Unit testing

A unit test is the smallest testable part of an application like functions, classes, procedures, interfaces. Unit testing is a method by which individual units of source code are tested to determine if they are fit for use. Unit tests are basically written and executed by software developers to make sure that code meets its design and requirements and … Read more

Software Testing Levels

Testing levels are basically to identify missing areas and prevent overlap and repetition between the development life cycle phases. In software development life cycle models there are defined phases like requirement gathering and analysis, design, coding or implementation, testing and deployment.  Each phase goes through the testing. Hence there are various levels of testing. The various … Read more

Characteristics OF Analog Signal

These type of electronic signals are time-varying Minimum and maximum values which is either positive or negative. It can be either periodic or non-periodic. Analog Signal works on continuous data. The accuracy of the analog signal is not high when compared to the digital signal. It helps you to measure natural or physical values. Analog … Read more

KEY DIFFERENCES BETWEEN ANALOG AND DIGITAL SIGNALS

An analog signal is a continuous signal whereas Digital signals are time separated signals. Analog signal is denoted by sine waves while It is denoted by square waves Analog signal uses a continuous range of values that help you to represent information on the other hand digital signal uses discrete 0 and 1 to represent … Read more

Signal

A signal is an electromagnetic or electrical current that is used for carrying data from one system or network to another. The signal is a function that conveys information about a phenomenon. In electronics and telecommunications, it refers to any time-varying voltage that is an electromagnetic wave which carries information. A signal can also be … Read more

Self-healing material could make ideal smartphone screen

Researchers from the Korea Institute of Science and Technology have led a project to develop a hard, electronic smartphone display material which can self-heal from cracks and other damage.  Smartphone display repair can often cost so much that many owners decide it isn’t worth paying for and simply dump the phone for an entirely new handset … Read more