS microchip is manufactured. Powered by a small battery, the CMOS chip retains crucial information about what hardware a PC comprises even when power is turned off.
System files :- Small disk Files that contain software code that are the first files a computer reads from disk when it is booted. On DOS and Windows systems, the files are named 10.SYS and MSDOS.SYS and are hidden so that ordinarily you cannot see them in a listing of files on a disk. The system files contain the information needed, following the initial hardware boot, to load the rest of an operating system. In DOS, one other system file is COMMAND.COM, which contains the operating system's basic functions, such as displaying a list of files (a directory). A boot disk must contain all three files for a PC to start up. System files can also include CONFIG.SYS, which makes some initial settings of hardware, and AUTOEXEC.BAT, a collection of commands that are executed when all other boot functions are finished. In Windows 95,98, and Me, the Registry-consisting of the two hidden files USER.DAT and SYSTEM.DAT is also necessary for Windows to run and can be considered a system File.
BIOS (bask input/output system) :-A collection of software codes built into a PC that handle some of the fundamental tasks of sending data from one part of the computer to another.
Boot or boot-up:- The process that takes place when a PC is turned on and performs the routines necessary to get all the components functioning properly and the operating system loaded. The term comes from the concept of lifting yourself by your bootstraps.
CMOS :-An acronym For complementary metaloxide semiconductor-a term that describes how a CMOS microchip is manufactured. Powered by a small battery, the CMOS chip retains crucial information about what hardware a PC comprises even when power is turned off.
System files :- Small disk Files that contain software code that are the first files a computer reads from disk when it is booted. On DOS and Windows systems, the files are named 10.SYS and MSDOS.SYS and are hidden so that ordinarily you cannot see them in a listing of files on a disk. The system files contain the information needed, following the initial hardware boot, to load the rest of an operating system. In DOS, one other system file is COMMAND.COM, which contains the operating system's basic functions, such as displaying a list of files (a directory). A boot disk must contain all three files for a PC to start up. System files can also include CONFIG.SYS, which makes some initial settings of hardware, and AUTOEXEC.BAT, a collection of commands that are executed when all other boot functions are finished. In Windows 95,98, and Me, the Registry-consisting of the two hidden files USER.DAT and SYSTEM.DAT is also necessary for Windows to run and can be considered a system File.
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