CSCI chapter 2

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

In base 16, the digit D is used to represent the decimal value___

13

In base 16, the digit F is used to represent the decimal value___

15

The base value of the hexadecimal number system is___

16

integer

natural numbers and negative numbers

The rightmost digit of a number is the ___ position in any base

ones

base number system

the base of a number begins with zero and goes through one less than the base ex. base 2 numbers are 0,1 base 8 numbers are 0,1,2,3,4,5,6,7

What can the base of a number system determine?

the number of digits and the value of the digits

the highest digit in base 2 is___

1

In bases higher than 10, the letter A is used to represent the decimal value ____ using only one symbol

10

the binary number 1001 in the octal (base 8) system is____

11

The decimal number 12 in binary is ___

1100

The base value of the binary number system is ____

2

Imaginery number

2+3i

names for base 2, 8, 10, 16 numbers

2-binary 8-octal 10-decimal 16-hexadecimal

convert base 2 number to base 8 number to base 16 number

3*2^0+2*2^1+1*2^2 3*8^0+2*8^1+1*8^3 3*16^0+2*16^1+1*16^3

The decimal number 65 in hexadecimal (base 16) is___

41

The highest digit in base 8 is____

7

The base value of the octal number system is___

8

word length

The number of digits in a binary word

byte

a group of 8 bits (binary digits)

The ___ of a number system determines how many digits are used in the system and the value of the digit positions

base

A single binary digit is called a(n) ____

bit

A group of 8 bits is called a(n) ______

byte

natural number

counting numbers (positive only and no decimals)

____is the lowest number system in which 901 could be a valid number

decimal

base change formula

dn*R^n-1+dn-1*R^n-2+....d2*R^1+d1*R^0

Binary numbers are important in computing because numbers in every base can be converted into them

false

Binary numbers can be converted to octal but not to hexadecimal

false

Grace Murray Hopper is credited to being the first programmer

false

The base number system determines the number of digit positions that can be used for any number in the system

false

The base of a hexadecimal number system is 15

false

The digits used in base 8 are 1 through 8

false

The number of bits in a word is the same on all machines

false

A(n)______ is a natural number, a negative of a natural number, or zero.

integer

rational number

integer or quotient of 2 numbers can be represented as a fraction

____is the lowest number system in which 372 could be a valid number

octal

The value of a number in any base can be expressed as a(n)________ in which each term is made up of a digits multiplied by the base raised to a power.

polynomial (function)

irrational number

square roots that are whole roots, pie, e

A byte is made up of 8 binary digits

true

A natural number is the number 0 and any number obtained by adding 1 to a natural number

true

An abacus uses positional notation to represent values

true

Grace Murray Hopper participated in the design of the COBOL programming language

true

Representing a number in base 5 sometimes requires more digits than representing that same number in base 10

true

Starting from the right, every group of four binary digits can be read as one hexadecimal digit (true or false)

true

The base number system determines the number of digits used in the system

true

The base of the binary number system is 2 (true or false)

true

The category of numbers called integers includes negative numbers (true or false)

true

The number 10 exits in every number system (true or false)

true

There is one set of underlying principles governing all numbers systems (true or false)

true

When converting binary number to octal number, you will mark the binary digits in groups of 3 (true or false)

true

Bytes can be grouped into a(n)____, the size of which a machine dependent

word


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