CD-ROM and Magnetic disks are the types of permanent (non-volatile) storage media used in computers and many other digital devices to store data and information in digital form. In this article, we will discuss the important differences between CD-ROM and magnetic disks. The most fundamental difference between CD-ROM and magnetic ... Read More

In data communication, modulation is a process of changing the characteristics of a data carrier signal so that it can travel the desired distance for data transmission. Modulation is a necessary process in communication systems to increase the reliability of data communication. In the modulation process, an additional signal, called ... Read More

In electronics, a device that coverts energy from one form to some other form is known as a transducer. For example, a loudspeaker converts electrical energy into sound, hence it is a transducer. Another common examples of transducers include microphone, thermometer, pressure sensor, antenna and other position sensors, etc. Based ... Read More

ASCII and UNICODE are the two most extensively used character encoding schemes in computer systems. The most basic difference between ASCII and UNICODE is that ASCII is used to represent text in form of symbols, numbers, and character, whereas UNICODE is used to exchange, process, and store text data in ... Read More

Operating Systems are a type of system software that make the hardware functional and create the interface between the user and machine. Several types of operating systems available such as batch operating system, multiprocessing operating system, multiprogramming operating system, distributed operating system, etc. Batch Operating System The type of computer ... Read More

In computer systems, disk scheduling is required for smooth operation of the system. Disk scheduling is done by the operating system of the computer, in which it schedules I/O requests arriving on the disk. Therefore, disk scheduling is also called as I/O scheduling. In computer systems, disk scheduling or I/O ... Read More

What is C-LOOK Disc Scheduling Algorithm? In operating systems, C-LOOK or Circular-LOOK is a type of disk scheduling algorithm which is used to increase the efficiency of accessing data on a disk. C-LOOK algorithm is basically an improved version of the LOOK disc scheduling algorithm. The main purpose of designing ... Read More

What is Buffering in OS? In operating systems, buffering is a technique which is used to enhance the performance of I/O operations of the system. Basically, buffering in operating system is a method of storing data in a buffer or cache temporarily, this buffered data then can be accessed more ... Read More

What is Booting? Booting is a process of starting a computer or computer like device such as a smartphone, etc. Therefore, booting of a computing device start when we press the power button of the device, it makes the computer or the device ready for use. Actually, when a computer ... Read More

When a computer or any other computing device is in the powerless state, its operating system remains stored in the secondary storage like Hard Disk or SSD. But, when the computer is started, the operating system must be present in the main memory or RAM of the system. When a ... Read More