Both Hubs and Bridges are network connecting devices and both of them broadcast data to every node on a network. Hubs operate at the Physical Layer and they do not perform packet filtering or addressing function; they send the data packets to all the connected devices. Bridges connect various devices in a network.A bridge operates at the data link layer to connect multiple networks. It can read the outmost section of a data packet to tell where the message is going. A bridge can be programmed to reject packets from a particular network, so it can be used to reduce ... Read More

In this post, we will understand the difference between SATA and PATA −PATAIt stands for Parallel Advanced Technology Attachment.It is a 40 pin connector.It is expensive.The speed of data transfer is low.It consumes more power.The size of the cable is big.It doesn’t come with hot swapping feature.External hard drives can’t be used with PATA.SATAIt stands for Serial Advanced Technology Attachment.It is a 7 pin connector.It is cheap.The speed of data transfer is high.It consumes less power.The size of the cable is small.It comes with the hot swapping feature.External hard drives can be used with SATA.Read More

Raster scan and random scan are two of the most popular approaches used to display the pictures and images of objects on the screen. Raster scan is a technique in which a rectangular pattern of the image is captured on screen, whereas random scan is one in which the picture is constructed through an electron beam. Read through this article to find out more about raster scan and random scan and how they are different from each other. What is Rater Scan? In raster scan, the electron beam is swept across the screen, one row at a time from top ... Read More

Both multiprocessors and multicomputers are the types of parallel computing systems. The basic difference between a multiprocessor and a multicomputer is that a multiprocessor is a single computer system containing multiple processors interconnected with the common I/O and memory devices, whereas a multicomputer is a system consists of several autonomous computers connected in a network and each computer has its own I/O and memory devices, and other computing resources. Read through this article to find out more about multiprocessors and multicomputers and how they are different from each other. What is Multiprocessor? A multiprocessor is a data processing system that ... Read More

Both interlaced and progressive scan are types of raster scanning techniques extensively used in analog video systems. The basic difference between interlaced scan and progressive scan is that the interlaced scan employs the scanning of even and odd marked lines of a picture which are displayed consecutively as two isolated fields that are superimposed to show one frame on the screen, while the progressive scan employs a single sweep over the whole picture at a time. In this article, we will discuss the important differences between interlaced and progressive scan. Let's start with some basics of interlaced scan and progressive ... Read More

In this post, we will understand the difference between NC and CNC −NC (Numerical Control)It stands for Numerical Control.The input mechanism is punched tapes and punched cards.The modification in the machine programs can be done by changing the information on punched cards.The operational parameters can’t be changed.There is no memory to store instructions in them.It is less expensive.It requires very less maintenance.It is moderately accurate.The operators using this need to be highly skilled.It is not very flexible.It consumes more time.CNC (Computer Numerical Control)It stands for Computer Numerical Control.The input mechanism is that the program is fed data with the help ... Read More

SOP (Sum of Product) and POS (Product of Sum) are the methods of representing a reduced logic expression. The basic difference between the two is that SOP expresses a Boolean function as a sum (logical OR) of product (logic AND) terms, while POS expresses a logic function as a product (logic AND) of sum (logic OR) terms. Read this article to learn more about SOP and POS and how they are different from each other. What is SOP? Sum of Product (SOP) is a method of representing a logic function by using minterms. The expression of a SOP includes product ... Read More

In this post, we will understand the difference between RGB and CMYK colour schemes −RGB Colour SchemeIt is used with digital works.The primary colours in this scheme are ‘Red’, ‘Green’, and ‘Blue’.It is an additive Type Mixing scheme.The colours of this scheme’s images are more vibrant.It has a wide range of colours in comparison to CMYKThe file formats to work with this colour scheme are JPEG, PNG, and GIF.CMYK Colour SchemeIt is used with print works.The primary colours in this scheme are ‘Cyan’, ‘Magenta’, ‘Yellow’, and ‘Black’.It is a subtractive Type Mixing scheme.The colours of this scheme’s images are less ... Read More

In this post, we will understand the difference between USART and UART modes −USART (Universal Synchronous/Asynchronous Receiver/Transmitter)The half-duplex mode is used.The speed of USART is more in comparison to UART.It uses data signals as well as clock to work.The data is transmitted in the format of blocks.It can work similar to UART.It is more complex in comparison to UART.The receiver doesn’t require to know the baud-pace of the transmitter.This is because it gets information by the master and the clock signal.The data is transmitted at a definite (specific) rate.UART (Universal Asynchronous Receiver/Transmitter)It uses full-duplex mode.Its speed is less in comparison ... Read More

In this post, we will understand the difference between system calls fork and vfork −The ‘fork’ system callIn this system call, the child and parent process have separate memory spaces.The child and parent process are executed simultaneously.This call uses the copy-on-write as alternative.Child process doesn’t have the ability to suspend execution of the parent process in this system call.The page of one process doesn’t get affected by the page of other process.It is more frequently used.No address space is wasted.If the child process alters the page in the address space, it is not visible to the parent process.The ‘vfork’ system ... Read More