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WAEC 2017 COMPUTER STUDIES ANSWER / SUBSCRIPTION



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  • WAEC 2017 COMPUTER STUDIES ANSWER / SUBSCRIPTION

    COMPUTER-OBJ-ANS
    1ACDCBDDCCC
    11BADDCBBCDB
    21BACAACCACA
    31ABADDCDCCB
    41DBDDCBCCDB

    5a)
    10110112
    =1*2^6+0*2^5+1*2^4+1*2^3+0*2^2+1*2^1+1*2^0
    =1*64+0*32+1*16+1*8+0*4+1*2+1*1
    =64+0+16+8+0+2+1
    =91
    tabulate
    16|91
    5 r B
    O r 5
    10110112=5B16
    were B is 11

    5b)
    HACKER
    i) A hack group getting main owner on an XAT chat without authorization.
    SCAMMER
    ii)Tricking an internet user into giving you his/her login name and password
    5c)
    i)HTML:Hypertext Markup Language
    ii)HTTP: Hypertext Transfer Protocol
    iii)ISP: Internet Service Language
    iv)SMTP: Simple Mail Transfer Protocol.

    ===============================

    4a)
    complet the table
    1)RAM is volatile i.e. its contents are
    lost when the ddevice is powered
    off. ROM is non-volatile i.e. its contents
    are retained even when the device is
    powered off.
    2)RAM allows the computer to read
    data quickly to run applications. It
    allows reading and writing.
    ROM stores the program required to
    initially boot the computer. It only
    allows reading.

    4b)
    i)Searching and Organizing
    ii)Ease of Access Center
    iii)Default Programs
    iv)Remote Desktop Connection
    4c)
    i)antivirus programs
    ii)registry cleaners



    ===========================

    1a)
    An input device is any hardware device that sends data to a computer, allowing you to interact with and control the computer.
    1b)
    i)key board
    ii)The mouse
    1c)
    i) Logic gates are digital components that
    typically work two levels of voltage and
    determine how a component conducts
    electricity.

    ii) Logic gates use Boolean equations and switch tables.

    1di)
    A,B
    OR —-)—- A+B
    1dii)
    and gate
    A—- AB
    B—- AND

    Posted by OGA EASYNET on 13.04 19:38 Reply




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