Write short notes on: a) Microcomputer b) Super computer

a)Microcomputer: A micro computer is a computer with a microprocessor as its CPU. They are cheap, compact and can be easily accommodated on a study table. Now-a-days mostly used computers are microcomputers. It is called Home PC or Personal Computer (PC) because it is a single user computer. It supports many higher level languages, multimedia, graphics, 3D graphics and games. The Internet is popular due to PC and it is available for all income groups. It contains memory in the form of ROM (Read Only Memory) and RAM (Random Access Memory), I/O (input/output) ports, and a bus or system of interconnecting wires, housed in a unit that is usually called a motherboard. IBM, Hewlett Packard, Apple, Compaq are some well known companies which manufacture microcomputers.

Super computer: Supercomputers are the largest, fastest and the most expensive computers. They have a large memory capacity and very high processing speed. They are used for solving very large and complex problems. It can solve the very difficult and complex problems within a nano seconds. It is multi-user, multiprocessor large computer with a very high efficiency and storing capacity. A number of RISC (Reduced Instruction Set Computer) processors are used. It is used to forecast the weather and global climates, and is also used in military research and defense systems. They are also used in astronomy, automobile design, aircraft design, robot design, nuclear physics and oil exploration. Examples of supercomputers are CRAY-XMP/14, CDC-205 etc.