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Output Device-                                             Executable File-.exe    Database File-.dbf

       1. Monitor              2. Printer
                                                                FTP      File Transfer Protocol
       3. Plotter              4. Speaker
                                                                HTTP     Hyper text Transfer protocol
       5. Projector
                                                                SMTP     Simple Mail Transfer Protocol
     Input/Output Device-
                                                                PPP      Point to Point Protocol
       1. Fax machine          2. Telephone
                                                                WAP      Wireless Application Protocol
     Storage Device-
                                                                TCP      Transfer Control Protocol
       1.Hard Disk
                                                                IP       Internet Protocol
       2.Flash Driver (USB,Pen Drivers, SD memory Card,
                                                                IPP      Internet Printing Protocol
     SSDs)
                                                                POP      Post Office Protocol
       3.Optical Drivers(CD,DVD,Blue Ray)
                                                                SLIP     Serial Line Internet Protocol
       4. Ram (Volatile memory-SRAM,DRAM,SDRAM)
                                                                ARP      Address Resolution Protocol
       5. Magnetic tapes
                                                                DHCP     Dynamic Host Configuration Protocol
     Memory unit:-
                                                                SNMP     Simple Network Management Protocol
       1. Bit= “0”& “1”        2.Nibble=4Bit
                                                                IMAP     Internet Message Access Protocol
       3. Byte=8Bit            4.1KB (kilo byte)=1024 bytes
                                                                RIP      Routing Information Protocol
       5. 1MB(megabyte)=1024KB
                                                                ZIP      Zone Information Protocol
       6. 1 GB(Giga byte)=1024 MB
                                                                Office Version :-95,97,2000,2003,2007,2010,2012
       7. 1TB(Tera byte)=10 bytes
                         12
                                                                Window Version:- 95, 98, NT, XP, Vista, 2000, 2003,
       8. 1PB(Peta byte)=1024 TB
                                                                2007,2008
       9. 1EB(Exa byte)
       10.1ZB(Zeta byte)=1024FB                                 Topology:-
       11.1YB(Yota byte)=1024 ZB                                1. BUS Topology         2. RING topology
       Bit<Nibble<Byte<KB<MB<GB<TB<PB<EB<ZB<YB                  3. STAR topology        4. Tree topology
                                           9
                       6
       1 Million=1MB(10 byte) 1Billion=1GB(10 byte)             5. Mesh topology
       1 Trillion=1TB(10 byte)                                  Screen Zoom:-
                      12
       Memory Hierarchy                                         M.S Word:- min.-10%, max.-500%
       1.CPU Register                                           M.S. Excel - min-10%, max-400%
       2. CACHE Memory                  Size                    M.S Access- min-10%, max-400%
       3. ROM                                                   M.S Power Point- min-33%, max-400%
       5. FLASH                        Speed                    Full form of Computer-
       6. Magnetic Disk /Optical Disk                           C-Commonly              O-Operated
       7. Magnetic Tape                                         M-Machine               P-Particularly

       Types of Computer-                                       U-Used for              T-Technology
       1. Micro Computer:-PC                                    E-Education and         R-Research
       (A) Palmtop(B) Desktop(C) Laptop (D) Tablet              Computer Programming languages :-
       2. Mini Computer        3. Main Frame
                                                                1.       Low level language-    1. Machine language
       4. Super Computer                                                                        2. Assembly Language
       File Extension:-
                                                                2.       Middle level language  1. C Language
       M.S.Word                M.S.Excel
                                                                3.       High Level Language    1. C++     2.COBOL
       2003-.doc               2003-.xls
                                                                                        3. PASCAL      4. Fortran
       2007-.docx              2007-.xlsx
                                                                                        5. Algol       6. BASIC
       2010-.docx              2010-.xlsx
                                                                                        7. LOGO        8. LISP
       M.S Power Point-.ppt    M.S Access-.mdb
                                                                                        9. C#(C Sharp) 10. PROLOG
       M.S Paint-.bmp          Notepad-.txt
                                                                                        11. JAVA
       Batch File-.bat         Web Page-html

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