Chapter 1-4

Question 1

How many postive number can N bits represent

Answer 1

2^n - 1

Question 2

How many numbers can we represent with sign magnitude

Answer 2

2^N -1

Question 3

Decimal > any base

Answer 3

Divide by base wanted
Find remainder (base x decimal )
Continue until 0
Remainders from bottom to top is answer

Question 4

Binary to decimal

Answer 4

Write top to bottom
X2^0 up from decimal or x 2 ^-1 under decimal

Question 5

Binary to hex

Answer 5

Groups of 4, w leading zero

Question 6

Binary > octal

Answer 6

Groups of 3 leading zeros