If we look around us, we are surrounded by digital things like phones, smart watch, Wi-Fi and many more thing. If we talk about today, today’s time is digital computing. There are definitely some shortcomings in each technology. We experience the benefits of classical computing every day..

About Digital Computing

We’re currently in the fourth generation of computers with the microprocessors after vacuum tubes, transistors and integrated circuits. They were all based on digital computing which is based on the classical phenomenon of electrical circuits being in a single state at a given time, either on or off. Today’s computers use bits, a stream of electrical or optical pulses representing 1s or 0s. Everything from your tweets and e-mails to your iTunes songs and YouTube videos are essentially long strings of these binary digits. We’ve been using computers since early 19th century. A general meaning of the computing is the procedure of calculating or determining something by mathematical or logical methods i.e. The process or act of calculation. Early 17th century, The Latin word computare itself comes from: Latin com, meaning “with”, and Latin putare, meaning “to settle”. Digital word has come out from digit, any of the numerals from 0 to 9 is the digit. A general meaning of the digital is expression of signals or data as series of the digits 0 and 1, typically represented by values of a physical quantity such as voltage or magnetic polarization.

Figure 1: Bit superposition

Digital computing is an activity that is used by digital system or devices to manage, process, and communicate information the data in two discrete value 0 and 1.Each of these discrete values is referred to as a bit and a string of bits that a computer can address individually as a group is a byte. Digital systems manipulate information in discrete chunks. Digital technology is primarily used with new physical communications media, such as satellite and fiber optic transmission. A modem is used to convert the digital information in your computer to analog signals for your phone line and to convert analog phone signals to digital information for your computer.

Figure 2: Digital Computing

Problem with digital computing

Some problems face in digital computing, which are following: 1. ) Vast amounts of data can be collected and stored in digital form by the digital systems. This can be private information concerning individuals or organizations. It can be very difficult to keep this data safe. 2.) Digital system produces more heat, so we use cooling system to maintain heat. Due to this cost increase. 3.) Digital circuits are often delicate and vulnerable, in that case if a single piece of digital data is lost or misinterpreted the meaning of large blocks of related data can completely change. Digital computing manipulates discrete elements of information by means of a binary code. 4.) Quantization error during analog signal sampling. India’s domestic IT spending on hardware, software and services is expected to drop by 4.5 per cent in 2020 impacted by the corona virus pandemic, according to research firm IDC.