4.6 Computer Systems

4.6 Computer Systems

1. Hardware & Software

   • 4.5.1 Number Systems
   • hardware vs. software
   • Classification of software
     • System Software
     • Application Software
   • System software
     • Operating Systems
     • Utility Programs
     • libraries
     • translators
       • Compiler
       • Interpreter
       • Assembler
   • Role of Operating system

2. Programming language classification

   • 4.5.4 Binary Number system
   • relationship between imperative high-level & low-level language
   • High-level language
     • Imperative high level language
     • Advantages & Disadvantages
   • Low-level language
     • Assembly language
       • Advantages
       • Disadvantages
     • Machine code
       • Advantages
       • Disadvantages

3. Type of Program translator

   • 4.5.5 Information coding systems
   • Compilation vs. Interpretation
   • Role of Assembler, Compiler & Interpreter
   • Need for byte code
   • Source code vs. Object code

4. Logic gates

   • 4.5.6 Bit patterns, images and sound representation
   • Drawing & Interpreting logic circuits
   • Truth table for logic circuit
   • Boolean expression for logic circuit
   • Half-adder circuit
   • NOT, AND, OR, XOR, NAND, NOR
   • Full-adder circuit
   • Edge-triggered D type flip-flop

5. Boolean Algebra

   • 4.5.7 Encryption
   • Boolean Identities
   • De Morgan's Law
   • manipulate & simplify Boolean expressions