1. Before the chip, the calculator was mainly composed of mechanical parts.
2. Reason: Before the advent of chip technology, people mostly relied on mechanical calculators.
The working principle of the mechanical calculator is that through the operation of the device, the motion transmission, hook and count between the components are generated, so as to achieve the calculation function.
After the Second World War, electronic technology developed and people began to pay attention to the development of electronic calculators.
Until the 1970s, the emergence of integrated circuit technology and microelectronics technology, calculators began to use chip technology, so as to achieve more efficient and accurate computing functions.
3. With the continuous development of computer technology, people's demand for calculators has gradually decreased, and calculators are no longer indispensable tools in people's lives. However, there are still many people like to use calculators, especially in some specific fields, such as finance, science, engineering, etc., and they have high application value.
Before the chip, calculators were made of tubes. The first transistor radio was made in 1954. In 1967, he invented the handheld electronic calculator. In the same year, he invented the single chip microcomputer and obtained a patent on the single chip microprocessor in 1971. In 1978, Texas Instruments also introduced the first single-chip voice synthesizer, which was used in a range of hand-held educational toys.