Define the following:
a. Assembler
b. Interpreter
c. Compiler
d. Object Code
e. Source Code
f. Program

a. Assembler — An assembler is a program used to translate mnemonic operation codes to their machine language equivalents.

b. Interpreter — An interpreter converts a program written in a High Level Language into the Machine language program line by line and simultaneously executes the converted line. If an error is found, it displays the error and does not proceed till the error is rectified.

c. Compiler — A compiler is a computer program that transforms human readable source code of an entire computer program into the machine language code. It converts the entire program at one go. If an error is found, it gives the error list along with the line numbers.

d. Object Code — Object code is a set of statements which is usually generated by a compiler after converting a high level language program into machine language.

e. Source Code — Source code is a set of statements in a High-Level programming language.

f. Program — A set of instructions which performs a specified task is called a program.