The ins and outs of clock frequencies, the origin and development of clocks

The clock originated in Babylon, 6,000 years ago the Babylonians made a sundial, judging the time by the shadow of the sun, and later in order to make up for the lack of the sundial in the lightless environment, the drip was designed to judge the time with the speed of water flow, in 1283, the first mechanical filial piety clock appeared in England, and gradually designed the clock tower, clocks and other timekeeping tools.

What is the origin and development of the clock.

1. Introduction to the origin.

In the primitive period, people would use the color of the sky and the brightness of the sun to judge the time, in the ancient Egyptian period, it was found that shadows would change with time, and more than 6,000 years ago, Babylon used stone to build a sundial and use sunlight to judge the time, which is also the earliest clock.

2. Development history.

In 140 BC, the ancient Greeks used gears to form a timer, and in the seventeenth century, pendulums and clocks gradually appeared, making time more accurate, in 1840, electric clocks appeared, and in the 20th century, the era of quartz clocks began.

3. The main finger punch should be classified.

Clocks are mainly divided into two categories, namely, the prime mover has mechanical force and electricity, among which a mechanical clock is a timer that uses the release energy of a hammer or spring as a power to push the gears to turn, such as an old-fashioned table clock, while an electronic clock represents a timer that uses electrical energy as a power, such as an electronic watch.

The earliest clock is the sundial, which uses the change of the shadow of the object on a plane to keep time, and the water clock with the sundial is the earliest timekeeping instrument, and there are many kinds of instruments for calculating time intervals, including the most well-known hourglass. The escapement was invented in Europe in 1300, and later the first mechanical clocks were created that could make use of oscillating chronometric devices such as balance wheels. Clockwork-driven clocks appeared around the 15th century, the watch industry began to develop around the 15th and 16th centuries, and the pendulum clock was invented in 1656.

The history of the development of clocks can be roughly divided into three stages of evolution, that is: 1. From large clocks to small clocks. 2. Transition from small clocks to pocket watches. 3. From pocket watches to watches. Each stage of development is inseparable from the technological inventions of the time.

In 1088 AD, the Song Dynasty scientists Su Song and Han Gonglian and others created the Water Transport Instrument Elephant Stage, which is a device that combines an armillary sphere, an armillary image and a mechanical timer. In the 14th century, clocks appeared on tall buildings in Britain, France and other countries in Europe, and the power of the clock was to suspend a hammer with a rope and use the gravitational force generated by gravity. The appearance of iron clockwork at the end of the 15th century and the beginning of the 16th century gave the clock a new impetus and created the conditions for the miniaturization of the clock.

During the 18th century, various escapements were invented, laying the foundation for the further creation and development of pocket watches. In 1726, the Englishman George Graham perfected the I-wheel escapement, which was different from the vertically positioned axle escapement that had been invented earlier, so that the pocket watch movement was relatively thinner.

The clock originated in Babylon, six thousand years ago, the Babylonians made a sundial, judging the time by the shadow of the sun, and later in order to make up for the lack of the sundial in the lightless environment, the drip was designed to judge the time with the speed of the water flow, in 1283, the first mechanical clock appeared in England, and gradually designed the clock tower, clocks and other timekeeping tools. What is the origin and development of the clock.

1. Introduction to the origin.

In the primitive period, people would use the color of the sky and the brightness of the sun to judge the time, in the ancient Egyptian period, it was found that shadows would change with time, and more than 6,000 years ago, Babylon used stone to build a sundial and use sunlight to judge the time, which is also the earliest clock.

2. Development history.

The first clocks were bulky and could not tell the time in a lightless environment, so there was a copper kettle dripping, using the speed of water to determine the time, in 140 BC, the ancient Greeks used gears to form a timer, in the seventeenth century gradually appeared pendulum and clockwork, so that the time was more accurate, in 1840, there was an electric clock, and in the 20th century entered the era of quartz clocks.

3. Main classifications

Clocks are mainly divided into two categories, namely, the prime mover has mechanical force and electricity, among which a mechanical clock is a timer that uses the release energy of a hammer or spring as a power to push the gears to turn, such as an old-fashioned table clock, while an electronic clock represents a timer that uses electrical energy as a power, such as an electronic watch.

This is what we are most concerned about, what we mean by etc., generally speaking, the higher the frequency, the faster the speed of the CPU, and the higher the whole machine.

The clock frequency is the external clock frequency of the CPU, which is provided by the computer motherboard, which used to be generally 66MHz, and there are also motherboards that support 75 each 83MHz, and the latest chipset BX of Intel uses a clock frequency of 100MHz. In addition, some non-Intel chipsets such as MVP3 and MVP4 of VIA have also begun to support 100MHz external frequency. Elite BX motherboards can even support a 133MHz external frequency, which is a top choice for overclockers.

The clock frequency is like the engine speed, which rotates at a certain frequency, but it needs to be analyzed in detail if it can run multiple blocks.

The higher the frequency, the higher the signal quality requirements, the greater the energy consumption, compared with the same product, high frequency = high performance is not a ...... of one truck becoming two trucksIt's still that speed, but it's a lot.

How much water can be filled in a barrel depends on the shortest board, there is a certain truth on the computer that there is no absolute good, bad, cost determines performance, the same cost can have different emphasis, strengthen some aspects of performance, but other aspects are correspondingly weakened.

Clock Frequency: Refers to the basic frequency of the clock in the synchronization circuit.

The clock frequency is a source that provides the computer's timing signal, and this source generates a reference signal of different frequencies to synchronize each step of the CPU's operation, which is often referred to as the frequency. The main frequency of a CPU is the operating frequency (core clock frequency) inside its core, which is an important indicator to evaluate the performance of the CPU.

In electronic technology, a pulse signal is continuously emitted at a certain voltage amplitude and at certain time intervals. Technicians refer to the time interval between the first pulse and the second pulse as a cycle; The number of pulses that will be generated per unit of time (e.g., 1 second) is called frequency. The standard unit of measurement for frequency is Hz (Hertz).

The system clock frequency in the computer is quite accurate and stable.

The clock in a computer is not the same as the "clock" we use every day, it is simply a signal generator that continuously emits pulses at a specific frequency.

"A Brief History of Human Time"- The history of the development of timers.