There is no consensus on the safe amount of screen time for adults. Ideally, adults should limit their screen time similar to children and only use screens for about two hours a day. However, many adults spend up to 11 hours a day looking at a screen.
Source : https://en.wikipedia.org/wiki/Screen_time
While the average desktop PC lasts between 2 to 3 years, through good maintenance, it could last from 5 to 8 years. But even under good maintenance, you'll want to consider upgrades as even the best desktop computer that's well maintained will show a lot of these signs.
Source : https://www.hp.com/ca-en/shop/offer.aspx?p=time-for-desktop-upgrade
Four- or five-year-old computers may be worth upgrading if they feel a bit slow but you want to keep using them. Use the Crucial System Advisor to find extra memory that's compatible with your system; we recommend 8 GB or 16 GB for new computers.Jun 27, 2023
Source : https://www.nytimes.com/wirecutter/blog/buy-revive-laptop-for-kid/
Apple remains the head of the class for tech support. Dell however has the best score for repairs when it comes to the big fleets of desktops a company may need to buy.Oct 9, 2023
Source : https://www.pcmag.com/articles/the-best-pc-vendors-for-tech-support
Depending on the particular machine you're going with, you should expect to invest between $600 and $1,000 per desktop, and between $900 and $1,500 per laptop. Any extra monitors will run around $150 on average, as will a docking station for laptops. A keyboard/mouse combo will be another $50 to $100.
Source : https://www.optimalnetworks.com/how-much-does-a-computer-upgrade-project-cost/
A mechanical hard drive is arguably the most fragile element in any laptop computer. Because laptops can be subjected to drops and bumps, the hard drives within them can take a beating. Even with modern laptop design where shock absorbing systems are used to protect hard drives, there's an ever present risk of failure.Aug 10, 2016
Source : https://www.linkedin.com/pulse/whats-first-fail-most-common-laptop-computer-repairs-mick-hill-leeds