Personal Computers are computers that are designed for an individual user. These computers are small and a relatively cheaper. In price, personal computers can range anywhere from a few hundred pounds to over five thousand pounds. Personal Computers use the microprocessor technology as they enable manufacturers to put an entire CPU onto one chip. They serve myriad purposes and can be put to use by various businesses for word processing, accounting, desktop publishing, and for running spreadsheet and database management applications. People across the globe use internet for playing games,surfing net and other online applications at their homes and personal use.
Types of Personal Computers
Personal computers can be classified on the basis of its size. There are two basic types of the traditional designs i.e the desktop models and tower models. There are several variations on these two basic types also.
This model of personal computer refers to a computer in which the power supply, motherboard, and other mass storage devices are stacked on top of each other in a cabinet.
Desktop model means computer that are designed to fit comfortably on top of a desk, with the monitor sitting on top of the computer. Desktop model computers as compared to the tower model are broad and low, whereas tower model computers are narrow and tall.
Also called ultra book. These are extremely popular because they are extremely lightweight and portable. Because of their small size ,typically less than 6 pounds or lesser than that,they have become so popular. These flat-panel technologies can produce a lightweight and non-bulky display screen. The quality of notebook display screens also differs considerably. Modern notebook computers are very similar to personal computers in terms of computing power.
Laptop are now a days also called notebook computers .These are small and portable .You can make them sit on your lap and work on them.
Subnotebook computers are portable computers that are even lighter and smaller than a full-sized notebook computer. They are light weight because they use a small keyboard and screen as compared to a notebook computer.
These computers are portable enough to be carried in one’s hand. They are extremely convenient for use but due to extremely small size of their keyboards and screens they have still not succeeded in to replacing notebook computers.
These computers as the name suggest fit in your palm. Due to extremely small size their use is limited to phone books and calendars .
PDA’s have electronic pens rather than keyboards for inputs unlike laptop. They also incorporate handwriting recognition features. and voice recognition technologies i.e can also react to voice input . PDAs are also called palmtops, hand-held computers and pocket computers.
Smart phones are cellular phones that function both as a phone and a small pc. They may use a pen or may have a small keyboard. They can be connectedto the internet wirelessly. Apple, Samsung, Sony are some manufacturers of smart phones.