



Computer Systems
eXercise #1
Number Systems
 Perform the following conversions back into DECIMAL (Base 10)
 101011101001 BINARY
 100101010011 BINARY
 2EC HEX
 3B0D1 HEX
 Complete the following conversions from DECIMAL to the base nominated
 414 DECIMAL to BINARY
 7308 DECIMAL to HEX
 255 DECIMAL to BINARY
 3245 DECIMAL to HEX
 A number system used infrequently on 8bit computers was called
OCTAL (or Base 8)
 What were the symbols used for representing OCTAL quantities?
 What is the largest value allowable in each column of an OCTAL
system?
 What is 5349 DECIMAL expressed in OCTAL?
 Is there a 'simple' conversion for BINARY to OCTAL, and
OCTAL to HEXADECIMAL
 How many BITS would be necessary to store the following:
 the DAY NUMBER in any given month
 the AGE in years of a person
 the state of a light switch
 the house and tutor group number taken together (eg. W4, T3)






