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HISTORY

Over 200 years have passed since the invention of computers. In the 19th century, mechanical calculators were developed to deal with the intricacy of number-crunching issues that were initially envisioned by mathematicians and businesses. By the beginning of the 20th century, technological developments had allowed for the growth and sophistication of computers. Computers nowadays are hardly recognisable from 19th-century inventions like Charles Babbage's Analytical Engine or even from the enormous machines that took up entire rooms in the 20th century like the Electronic Numerical Integrator and Calculator.

Personal Computer Types

• Tower Model- The phrase describes a computer that has its motherboard, power supply, and mass storage units piled on top of one another inside a cabinet. Desktop variants, on the other hand, have these components housed in a smaller package. Tower versions' main benefit is that there are fewer space restrictions, which facilitates the installation of extra storage devices.

• Desktop Model -a computer that is built to easily fit on top of a desk, usually with the monitor on top of the computer. Tower model computers are tall and narrow, whereas desktop model PCs are wide and low. Desktop style PCs often only have three internal mass storage devices due to their design.
• Laptop computer -A compact, portable computer, small enough to fit on your lap. Nowadays, notebook computers are a more common name for laptop computers. Computer notebook
• Subnotebook computer- is a little bit smaller and lighter than a full-sized model. Subnotebook computers are typically similar to notebook computers in all other respects except for having a smaller keyboard and screen.