Perfect Computer Notes

MMC stands for multimedia card. SD stands for secure digital card. System Bus  is used to connect main components of a computer such as cpu and main memory. A Port is an interface or a point of attachments. POS stands for Point Of Sale terminal. ATM stands for Automated Teller Machine. PIN stands for Personal identification number. Kbps stands for kilobits per second. Mbps stands for megabits per second. A port that transmits one bit at a time is called Serial Port. A type of port that transmits many bits at a time is called Parallel Port. LPT stands for Line Printer. Examples of system software are Operating System, Utility Programs and Device Drivers. Examples of operating systems are DOS, Windows, Unix and Linux. Examples of Utility programs are File Manager, Image Viewer, Disk Scanner and File Compressor. Software used to detect and remove viruses is called Antivirus . Examples of antivirus programs are Mcaffee, Avast,

(70)10 = (1000110). [ divide 70 by 2 repeatedly until quotient is zero, write down remainders from bottom to top.] NTFS is abbreviation for new technology file system     . USB stands for Universal serial Bus. AGP stands for Accelerated graphical port. Roman number system is an example of non-positional number system. PPP stands for point-to-point protocol. SCSI is pronounced as Small computer system interface. MS Excel is an example of Applications software. Windows is an example of          system           software. WAN as a network stands for    wide area network. DNS stands for Domain name server. CPS stands for   Character per second. BIOS stands for   Basic input-output system. LCD stands for Liquid crystal display     . POST stands for   ­­­­­­­­­­­­­­­­­­­­­­­­­_Power  ON Self Test How many rows are in MS Excel _65536. Modem stands for Modulator and demodulator. CPM stands for Character per minute ENIAC stands for Electro

FTP stand for     file transfer protocol. Lady ADA is the mother of computer.    VINT CERF     is the father of Internet. Nibble consists of   4   bits.   Google     and   Yahoo   are the two search engines. TCP/IP stands for Transmission control protocol/Internet protocol. One sector on Hard Disk holds   512    bytes.   Dos, window and UNIX are three operating systems. Demodulation converts Analog signal into Digital signal. ARPANET stands for advanced research project agency network. URL stands for uniform resource locator . Charles Babbage is the father of computer. Lady ADA is the first computer programmer. Nibble contains 04 numbers of bits. Name Two Mail service mail Yahoo.com. VOIP stands for Voice over internet protocol. One sector holds 512 numbers of bytes. Name two different Operating systems DOS and Windows. The process of demodulation converts digital signal into analog signal. URL st