Tech 21 Century

  • About
  • MY BOOKS
  • Home
  • Electronics
    • Apple Products
    • Gadgets
    • Mobile Phones
  • General Tech
    • Tech News
    • Smart Home Tech
    • Technology Certifications
    • VoIP
    • Web Hosting
  • Software
    • Windows
    • Mobile Apps
    • Software Product Reviews
    • Top Software Products
    • Video Conversion Software
  • Product Reviews
    • Computers and Peripherals
    • Home Routers and Modems
    • Mesh WiFi
    • Smart Home
    • VPN
  • Security
  • Computers
  • Gaming
  • Internet
  • Video Streaming

10-point Comparison of Chromebook vs Laptop – Which one Wins?

pros cons chromebook vs laptop

The physical appearance of Chromebooks and Laptops look the same, but they are a lot different when it comes to overall functionality. In this article we will compare the two portable computer devices and discuss the main differences of each together with our recommendations. The most notable difference between a Chromebook and a laptop is […]

Filed Under: Computers

Will a Laptop Work Without a Battery? Is It Safe? Let’s Find Out Here

battery outside from the laptop case

Recently, I got into the process of replacing my laptop’s battery to get a new one since it went completely dead. But I wondered whether my laptop would work in the meantime when I don’t have a battery installed in it. So out of curiosity, I did some research and here’s what I’ve learned. Will […]

Filed Under: Computers

12 Different Types of Computer Keyboards Explained (with Pictures)

discussion of various keyboards for PCs

Most of us are used to the standard keyboards that are attached to our computers without looking for other types of computer keyboards. Without questioning what functionalities we require from our keyboards, we type away oblivious to the fact that there could be a better one out there for us. From flexible keyboards, easily rolled […]

Filed Under: Computers

Best Graphics Processing Unit (GPU) & Graphics Card Brands for Computers

top graphics card gpu brands

In a subculture where specs rule everything, the GPU is a sign that gamers have tremendous influence on what’s prioritized by the manufacturers. While the GPU is ranked among the top components in terms of importance, high-end GPUs typically only show their actual value when playing the latest AAA games or taking part in serious […]

Filed Under: Computers

10 Best Power Supply Unit (PSU) Brands for PC Computers

top psu brands for PC computers

Building a PC can be complicated and technical work. Although the power supply unit (PSU) is one component that seems simple, it is still an important element for building a reliable and efficient computer. You won’t have to worry about compatibility issues between your PSU and your GPU or CPU for example, but that doesn’t […]

Filed Under: Computers

Comparison of Human Brain vs Computer – Which One is Better?

compare human brain and computer

Which is more Powerful: Human Brain or Computer? There was a time when a question like this would have made eyebrows raise, in a “what the heck are you talking about?” kind of attitude. But now, with artificial intelligence, technology, and machine learning being as rampant and advanced as they can ever be, it’s actually […]

Filed Under: Computers

17 Best Operating Systems (OS) for Raspberry Pi 4, 3

alternative os for raspberry pi 3 or 4

Since its release in 2012, the Raspberry Pi has made a wave in the industry. Initially designed to bring coding to schools and third-world countries, the Raspberry Pi is much more than that. This powerful minicomputer (also called SBC – Single Board Computer) was produced in the United Kingdom by Broadcom and The Raspberry Foundation. […]

Filed Under: Computers, Electronics

What is the Difference between CPU and GPU in Computers

The CPU and GPU are integral components of a computer system and are similar to each other in some ways. Both of these components include billions of transistors and can process thousands of operations per second. With that said, both of these units have entirely different roles in a computer system. In this article, we […]

Filed Under: Computers, Electronics

What is the Difference Between RAM and ROM in Computers?

motherboard with RAM

Primary memory is sometimes known as main memory or “internal memory,” as well as primary storage. Primary memory refers to computer memory that is immediately accessible by the CPU via the data bus. This enables a processor to access memory locations where active applications and recently processed data are saved. There are 2 parts of […]

Filed Under: Computers

15 Best Operating Systems (OS) for an Old Laptop or PC Computer

light os for old laptop computers

As computer hardware ages, performance tends to degrade on modern operating systems and on heavier applications. An old laptop or desktop computer might struggle to run a modern OS after three to five years. It doesn’t help that software and application requirements continue to increase over time. Therefore, older systems tend to encounter performance issues […]

Filed Under: Computers

« Previous Page
Next Page »

Search this Site

Copyright © 2026 | Contact | Privacy Policy & Disclaimers | Amazon Affiliate Disclaimer | Terms of Service