FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A computer instruction is an order given to a computer processor by a computer program. At the lowest level, each instruction is a sequence of 0s and 1s that describes a physical operation the computer is to perform. Computer instructions typically have three fields.

Detailed explanation-2: -In computer programming, computer code refers to the set of instructions, or a system of rules, written in a particular programming language (i.e., the source code). It is also the term used for the source code after it has been processed by a compiler and made ready to run on the computer (i.e., the object code).

Detailed explanation-3: -An instruction code is a group of bits that instruct the computer to perform a specific operation. • The operation code of an instruction is a group of bits that define operations such as addition, subtraction, shift, complement, etc. •

Detailed explanation-4: -Code (short for source code) describes text written using a programming language by a computer programmer. Examples of programming languages include C, C#, C++, Java, Perl, and PHP. Code is also be used less formally to refer to text written for markup or styling languages, like HTML and CSS (Cascading Style Sheets).