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Computer Engineering Articles
Found 349 articles
Multi-access Channels and Random Access Channels
Multi-access ChannelsMulti-access channels are network channels that allow several transmitters to communicate with a common receiver via a shared channel. These channels are also called multiple access (MAC) channels. The network channel may be a single cable or optical fiber connecting multiple nodes, or a portion of the wireless spectrum.Random Access ChannelsRandom-access channels (RACH) are shared channels used in wireless communication systems to allow mobile devices for call set-up. RACH also handles bursty data transmission. RACH is popularly used by GSM mobiles for transmission over cellular networks.Multiple Access SchemesBoth multi-access channels and random access channels require a scheme to allow ...
Read MoreDifference between Cloud Computing and Traditional Computing
Traditional computing is a type of computing in which local servers are used and a lot of hardware and software has to be installed which is a very expensive process. Remote servers are used in cloud computing which helps in easy access to files, folders, websites, etc. In this article, we will discuss the difference between Traditional Computing and Cloud Computing. What is Cloud Computing? Cloud computing is s system which consists of configurable resources and advanced services which can be easily accessed with the help of the Internet. This leads to lower expenses related to power. Organizations can lower ...
Read More10 Best Computer Science Courses in 2023
In the constantly evolving world of technology, it's imperative to stay updated with the latest developments in computer science. With numerous online courses available, it's challenging to determine which courses are worth taking. In this article, we'll discuss the best computer science courses to take in 2023. Artificial Intelligence (AI) Artificial Intelligence is one of the most in-demand fields in computer science. It is the science of creating intelligent machines that can perform tasks that usually require human intelligence. AI involves the use of algorithms and techniques such as machine learning, natural language processing, and robotics. The following courses are ...
Read MoreNetwork Software
Network software encompasses a broad range of software used for design, implementation, and operation and monitoring of computer networks. Traditional networks were hardware based with software embedded. With the advent of Software – Defined Networking (SDN), software is separated from the hardware thus making it more adaptable to the ever-changing nature of the computer network.Functions of Network SoftwareHelps to set up and install computer networksEnables users to have access to network resources in a seamless mannerAllows administrations to add or remove users from the networkHelps to define locations of data storage and allows users to access that dataHelps administrators and ...
Read MoreClient Server Computing
In client server computing, the clients requests a resource and the server provides that resource. A server may serve multiple clients at the same time while a client is in contact with only one server. Both the client and server usually communicate via a computer network but sometimes they may reside in the same system.An illustration of the client server system is given as follows −Characteristics of Client Server ComputingThe salient points for client server computing are as follows:The client server computing works with a system of request and response. The client sends a request to the server and the ...
Read MoreUser-level threads and Kernel-level threads
A thread is a lightweight process that can be managed independently by a scheduler. It improves the application performance using parallelism.A thread shares information like data segment, code segment files etc. with its peer threads while it contains its own registers, stack, counter etc.The two main types of threads are user-level threads and kernel-level threads. A diagram that demonstrates these is as follows −User - Level ThreadsThe user-level threads are implemented by users and the kernel is not aware of the existence of these threads. It handles them as if they were single-threaded processes. User-level threads are small and much ...
Read MoreWhat is IEEE 802.3?
IEEE 802.3 is a set of standards and protocols that define Ethernet-based networks. Ethernet technologies are primarily used in LANs, though they can also be used in MANs and even WANs. IEEE 802.3 defines the physical layer and the medium access control (MAC) sub-layer of the data link layer for wired Ethernet networks.IEEE 802.3 Popular VersionsThere are a number of versions of IEEE 802.3 protocol. The most popular ones are.IEEE 802.3: This was the original standard given for 10BASE-5. It used a thick single coaxial cable into which a connection can be tapped by drilling into the cable to the ...
Read MoreIEEE 802.3 and Ethernet
Ethernet is a set of technologies and protocols that are used primarily in LANs. It was first standardized in 1980s by IEEE 802.3 standard. IEEE 802.3 defines the physical layer and the medium access control (MAC) sub-layer of the data link layer for wired Ethernet networks. Ethernet is classified into two categories: classic Ethernet and switched Ethernet.Classic Ethernet is the original form of Ethernet that provides data rates between 3 to 10 Mbps. The varieties are commonly referred as 10BASE-X. Here, 10 is the maximum throughput, i.e. 10 Mbps, BASE denoted use of baseband transmission, and X is the type ...
Read MoreDegree of Vertex of a Graph
It is the number of vertices adjacent to a vertex V. Notation − deg(V). In a simple graph with n number of vertices, the degree of any vertices is − deg(v) = n – 1 ∀ v ∈ G A vertex can form an edge with all other vertices except by itself. So the degree of a vertex will be up to the number of vertices in the graph minus 1. This 1 is for the self-vertex as it cannot form a loop by itself. If there is a loop at any of the vertices, then it is not a ...
Read MoreA Protocol Using Go-Back-N
Go-Back-N protocol, also called Go-Back-N Automatic Repeat reQuest, is a data link layer protocol that uses a sliding window method for reliable and sequential delivery of data frames. It is a case of sliding window protocol having to send window size of N and receiving window size of 1.Working PrincipleGo – Back – N ARQ provides for sending multiple frames before receiving the acknowledgment for the first frame. The frames are sequentially numbered and a finite number of frames. The maximum number of frames that can be sent depends upon the size of the sending window. If the acknowledgment of ...
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