clock definition computer

Similarly, in a communications device, a clock is used to set the transmission speed and may also be used to synchronize the pulses between sender and receiver. 'All Intensive Purposes' or 'All Intents and Purposes'? Clock properties realtime It is intended to represent the real time, and thus it can be translated in some way to and from calendar representations (see to_time_t and from_time_t member functions). Clock Speed Clock speed is the rate at which a processor can complete a processing cycle. The word performance in computer performance means “How well is the computer doing the work it is supposed to do?”. See the full definition for clock in the English Language Learners Dictionary, Thesaurus: All synonyms and antonyms for clock, Nglish: Translation of clock for Spanish Speakers, Britannica English: Translation of clock for Arabic Speakers, Britannica.com: Encyclopedia article about clock. In other words: not a digital clock. clock cycle: In a computer, the clock cycle is the time between two adjacent pulses of the oscillator that sets the tempo of the computer processor. The CPU requires a fixed number of clock ticks (or clock cycles) to execute each instruction. This seems simple on its face. See more. Conversely, having more processor cores, but a slower clock speed means your computer can work with more … Clock definition is - a device other than a watch for indicating or measuring time commonly by means of hands moving on a dial; broadly : any periodic system by which time is measured. Clock Cycle: A clock cycle, or simply a "cycle," is a single electronic pulse of a CPU . computer clock definition in English dictionary, computer clock meaning, synonyms, see also 'computer architecture',computer conferencing',computer dating',computer game'. Find out inside PCMag's comprehensive tech and computer-related encyclopedia. The clock rate, or clock speed, of a computer is the rate at which a central processing unit is able to perform basic functions.It is normally measured in megahertz, or millions of cycles per second, or even gigahertz, which are billions of cycles per second. Internal clock definition is - a system in the body that controls when a person needs to sleep, eat, etc.. How to use internal clock in a sentence. This page contains a technical definition of Clock Speed. A clock is a device used to measure, keep, and indicate time. Specifically, system_clock is a system-wide realtime clock. During each cycle, a CPU can perform a basic operation such as fetching an instruction, accessing memory, or writing data. computer clock definition in English dictionary, computer clock meaning, synonyms, see also 'computer architecture',computer conferencing',computer dating',computer game'. Semiconductor devices operated at higher frequencies and voltages increase power consumption and heat. Noun: system clock. Clock classes provide access to the current time_point. wall time (real-world time or wall-clock time): Wall time, also called real-world time or wall-clock time, refers to elapsed time as determined by a chronometer such as a wristwatch or wall clock. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units: the day, the lunar month, and the year. An instrument other than a watch for measuring or indicating time, especially a mechanical or electronic device having a numbered dial and moving hands or a digital display. Your computer’s CPU’s performance depends on clock rate of the CPU as well as its core numbers. Some have Roman Numerals (I, II, III, etc) instead, or no numbers at all! The user-cpu time and system-cpu time are pretty much as you said - the amount of time spent in user code and the amount of time spent in kernel code. Every computer contains an internal clock that measures the rate a central processing unit (CPU) executes instructions and synchronizes all of the various computer components. CMOS (pronounced see-moss) is sometimes referred to as Real-Time Clock (RTC), CMOS RAM, Non-Volatile RAM (NVRAM), Non-Volatile BIOS memory, or complementary … Basically, having a high clock speed but just one or two cores means your computer will be able to load and interact with a single application quickly. The accuracy determines how close the clock is to an official time reference like UTC. 2. clock cycle: In a computer, the clock cycle is the time between two adjacent pulses of the oscillator that sets the tempo of the computer processor. It is usually measured in MHz (Megahertz) or GHz (Gigahertz). 2. system clock (noun) an electronic device in a computer that issues a steady high-frequency signal that synchronizes all the internal components. Same as a cycle, the smallest unit of time recognized by a device. used in gay vernacular especially among drag queens to call out someone's flaws, to uncover or reveal the truth in a situation or one's true gender (The reference to a wall clock is how the term originally got its name.) This article has discussed all the clock rate of a CPU. How to Free Up Space on Your iPhone or iPad, How to Save Money on Your Cell Phone Bill, How to Find Free Tools to Optimize Your Small Business, How to Get Started With Project Management. For example, a CPU with a clock rate of 1.8 GHz can perform 1,800,000,000 clock cycles per second. Test Your Knowledge - and learn some interesting things along the way. Clock rate means the number of pulses generated by CPU in one second. A clock not only needs to be read, it must be set, too. It explains in computing terminology what Clock Speed means and is one of many technical terms in the TechTerms dictionary. A PC’s clock speed is an indicator of its performance and how rapidly a CPU can process data (move individual bits). For example, a 4GHz processor performs 4,000,000,000 clock cycles per second. Type of: clock, electronic device. In electronics and especially synchronous digital circuits, a clock signal (historically also known as logic beat ) oscillates between a high and a low state and is used like a metronome to coordinate actions of digital circuits. For example, a busy computer often “borrows” time from the clock. Also called clock rate, the speed at which a microprocessor executes instructions.Every computer contains an internal clock that regulates the rate at which instructions are executed and synchronizes all the various computer components. Clock definition is - a device other than a watch for indicating or measuring time commonly by means of hands moving on a dial; broadly : any periodic system by which time is measured. Meaning of system clock. CPU clock speed, or clock rate, is measured in Hertz — generally in gigahertz, or GHz. signed count © 1996-2020 Ziff Davis, LLC. A real-time clock (RTC) is a computer clock, usually in the form of an integrated circuit that is solely built for keeping time. Clock Cycle: A clock cycle, or simply a "cycle," is a single electronic pulse of a CPU . The frequency of the periodic pulse that schedule the function and use of a digital computer. In a computer, clock speed refers to the number of pulses per second generated by an oscillator that sets the tempo for the processor. A time-of-day clock in a computer system ; An electronic device in a computer that issues a steady high-frequency signal that synchronizes all the internal components. system clock synonyms, system clock pronunciation, system clock translation, English dictionary definition of system clock. A CPU’s clock speed rate is a measure of how many clock cycles a CPU can perform per second. A typical computer’s clock can be off by as much as several minutes a day, depending on what the computer is doing. 1. a time-of-day clock in a computer system 2. an electronic device in a computer that issues a steady high-frequency signal that synchronizes all the internal components Familiarity information: SYSTEM CLOCK used as a noun is rare. For example, a CPU with a higher clock speed from five years ago might be outperformed by a new CPU with a lower clock speed, as the newer architecture deals with instructions more efficiently. The clock speed is measured in Hz, typically either megahertz (MHz) or gigahertz (GHz). The clock period or cycle time, T c, is the time between rising edges of a repetitive clock signal.Its reciprocal, f c = 1/T c, is the clock frequency.All else being the same, increasing the clock frequency increases the work that a digital system can accomplish per unit time. A PC’s clock speed is an indicator of its performance and how rapidly a CPU can process data (move individual bits). CMOS Battery on a Computer Motherboard. Clock properties realtime It is intended to represent the real time, and thus it can be translated in some way to and from calendar representations (see to_time_t and from_time_t member functions). A PC’s clock speed is an indicator of its performance and how rapidly a CPU can process data (move individual bits). The unit of measurement called a hertz (Hz), which is technically one cycle per second, is used to measure clock speed. How to use clock … Your computer’s CPU’s performance depends on clock rate of the CPU as well as its core numbers. One megahertz is equal to one million cycles per second, while one gigahertz equals one billion cycles per second. clock definition: 1. a device for measuring and showing time, usually found in or on a building and not worn by a…. Please tell us where you read or heard it (including the quote, if possible). In computers, the clock cycle is the amount of time between two pulses of an oscillator. The accuracy determines how close the clock is to an official time reference like UTC. Encyclopedia: System clock. It is usually measured in MHz (Megahertz) or GHz (Gigahertz). system clock (noun) an electronic device in a computer that issues a steady high-frequency signal that synchronizes all the internal components How to pronounce system clock? The computer becomes so obsessed with a task that the basic job of updating the PC’s ticker just doesn’t happen. Derived forms: system clocks. Nearest Enrich your vocabulary with the English Definition dictionary For personal computers, clock ticks generally refer to the main system clock, which runs at 66 MHz.This means that there are 66 million clock ticks (or cycles) per second. During each cycle, a CPU can perform a basic operation such as fetching an instruction, accessing memory, or writing data. The clock speed is measured in Hz, typically either megahertz (MHz) or gigahertz (GHz). A "timesharing clock" interrupts the CPU at regular intervals and allows the operating system to divide its time between active users and/or applications. Alternatively referred to as clock rate and processor speed, clock speed is the speed that the microprocessor executes each instruction or each vibration of the clock.The CPU requires a fixed number of clock ticks, or cycles, to execute each instruction.. A higher frequency (bigger number) suggests better performance in … A time clock. Since modern CPUs run much faster (up to 3 GHz), the CPU can execute several instructions in a single clock tick. Computer performance is the amount of work accomplished by a computer system. Clock definition, an instrument for measuring and recording time, especially by mechanical means, usually with hands or changing numbers to indicate the hour and minute: not designed to be worn or carried about. Can you spell these 10 commonly misspelled words? A clock or watch is called "analog" when it has moving hands and (usually) hours marked from 1 to 12 to show you the time. If the difference between the client computer clock and the domain controller clock is less than the maximum time difference specified in this setting, any time stamp that is used in a session between the two computers is considered to be authentic. A PC’s clock speed is an indicator of its performance and how rapidly a CPU can process data (move individual bits). • SYSTEM CLOCK (noun) The noun SYSTEM CLOCK has 2 senses: 1. a time-of-day clock in a computer system 2. an electronic device in a computer that issues a steady high-frequency signal that synchronizes all the internal components See per clock, clockless computing and Hertz. Calculating Clock, the earliest known calculator, built in 1623 by the German astronomer and mathematician Wilhelm Schickard.He described it in a letter to his friend the astronomer Johannes Kepler, and in 1624 he wrote again to explain that a machine that he had commissioned to be built for Kepler was, apparently along with the prototype, destroyed in a fire. The display of third-party trademarks and trade names on this site does not necessarily indicate any affiliation or the endorsement of PCMag. PCMag Digital Group. Using a quartz crystal, the CPU clock breathes life into the microprocessor by feeding it a constant flow of pulses. He's making a quiz, and checking it twice... Test your knowledge of the words of the year. Nearest signed count A computer will normally have a maximum clock speed set by default, but it is possible to change this speed in the computer BIOS. Meaning of clock frequency. The quartz crystal generates continuous waves, which are converted into digital pulses. ... a time-of-day clock in a computer system. For example, a 200 MHz CPU receives 200 million pulses per second from the clock. Computer processors can execute one or more instructions per clock cycle, depending on the type of processor. Clock definition, an instrument for measuring and recording time, especially by mechanical means, usually with hands or changing numbers to indicate the hour and minute: not designed to be worn or carried about. Define system clock. It basically depends on response time, throughput and execution time of a computer … For example, a busy computer often “borrows” time from the clock. Countermeasure. • SYSTEM CLOCK (noun) The noun SYSTEM CLOCK has 2 senses:. Clock speed is measured by how many ticks per second the clock makes. A clock not only needs to be read, it must be set, too. Commonly, operating voltage is also increased to maintain a component's operational stability at accelerated speeds. Specifically, system_clock is a system-wide realtime clock. What does system clock actually mean? When your computer realizes that it needs more clock cycles (say, when you’re trying to render a video), then it will crosscheck the need for speed with its temperature. A source of regularly occurring pulses used to measure the passage of time, as in a computer. PCMag.com is a leading authority on technology, delivering Labs-based, independent reviews of the latest products and services. The higher the frequency of the CPU's clock, the more logical operations it can perform per second. Some have Roman Numerals (I, II, III, etc) instead, or no numbers at all! Derived forms: system clocks. It is typically measured in megahertz or gigahertz. The computer becomes so obsessed with a task that the basic job of updating the PC’s ticker just doesn’t happen. Type of: clock, electronic device. What made you want to look up clock? If you click an affiliate link and buy a product or service, we may be paid a fee by that merchant. Basically, having a high clock speed but just one or two cores means your computer will be able to load and interact with a single application quickly. Conversely, having more processor cores, but a slower clock speed means your computer can work with more applications at a time, but each may run a little slower. A clock or watch is called "analog" when it has moving hands and (usually) hours marked from 1 to 12 to show you the time. 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