Computer Performance

Computer Performance

1. Clock Speed

   • What?
     • Measured in Hz
       • 1GHz - 1,000,000,000 instructions per second
       • 1Hz = 1 instruction/cycle per second
     • Cycles per second
       • Fetch-Decode-Execute Cycle
         • Instructions
   • Why?
     • Device may be slow at loading programs/applications and files
     • Minimum specification for software not being met
   • How?
     • Programs will load faster as more instructions can be processed per second

2. Cache

3. Cores

   • What?
     • Quad core - 4
     • Dual core - 2
     • Allows the device to run applications simultanesously
     • Individual processors
   • How?
     • Improves performance by allowing multiple applications to run at the same time
     • Improves multitasking
   • Why?
     • Good for multitasking
     • Minimum specification for software not being met

4. RAM