Data Compression refers to a technique that allows a large file to be reduced to a smaller-size. It also allows decompressing the compressed file back into its original form.Lossy compression restores the large file to its original form with some level of loss in data which can be considered negligible, while lossless compression restores the compressed file to its original form without any loss of data.Read through this article to find out more about Lossy and Lossless compression techniques and how they are different from each other.What is Lossy Compression?Lossy compression is a type of data encoding and compression that ... Read More

In the context of computer systems, a program or task in execution is called a process. In modern computers, several types of processes are used. The process of selecting one process from a bunch of processes and assigning it to the processor for execution is referred to as scheduling. The component of the system that accomplish this task is called a scheduler. There are two main types of schedulers, namely, Long−Term Scheduler and Short−Term Scheduler. In this article, we will discuss the important differences between long−term scheduler and short−term scheduler. But before that, let's start with some basics of long−term ... Read More

Digital as well as Analog Systems, both are used to transmit signals from one place to another like audio/video. Digital systems use binary format as 0 and 1, whereas analog systems use electronic pulses with varying magnitude to send data. Read through this article to find out more about digital and analog systems and how they are different from each other. What is a Digital System? A system of components like a computer which uses discrete time signals to operate is called a digital system. Digital systems uses such signals that have square shaped waveforms. Digital systems first accept the ... Read More

A cluster computer refers to a network of same type of computers whose target is to work as one collaborative unit. Such a network is used when a resource-hungry task requires high-computing power or memory. Two or more same types of computers are clubbed together to make a cluster and perform the task.Grid computing refers to a network of same or different types of computers whose target is to provide an environment where a task can be performed by multiple computers together on need basis. Each computer can work independently as well.Read through this article to find out more about ... Read More

In a computer system, a port provides an interface to connect a peripheral device to the computer system. Thus, ports in the computer hardware are the jacks or sockets through which the peripheral devices are attached to the computer system. These ports are standardized for each purpose. There are several types of ports available in the computer system such as USB ports, Ethernet ports, display ports, serial ports, parallel ports, etc. Through these ports, we connect different hardware devices such as monitor, keyboard, mouse, etc. to the computer. Read through this article to find out more about Serial ... Read More

GIF and PNG are types of image formats to store images. Both GIF and PNG are pixelbased image formats. Both use lossless compression algorithms and support transparency. GIF images support animation as well. Read this article to find out more about GIF and PNG formats and how they are different from each other. Let's start with a brief overview of these two image formats. What is GIF? GIF stands for Graphical Interchange Format. GIF is an image file format that uses lossless compression algorithm. Therefore, the GIF images are of high quality, but a GIF image supports only 256 colors. ... Read More

Both operating system and Kernel are types of system software. The basic difference between the two is that an operating system is a system software that acts as the interface between the users and the machine, while a kernel is a part of the operating system that converts user commands into machine language. Read through this article to find out more about operating systems and kernels and how they are different from each other. What is an Operating System? Operating System manages a computer and acts as an interface between user and computer. Operating system is the first program that ... Read More

JPEG and GIF are types of image formats. JPEG uses lossy compression algorithm where the image may lose some of its data, whereas GIF uses lossless compression algorithm where there is no data loss. GIF images support animation and transparency. Read this tutorial to find out more about JPEG and GIF image formats and how they are different from each other. What is JPEG? JPEG stands for Joint Photographic Experts Group. JPEG is a raster image format. It uses the ".jpg" or ".jpeg" file extension. It uses a type of lossy compression to reduce file size, which means that some ... Read More

Both OCR and MICR are types input devices that use character recognition technologies to convert printed data into digital signals that can be processed by a computer. The most basic difference between an OCR and an MICR is that an OCR (Optical Character Recognition/Reader) uses optical effects for character recognition, while an MICR (Magnetic Ink Character Recognition/Reader) uses magnetic effects for character recognition. Read this article to find out more about OCR and MICR and how they are different from each other. What is OCR? OCR, short for Optical Character Recognition, is a technology to convert scanned documents into ... Read More

The primary difference between holography and photography is that holography is a technology used to create three-dimensional (3D) images of an object, whereas photography is one that creates two-dimensional (2D) images of a three-dimensional object. Read this tutorial to find out more about Holography and Photography and how they are different from each other. What is Holography? Holography is a technique to generate 3-dimensional images using interference and diffraction of light. It uses a coherent and monochromatic source of light. A hologram is needed to regenerate an image. In other words, holography can be defined as the process of wave ... Read More