A digital system[1] is a data technology that uses discrete (discontinuous) values. By contrast, non-digital (or analog) systems use acontinuous range of values to represent information. Although digital representations are discrete, the information represented can be either discrete, such as numbers, letters or icons, or continuous, such as sounds, images, and other measurements of continuous systems.
The word digital comes from the same source as the word digit and digitus (the Latin word for finger), as fingers are used for discrete counting. It is most commonly used in computing and electronics, especially where real-world information is converted to binary numeric form as in digital audio and digital Photography.
When data is transmitted, or indeed handled at all, a certain amount of noise enters into the signal. Noise can have several causes: data transmitted wirelessly, such as by radio, may be received inaccurately, suffer interference from other wireless sources, or pick up background noise from the rest of the universe. Microphones pick up both the intended signal as well as background noise without discriminating between signal and noise, so when audio is encoded digitally, it typically already includes noise.
Electric pulses transmitted via wires are typically attenuated by the resistance of the wire, and changed by its capacitance or inductance. Temperature variations can increase or reduce these effects. While digital transmissions are also degraded, slight variations do not matter since they are ignored when the signal is received. With an analog signal, variances cannot be distinguished from the signal and so provide a kind of distortion. In a digital signal, similar variances will not matter, as any signal close enough to a particular value will be interpreted as that value. Care must be taken to avoid noise and distortion when connecting digital and analog systems, but more when using analog systems.
There are several devices called digital to analog converters for this purpose. 1s and 0s of the digital signal are used to represent the digital signal in analog form.
hydraulics, used to power devices using high pressure fluidsfluidics, used to implement digital logic functions (i.e. replacement for digital electronics) using fluids
These are the digital devices solenoid, computer, computer hardware, mobile phone, camera etc.
Buy a new digital ready tv, get a digital receiver Sky or Freeview for your analogue tv
Taking pictures with digital imaging devices and analyzing them.
You can make movies on Apple devices playing different languages using apps for that purpose.
Digital notpads can be found on multiple devices. Smartphones such as iPhones are capable of using a notepad feature, as well as computers. Digital notepads make it easy for one to go paperless.
Digital forensics is the recovery and investigation of computer software found in digital devices. Digital forensics can also be referred to as computer crime. Digital forensics was originally called computer forensics but was changed to encompass all digital devices.
The purpose of digital design is to create visual and interactive experiences using digital tools, such as software and technologies. It involves designing websites, apps, graphics, user interfaces, and other digital products to communicate effectively and engage users. Good digital design focuses on usability, aesthetics, functionality, and alignment with user needs.
digital imaging (using digital cameras and scanners), sound cards, and analog video-capturing devices sample, compress, and convert analog media into a series of 0s and 1s (digital) signals for processing by a computer
A digital converter converts the analog signals that are received by your TV to digital signals. Most TV providers only offer digital TV these days, so you only need it if you're still using analog.
The majority of modern computing devices are digital. That means they work by using many on and off type electrical signals. Analog computers work by using vary ranges of constantly-changing signals in real-time without converting them to digital sequences first.