Computer Performance

Computer Performance

1. Clock speed

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

2. Cores

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

3. cache

   • To store data locally in order to speed up subsequent retrievals.

4. RAM

   • What
   • Why

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