- Types of Computer
There are four main types of computers:
Personal computer, Supercomputers, Mainframe computers, and Midrange computer:
1) Personal computers: Personal computers are also known as PCs, are the least powerful, yet the most widely used and fastest-growing type of computers. There are five types of personal: desktops, laptops, tablets, smartphones, and wearables.
a) Desktop computer are small enough to to fit on top of or alongside a desk are too big to carry around, desktop computers are used for a variety of purposes, including graphic design, data entry, research and gaming. Whether you're in an office or at home, you've likely encountered the personal computer that sits atop many desks.
b) Laptop computers are portable and lightweight and fit into most briefcases. Today, laptops are commonly used in a variety of settings, such as at work, in education, for playing games, web browsing, for personal multimedia, and general home computer use.
c) Tablets, also known as tablet computers, are smaller, lighter, and generally less power full than laptop. like a laptop, tablets have a flat screen but typically do not have a standard keyboard, instead, tablets typically use a virtual keyboard that appears on the screen and is touch-sensitive. Tablets can be used to browse the Internet, check email, download and read books, play games, watch videos, organize content, and much more.
d) Smartphones are the most widely used handled computers. smartphones are cell phones with wireless connections to the internet and processing capabilities. A smartphone is a cell phone that allows you to do more than make phone calls and send text messages. Smartphones can browse the Internet and run software programs like a computer. mobile computers includes Wearable devices like Smart watches ( Apple watch ) .
2) Supercomputers: Supercomputers are the most powerful type of computers. these machines are special, high-capacity computers used by very large organisations. Supercomputers are typically used to store and process massive amount of data. For example, they are used to analyse and predict worldwide weather patterns. IBM's Blue Gene and CDAC's PARAM are two of the fastest computers in the world.
3) Mainframe computers: Mainframe computers occupy specially wired, air-conditioned rooms. Although not nearly as powerful as supercomputers, mainframe computers are capable of great processing speeds and data storage. For example, insurance companies use mainframes to process information about millions of policyholders.
4) Midrange computers: Midrange computers also referred to as servers and also called as mini computer, are computers with processing capabilities less powerful than a mainframe computer yet more powerful than a personal computer. Originally used by medium-size companies or departments of large companies to support their processing needs, today midrange computers are most widely used to support or serve end users for such specific needs as retrieving data from a database or supplying access to application software.
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