History of computer, laptop and mobile phones
The first electronic computers were developed in the mid-20th century, and they were large, expensive, and difficult to use. These early computers were called mainframes, and they were used by governments and large businesses for complex calculations and data processing.
In the late 1960s and early 1970s, smaller computers called minicomputers were developed. These computers were still quite large and expensive, but they were more affordable and easier to use than mainframes.
The first personal computers, or PCs, were developed in the 1970s. These computers were much smaller and cheaper than earlier computers, and they were designed for use by individual people. The first PCs were desktop computers, which were designed to be used at a desk or table.
In the 1980s, laptops were developed. These were portable computers that were smaller and lighter than desktop computers, and they could be used on the go. Laptops were initially quite expensive and not very powerful, but they became more affordable and powerful over time.
In the 1990s and 2000s, mobile phones were developed that had the ability to connect to the internet. These phones were called smartphones, and they were essentially tiny computers that could fit in your pocket. Many smartphones also had the ability to run apps, which allowed them to do many of the same things that desktop and laptop computers could do.
In recent years, there has been a trend toward smaller, more portable computers. Devices like tablets and Chromebooks are becoming more popular, and many people are using these devices instead of traditional desktop or laptop computers. There has also been a rise in the use of cloud computing, which allows people to access their files and applications from any internet-connected device.