A computer is an electronic device that can be used to store data and perform operations. Computers can be divided into four types based on their size. They are:
The CPU used in microcomputers is a microprocessor, which originated in the late 1970s. The first microcomputers were approximately 8-bit microprocessor chips.
The 8-bit chip can retrieve data/instructions from memory, process and operate them all at once. Microcomputers are affordable in cost and easy to use. Personal computers (PCs) can fall into this category.
It originated in the 1960s. The original minicomputers were 8-bit and 12-bit machines, but in the 1970s, almost all minicomputers were 16-bit machines. 16-bit minicomputers had the advantages of large instruction sets, address fields, and efficient storage.
It originated in the 1960s. The original minicomputers were 8-bit and 12-bit machines, but in the 1970s, almost all minicomputers were 16-bit machines. 16-bit minicomputers had the advantages of large instruction sets, address fields, and efficient storage.
Minicomputers are larger than microcomputers but smaller than mainframe computers. Minicomputers cost between Rs 5 and 1.5 lakh, depending on configuration.
Mainframe computers are usually 32-bit processors. They are suitable for large organizations managing high-volume applications. Mainframe computers are also used as central host computers in distributed systems.
Mainframe computers have processing speeds expressed in terms of 10 million to 100 million instructions per second and cost between $1 million and $5 million, depending on the configuration.
Supercomputer is the top product of the most advanced mainframe computer. They are almost the fastest processing machines, using multi-processor technology to solve problems.
The size of a computer is primarily based on three basic factors:
These three factors are as follows:
Main Memory Capacity
Data processing speed
The ability to support different input, output and mass storage devices (such as printers, tape drives, etc.)
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