1) The tangible part of a computer system called ? a) Input data b) Output data c) Hardware d) Software 2) Binary coded decimal ( BCD ) numbers express each digit is a a) Bit b) Byte c) Nibble d) All of these 3) Hexadecimal numbers are mixture of a) Octal and decimal numbers b) Binary and octal numbers c) Letters and decimal digitss d) Binary and decimal digits 4) ASCII code is an a) Alpha numeric code b) Cyclic code c) Numeric code d) Alphabet code 5) Icons are a) Typed commands b) Verbal commands c) Imaginary commands d) Picture commands 6) The binary numbers system is fundamental to all digital computers a) True b) False 7) Repeated divisions by 10 is used to convert decimal numbers to binary numbers  a) True b) False 8) The largest single BCD digit has a binary value of 15 . a) True b) False 9) A byte has 8 bits . a) True b) False 10) How many common number system are in number system ? a) Two b) Three c) Six d) Four

COMPUTER QUIZ ( CH. Number System )

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