Extra practice questions

Processor speeds and times between clock pulses

Processor clock speed	Seconds between pulses	Nano-seconds between pulses
1.5 GHz
7.14 MHz
2.2 GHz

Integer conversions between binary, octal, hex, decimal

Original base	Number to convert	Base to convert to
Original base	Number to convert	Binary	Octal	Hex	Decimal
Binary	110110	110110
Octal	123		123
Hex	2D			2D
Decimal	123				123

Conversions with fractions (max 3 places of precision)

Original base	Number to convert	Base to convert to
Original base	Number to convert	Binary	Octal	Hex	Decimal
Binary	1011.11	1011.11
Octal	12.5		12.5
Hex	D.8			D.8
Decimal	7.6				7.6

Non-decimal addition (unlimited bits)

Number system

Example one

Example two

Example three

Binary

100010

+010010

10101010

+01111111

10110101

+01100101

Non-decimal subtraction (unlimited bits)

Number system

Example one

Example two

Binary

1011

-0011

1011011

-1000101

Converting between binary, one’s complement and two’s complement

Number system
Unsigned Binary	One’s complement	Two’s complement	Decimal
-0111
	01011
		11000
			-7
-01111