The direction which represents “on” also varies by country. In the USA and Canada and Mexico and the rest of North America, it is usual for the “on” position of a toggle switch to be “up”, whereas in many other countries such as the UK, Ireland, Australia, and in New Zealand it is “down.” …
What does i/o mean in electrical?
Stands for “Input/Output” and is pronounced simply “eye-oh.” Computers are based on the fundamental idea that every input results in an output.
Is 1 or 0 input or output?
1 and 0 are the main aspects of machine level input/output. 1 means there is an electrical signal (or there is electricity) and 0 means there is no electrical signal (or there is no electricity). On this level you get more into the electronic level of the computer.
What are the on/off symbols?
On/Off Power Button Symbols (I & O)
Power buttons and switches are usually labeled with “I” and “O” symbols. The “I” represents power on and the “O” represents power off.
What is an on/off switch?
on-off switch in British English
(ˈɒnˈɒf swɪtʃ) noun. a switch or button (on an electrical appliance, etc) which has an ‘on’ position and an ‘off’ position.
What is on on switch?
The ON-NONE-(ON) or ON-(ON) circuit is a momentary, double throw, two-position switch circuit. In general, for basic unlighted single pole switches, the maintained ON position closes the circuit at switch terminals 2 & 3, and the momentary ON position closes the circuit at switch terminals 1 & 2.
How does on off switch work?
Electric circuits work when electricity can move in a continuous loop. The electricity cuts off once the circle is broken. This is where the switch comes in. A toggle on/off circuit breaks the current when it is off.
Does the circle mean on or off?
(1 or | means on.) IEC 60417-5008, the power-off symbol (circle) on a button or toggle, indicates that using the control will disconnect power to the device. (0 or ◯ means off.) … IEC 60417-5010, the power on-off symbol (line within a circle), is used on buttons that switch a device between on and fully off states.
What does an on/off switch look like?
The power switch is a rocker switch and it has two symbols on the face: “O” and “—“. They are the International symbols for power “On” and power “Off”. “O” means the power is OFF and “–“means the power is ON. To turn the power washer ON, press the “—“down on the power switch.
Where did the on/off symbol come from?
The universal symbol is believed to have originated when the term ‘On and Off’ was replaced by numbers 1 and 0. The numbers were derived from the binary system, in which 1 stands for power and 0 indicates power off. The numbers were later merged to form the symbol.
Is it on and off or off and on?
1 Answer. They are interchangeable, and this ngram view suggests that on and off is currently about three times as common as off and on. Off and on was a bit more common before the beginning of the 20th century.
What is on and off on a rocker switch?
A rocker switch may have a circle (for “on”) on one end and a horizontal dash or line (for “off”) on the other to let the user known if the device is on or off. Rocker switches are used in surge protector s, display monitors, computer power supplies, and many other devices and applications.
Which way is on power supply?
It is recommended to mount the power supply with its ventilation top cover facing DOWNWARD. The fan in the power supply will take in the warm air inside the computer case, and the power supply will exhaust the air through the back.
What is the difference between an on/off switch and an on on switch?
These terms apply to three position switches. On/Off/On means that the center position disconnects the commons from both throws. On/On/On means that the common of the first pole makes contact with the normally open throw, while the common of the second pole makes contact with the normally closed throw.
What is the difference between on off on and on none on?
“On-Off-On” indicates the switch can rest in a middle position between connections; “On-None-On” indicates there are only two rest positions, making one connection or the other.
What is a closed switch?
A device designed to open or close a circuit under controlled conditions is called a switch. … An open switch is one without continuity: current cannot flow through it. A closed switch is one that provides a direct (low resistance) path for current to flow through.
What does the on/off switch on a power supply do?
IEC 5010, the power on-off symbol (line within a circle), is used on buttons that switch a device between on and fully off states. … The switch does not fully disconnect the device from its power supply.
What does SPDT mean?
A Single Pole Double Throw (SPDT) switch is a switch that only has a single input and can connect to and switch between the 2 outputs. This means it has one input terminal and two output terminals. A Single Pole Double Throw switch can serve a variety of functions in a circuit.
What is difference between SPST and SPDT?
SPST simply mean single pole, single throw. The product controls one circuit with one On position. SPDT means that it is a single pole double throw which means it has two ON positions.
What is a button in computer?
In computing, the term button (sometimes known as a command button or push button) refers to any graphical control element that provides the user a simple way to trigger an event, like searching for a query at a search engine, or to interact with dialog boxes, like confirming an action.
What is a rocker switch?
Rocker Switches house a button for operation that can be pressed on either end like a seesaw to connect or disconnect an electrical circuit. … The name “rocker switch” comes from the rocking motion that the switch makes when the button is pressed. It is also sometimes called a seesaw switch.
What is the red switch on the back of my computer?
This switch is used to set the input voltage to the power supply to either 110v/115v or 220v/230v. In other words, it’s telling the power supply how much power is coming from the power source.