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Advance information about computer


information about computer

In this article I give you short information about computer related what is system software what is application software units of digital data storage Units of Digital Data Storage Data these  question are important for  interview in any test in  computer field and engineering fields
Units of Data Storage
1 Byte  23 or 8
1kilo Byte (KB) 210or 1024 bytes
1 Milion (Mega) Byte  (MB) 220  or 1024 kilo Bytes
1 Billion (Giga) Bytes (GB) 230  or 1024 Mega Bytes
1 Trillion (Tera) Bytes (TB) 240   or 1024 Giga Bytes
1 quadrillion (Peta) Bytes (PB) 250or 1024 Tera Bytes
1 Exabyte’s (EB) 260 or 1024 Peta Bytes Bytes
1 Billion Tera (Zetta ) Bytes (ZB) 270 or 1024 Exa Bytes
1 Septillion (Yotta) bytes (YB) 280 or 1024 Zeta Bytes

types of Data

 six types of data used in digital data storage like
  images sound Alphabetic Numeric Alphanomeric and video
Types of Software
1 System software
Oprating system      Drivers & Utility Software          Embedded Software
2 Application Software
Word processors {notepad,wordpad, Ms Word}
Entertainment Software{ VLC,windows media player}
Spreadsheet Software {Lotus123,Excel}
Database Software {Ms Access, SqL Server}
Presentational Software {Powerpoint,Flash}
Graphics {Ms Paint,Corel,Photoshop}
Important Short cuts about computer
CBT: stand for computer Based Training
PDA: stand for personal digital assistant
IBM: stand for international business machine
DDR SDRAM: stand for double data rate synchromous dynamic random-access memory
VDT: stand for video/visual Display terminal.
UNIVAC: stand for universal automatic computer
AGP: stand for accelerated graphic port
TFT: stand for thin film transistor
FPD: is obbrevation of Flat Panel Displays
BIOS:stand for Basic input output system.
CLI: stand for command line interface
ISA: stand for integrated drive electronics
OCR: stand for optical character recognition.
OMR: stand for optical mark recognition.
LSI: stand for large scale integration.
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