The problem asks to convert the given binary instruction $0010100111111100$ into hexadecimal format, and to provide one use of hexadecimal notation in computer science.

1. Problem Description

The problem asks to convert the given binary instruction $0010100111111100$ into hexadecimal format, and to provide one use of hexadecimal notation in computer science.

2. Solution Steps

a) Convert the binary instruction into hexadecimal.

First, we need to group the binary digits into groups of 4, starting from the right:

$0010\ 1001\ 1111\ 1100$

Now, we convert each group of 4 binary digits into its hexadecimal equivalent.

$0010$ is equal to $2$ in decimal, so it is $2$ in hexadecimal.

$1001$ is equal to $9$ in decimal, so it is $9$ in hexadecimal.

$1111$ is equal to $15$ in decimal, so it is $F$ in hexadecimal.

$1100$ is equal to $12$ in decimal, so it is $C$ in hexadecimal.

Therefore, the hexadecimal equivalent of the binary instruction is $29FC$.

b) Give one use of hexadecimal notation in computer science.

Hexadecimal notation is commonly used to represent memory addresses in computer science.

3. Final Answer

a) $29FC$

b) Representing memory addresses.