Classification of computers
- 1. CLASSIFICATION OF COMPUTERS Submitted by Anandhu v & Akshay Shaji
- 2. QUESTIONS 1. How do HP manufactured and released a microcomputer in 1970? 2. What are the input devices that built in a laptop computer? 3. Which keyboard used to run tablet PC? 4. Are palm top computers and microcomputers same type of computer? Explain the reason. 5. What are supercomputers used for?
- 3. CLASSIFICATION OF COMPUTERS? Computers are classified by Size And Capacity. When classified according to size and capacity, the following types of computers can be identified.
- 4. TYPES OF COMPUTERS • Micro computers or Personal Computers • Notebook Computers or Laptop Computers • Palmtop • Tablet PC • Mini Computer • Mainframe Computers • Super Computers
- 5. Micro computers or Personal Computers • A microcomputer is a computer with a central processing unit (CPU) as a microprocessor. Designed for individual use, a microcomputer is smaller than a mainframe or a minicomputer. • In 1970, Hewlett-Packard (HP) manufactured and released a microcomputer as a calculator with varying levels of programmability. • Different brands and shapes are available • Inexpensive
- 6. USES OF MICROCOMPUTER • Word Processing • Home entertainment • Home banking • Printing • Surfing the internet • Etc..
- 7. NOTEBOOK COMPUTERS OR LAPTOP COMPUTERS • Laptop computers, also known as notebooks, are portable computers that you can take with you and use in different environments. • They include a screen, keyboard, and a trackpad or trackball, which serves as the mouse. • Today, most laptop computers are becoming thinner and lighter to help compete with other devices, such as tablets. Some laptops may be also be referred to as Ultrabooks.
- 8. HISTORY • The IBM 5100 is the first portable computer, which was released on September 1975. The computer weighed 55 pounds and had a five inch CRT display, tape drive, 1.9 MHz PALM processor, and 64 KB of RAM. In the picture is an ad of the IBM 5100 taken from a November 1975 issue of Scientific America. • The first truly portable computer or laptop is considered to be the Osborne I, which was released on April 1981 and developed by Adam Osborne. The Osborne I weighed 24.5 pounds, had a 5-inch display, 64 KB of memory, two 5 1/4" floppy drives, ran the CP/M 2.2 operating system, included a modem, and cost US$1,795.
- 9. PALMTOP • A palmtop computer is a personal computer or other electronic device that has many of the same features as a computer and fits in the palm of your hand. A good example of an early palmtop computer is the PalmPilot
- 10. TABLET PC • A tablet PC is a portable PC that is a hybrid between a personal digital assistant (PDA) and notebook PC. Equipped with a touch screen interface, a tablet PC usually has a software application used to run a virtual keyboard. However, many tablet PCs support external keyboards.
- 11. MINI COMPUTER • A minicomputer is a type of computer that possesses most of the features and capabilities of a large computer but is smaller in physical size. • Minicomputers are mainly used as small or mid- range servers operating business and scientific applications.
- 12. MAINFRAME COMPUTERS • A mainframe is an ultra high-performance computer made for high-volume, processor-intensive computing. • They are mainly used by government institutions and large companies for tasks such as census. • It is also known as big iron.
- 13. SUPER COMPUTERS • A super computer is a computer with great speed and memory. This kind of computer can do jobs faster than any other computer of its generation. • They are usually thousand of times faster than ordinary personal computers. • Traditionally, supercomputers have been used for scientific and engineering applications. • Supercomputer PARAM 8000 (made by the Centre for Development of Advanced Computing (C-DAC)) was launched on July 1, 1991 is considered India's first supercomputer.
- 14. HISTORY • Supercomputer were introduced in the 1960s and were designed by Seymour Cray at Control Data Corporation(CDC), which led the market into the 1970s until Cray left to form his own company, Cray Research. • He then took the supercomputer market with his new designs, holding the top spot in supercomputing for five years(1985-1990). • Today, supercomputers are typically designs and produce by traditional companies such as Cray.