PC System

PC System

1. Processing

   • is built into a single chip which executes instruction and coordinates the activities the computer system
     • the alu performs mathematical calculation and logical operations
       • the registers are high-speed units of memory used to store and control data
         • clock speed is measured in gigahertz

2. BUSES

   • the main circuit board inside your system is called the motherboard and connected by buses
     • the size of a bus,determines how much data can be transmitted
       • the larger the width, the more data can travel along the bus
         • CARDS
           • adding features like sound, memory and network capabilities

3. RAM

   • when user runs a program, the cpu looks for it on the hard disk and transfers a copy into the ram chips
     • capacity be expanded by adding extra chips

4. ROM

   • containing instructions and routines for the basic operations of the cpu
     • the bios uses rom to control communication with peripherals