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What is a computer?The basic parts of a computer and the cycle that turns instructions into useful work.Learn · 2 min read How CPUs workA practical explanation of CPU instructions, cores, clock speed and the work a processor actually does.Learn · 2 min read What is RAM?Learn what computer memory holds, how it differs from storage and when capacity matters.Learn · 2 min read What is an SSD?How solid-state storage keeps files, how it compares with a hard drive and what its labels mean.Learn · 2 min read
What is RAM?Learn what computer memory holds, how it differs from storage and when capacity matters.Learn · 2 min read What is DNS?How the Domain Name System helps a device find a website and why a lookup can fail.Learn · 2 min read Computer won’t turn onSeparate a power failure from a display or startup problem before attempting repairs.Troubleshooting · 2 min read How to install RAM in a desktop PCCheck compatibility, fit desktop memory safely and confirm that the computer recognises it.Guide · 2 min read

Hardware

How CPUs workA practical explanation of CPU instructions, cores, clock speed and the work a processor actually does.Learn · 2 min read What is RAM?Learn what computer memory holds, how it differs from storage and when capacity matters.Learn · 2 min read DDR4 vs DDR5The practical differences between two generations of desktop and laptop memory.Learn · 2 min read What is an SSD?How solid-state storage keeps files, how it compares with a hard drive and what its labels mean.Learn · 2 min read

Networking

What is DNS?How the Domain Name System helps a device find a website and why a lookup can fail.Learn · 2 min read

Troubleshooting

Computer won’t turn onSeparate a power failure from a display or startup problem before attempting repairs.Troubleshooting · 2 min read Wi-Fi keeps disconnectingWork out whether the connection drops at the device, router or internet service.Troubleshooting · 2 min read

Guides

How to install RAM in a desktop PCCheck compatibility, fit desktop memory safely and confirm that the computer recognises it.Guide · 2 min read How to check how much RAM is installed in Windows 11Find installed memory in Settings and see current use in Task Manager.Guide · 2 min read

Recently updated

What is a computer?The basic parts of a computer and the cycle that turns instructions into useful work.4 October 2026 How CPUs workA practical explanation of CPU instructions, cores, clock speed and the work a processor actually does.4 October 2026 What is DNS?How the Domain Name System helps a device find a website and why a lookup can fail.4 October 2026 DDR4 vs DDR5The practical differences between two generations of desktop and laptop memory.4 October 2026 What is RAM?Learn what computer memory holds, how it differs from storage and when capacity matters.4 October 2026 What is an SSD?How solid-state storage keeps files, how it compares with a hard drive and what its labels mean.4 October 2026 Wi-Fi keeps disconnectingWork out whether the connection drops at the device, router or internet service.4 October 2026 Computer won’t turn onSeparate a power failure from a display or startup problem before attempting repairs.4 October 2026