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Computer Science Key concepts

Question asked by mahesh_dahale in #Coffee Room on Oct 13, 2009
mahesh_dahale
mahesh_dahale · Oct 13, 2009
Member of CrazyEngineers
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. Posted in: #Coffee Room
Manish Goyal
Manish Goyal · Oct 14, 2009
Member of CrazyEngineers
Re: Conputer Science Key concepts

nice info ..mahesh
Sahithi Pallavi
Sahithi Pallavi · Oct 14, 2009
Member of CrazyEngineers
Re: Conputer Science Key concepts

Good information..



P.S : There is a spelling mistake in the thread name. Modify it.
mahesh_dahale
mahesh_dahale · Oct 14, 2009
Member of CrazyEngineers
Re: Conputer Science Key concepts

sahithi pallavi
Good information..



P.S : There is a spelling mistake in the thread name. Modify it.
Thanks for pointing out. Modified.
mahesh_dahale
mahesh_dahale · Oct 14, 2009
Member of CrazyEngineers
Circuit board:- Originally, wires ran from and to any component in any electrical device, not just computers. A circuit board replaces the need for separate wiring with the metallic traces printed on the board-sometimes also on the bottom of the board and in a hidden middle layer. The traces lead to connections for processors, resistors, capacitors, and other electrical components. The importance of the circuit board is that its entire creation can be automated, and the board packs more components into an ever-smaller space.

Dock :- A microchip that regulates the timing and speed of all the computer's functions. The chip includes a crystal that vibrates at a certain frequency when electricity is applied to it. The shortest length of time in which a computer can perform some operation is one clock, or one vibration of the clock chip. The speed of clocks-and therefore, computers is expressed in megahertz (MHz). One megahertz is 1 million cycles, or vibrations, a second. Thus, a PC can be described as having a 200 or 300 MHz processor, which means that the processor has been designed to work with a clock chip running at that speed.
ONKSSSSS
ONKSSSSS · Oct 15, 2009
Member of CrazyEngineers
good MAD keep posting
mahesh_dahale
mahesh_dahale · Oct 15, 2009
Member of CrazyEngineers
Re: Computer Science Key concepts (new)

CPU :- An acronym for central processing unit, it is used to mean the microprocessor-also, processor-which is a microchip that processes the information and the code (instructions) used by a computer. The "brains" of a computer.

Expansion slot :- Most PCs have unused slots into which the owner can plug circuit boards and hardware to add to the computer's capabilities. Most slots today are personal computer interface (PCI). One other slot, the accelerated graphics port (AGP), accepts a video card designed to move images out of memory quickly-you might see shorter slots on older computers. These are industry standard architecture (ISA), the only type of slots on the first PC.
gaurav.bhorkar
gaurav.bhorkar · Oct 16, 2009
Member of CrazyEngineers
very good information. Keep it up.
safwan
safwan · Oct 16, 2009
Member of CrazyEngineers
Keep posting nice info like this brother .
ramya_nag
ramya_nag · Oct 17, 2009
Member of CrazyEngineers
good information..
mahesh_dahale
mahesh_dahale · Oct 18, 2009
Member of CrazyEngineers
Motherboard:- A sheet of plastic onto which metallic circuits have been printed and to which slots For other components wait to receive daughterboards, smaller circuit boards that add to the motherboard capabilities.

Operating system :-Software that exists to control the operations of hardware. Essentially, the operating system directs any operation, such as writing data to memory or to disk, and regulates the use of hardware among several application programs that are running at the same time. This frees program developers from having to write their own code for these most basic operations.

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