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2. Why is my computer so slow? - AOL

   www.aol.com/products/blog/why-is-my-computer-so-slow

   Slow Startup: If your computer takes an unusually long time to boot up and become usable after turning it on, it could be a sign of underlying issues such as too many startup programs or a ...

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   With System Mechanic running in the background, you’ll also have junk deletion and optimum online connectivity running on autopilot. Shop it: System Mechanic, try for 30 days free then $4.99 a ...

4. 5 reasons why your computer could be running slow - AOL

   www.aol.com/news/2015-10-07-5-reasons-why-your...

   To check this on a Windows computer, click your Start button and then — depending on your operating system — go to My Computer, Computer or This PC. After selecting your main disk, you can see ...

5. Computer performance - Wikipedia

   en.wikipedia.org/wiki/Computer_performance

   In computing, computer performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. When it comes to high computer performance, one or more of the following factors might be involved:

6. Clock rate - Wikipedia

   en.wikipedia.org/wiki/Clock_rate

   An A/D Converter has a "clock" pin driven by a similar system to set the sampling rate. With any particular CPU, replacing the crystal with another crystal that oscillates at half the frequency ("underclocking") will generally make the CPU run at half the performance and reduce waste heat produced by the CPU.

7. Refresh rate - Wikipedia

   en.wikipedia.org/wiki/Refresh_rate

   Many high-end LCD televisions now have a 120 or 240 Hz (current and former NTSC countries) or 100 or 200 Hz (PAL/SECAM countries) refresh rate. The rate of 120 was chosen as the least common multiple of 24 fps (cinema) and 30 fps (NTSC TV), and allows for less distortion when movies are viewed due to the elimination of telecine (3:2 pulldown).