The document discusses three key factors that affect computer performance: CPU speed, RAM, and hard disk. CPU speed is measured in Hertz and a higher clock speed means instructions can be processed faster. RAM size and speed impact performance, as more RAM allows more information to be readily accessible. Hard disk speed also influences overall performance, as faster hard disks improve performance.

1. Computer Performance
F O R C L A S S I X S T U D E N T S
B Y I T T E A C H E R M R .
N O R S E R

2. A Few Things Which Affect The Overall Performance Of A
Computer Are Listed Below:-
1. CPU Speed
2. RAM (random access memory)
3. Hard Disk

3. 1. CPU Speed
• CPU clock speed is measured in Hertz (Hz). It is also called the Clock
rate.
• This speed is a measure of how many clock cycles a CPU can perform
per second.
• Eg – 2GHz = 2,000,000,000 clock cycles per second.
• The higher the clock speed, the faster the instruction will be
processed by the CPU

4. 2. RAM
• If the amount of RAM is large enough to hold information in it, this
may result in faster performance.
• Faster CPU mean better performance.
• Complex heavy performance, high utility systems, and gaming
systems need larger RAMs.

5. 3. Hard Disk
• The size and speed of hard disk is also crucial for a computing device.
• The faster is the speed, better will be the overall performance.