computer performance

computer performance

1. cache

   • what
     • is it related to ram
       • yes
     • Fetches, decodes and executes instructions.
     • static ram
       • SRAM
     • If there is a larger amount of cache memory storage, a greater number of frequently-used instructions can be stored. This means that more instructions can be accessed quickly, which will improve the performance of the computer RAM stores instructions and data while a program is running The greater the amount of RAM, the more instructions and data can be stored while a program is running. This means that less instructions will be stored in the much slower virtual memory and will therefore improve the performance of the computer
     • Cache memory is a small amount of memory which is either inside the CPU or closer to the CPU than RAM Cores are independent processors in the CPU
   • how
     • transfers data much faster than RAM

2. clock speed

   • what
     • is it related to RAM?
       • no
     • does cycles per second
       • 1KHz – 1000 (thousand) cycles per second
       • 1Hz – 1 cycle per second
       • 1GHz – 1,000,000,000 (billion) cycles per second
       • 1MHz – 1,000,000 (million) cycles per second
     • The higher the clock speed, the more instructions can be executed per second so the performance of the computer will be improved
     • The clock speed of a CPU is the number of fetch decode execute cycles than can be run every second
   • how
     • makes the cycles much faster

3. cores

   • what
     • 6 CPU cores = 6 CPU's
     • the number of independent processors
     • they work simultaneously (at the same time)
     • a dual core is 2 cores and a quad core is 4 cores
     • Cores run the fetch decode execute cycle simultaneously
   • how
     • executes commands faster

4. RAM

   • what
     • stores and transfers data
     • SRAM
       • static RAM
     • DRAM
       • dynamic RAM
     • RAM is volatile storage How?
     • RAM stores instructions and data while the program is running
   • random acess memory
   • how
     • transfers data

5. computer performance