QUESTION $2$

$1\mathrm{.}1$ Name four number systems you are familiar with.

$1\mathrm{.}2$ What is the radix for the following number systems

$1\mathrm{.}2\mathrm{.}1$ Hexadecimal

$1\mathrm{.}2\mathrm{.}2$ Octal

$1\mathrm{.}3$ Name two weighted codes you are familiar with.

$1\mathrm{.}4$ Name one code that is both cyclic and non$-$weighted.

$1\mathrm{.}5$ What does MSB stand for

QUESTION $3$

$[12]$

Subtract the following by means of the two's complement method and convert the final answer to the decimal system $($show all calculation$)$:

$AD,7_{16}-65,58$

$BF,C_{16}-DB,9_{16}$

Convert $56,410$ to the following BCD codes:

$8421$

Excess $3$

Convert $01010112$ binary to Gray code.

$[20]$

TOTAL

$40$