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Computer Network Articles
Page 51 of 122
What is FDDI in the Computer Network?
FDDI stands for Fiber Distributed Data Interface. It is a collection of ANSI and ISO standards for data transmission on fiber-optic lines in a local area network (LAN) that can extend up to 200 km (124 miles). The FDDI protocol is based on the token ring protocol and provides high-speed data transmission at 100 Mbps. FDDI is generally implemented as a dual token-passing ring topology, suitable for campus networks and building backbones. This dual-ring architecture provides fault tolerance, making it ideal for mission-critical network infrastructure. FDDI Architecture FDDI cabling consists of two fiber rings operating in opposite ...
Read MoreWhat is Serial Transmission?
Serial transmission is a method of data communication where bits are sent one at a time over a single communication channel, as opposed to parallel transmission which sends multiple bits simultaneously over multiple channels. With the importance of speed in data communications, it may seem logical to choose parallel transmission. However, most communication systems use serial mode due to practical advantages. Advantages of Serial Transmission There are two main reasons why serial transmission is preferred over parallel transmission: Cost-effectiveness over long distances − Serial networks require fewer physical wires, making them much less expensive ...
Read MoreWhat is Asynchronous Transmission?
A transmission system is classified as asynchronous if it enables the physical channel to remain idle for arbitrary periods between transmissions. Asynchronous communication is well-suited for applications that generate data randomly, such as a user typing on a keyboard or browsing web pages with unpredictable intervals. The main challenge of asynchronous transmission stems from the lack of coordination between sender and receiver when the channel is idle. Since the receiver cannot predict when new data will arrive, additional synchronization mechanisms are required. How Asynchronous Transmission Works Asynchronous technologies typically require the sender to transmit extra bits before ...
Read MoreWhat is Code Division Multiplexing?
Code Division Multiplexing (CDM) is an advanced multiplexing technique used in cellular telephone systems and satellite communications. The specific version used in cell phones is called Code Division Multiple Access (CDMA). Unlike other multiplexing methods that rely on physical properties like frequency or time, CDM uses a mathematical concept based on orthogonal vector spaces. This allows multiple signals to be combined and separated without interference. How CDM Works In CDM, each sender is assigned a unique binary code called a chip sequence (Ci). These chip sequences are chosen to be orthogonal vectors, meaning the dot product of ...
Read MoreWhat is CIFS in the Computer Network?
CIFS (Common Internet File System) is a network protocol that enables file and printer sharing over a network. It is also known as Server Message Block (SMB) and is commonly used for sharing documents and resources on Local Area Networks (LANs). The protocol allows users to access and manipulate files on remote servers as if they were stored locally. Users can perform standard file operations such as read, write, create, delete, and rename on files located on network servers. CIFS Protocol Operation Client ...
Read MoreWhat is the architecture of Asynchronous Transfer Mode?
Asynchronous Transfer Mode (ATM) is a connection-oriented network technology where sender devices, known as end-points, connect through a User-to-Network Interface (UNI) to network switches. These switches communicate with each other through Network-to-Network Interfaces (NNI). ATM uses a hierarchical approach to organize traffic flow through virtual paths and virtual channels, providing efficient bandwidth utilization and Quality of Service (QoS) guarantees for different types of data transmission. ATM Network Architecture End Point A ATM ...
Read MoreWhat is DIMM in the Computer Network?
DIMM represents the Dual In-Line Memory Module and is a circuit board that manages memory chips in computer systems. It utilizes a 64-bit bus to transfer data to memory, whereas a single in-line memory module (SIMM) only has a 32-bit path. This allows DIMMs to transfer more information at once, making them significantly more efficient. DIMM contains a series of memory known as dynamic random access memory (DRAM), which serves as primary storage - the main memory that directly reads and executes saved instructions or information to the CPU. DIMMs are widely used in modern computers, servers, and workstations ...
Read MoreWhat is NAS in the Computer Network?
NAS stands for Network Attached Storage. It is a dedicated storage device connected to a network that provides file access services to multiple computer systems. NAS devices consist of storage drives and a specialized engine that implements file services, using protocols like NFS (Network File System) or CIFS (Common Internet File System). NAS systems are popular with enterprises and small organizations across many industries as effective, scalable, and cost-efficient storage solutions. They support applications like email systems, accounting databases, payroll processing, video recording and editing, and data logging operations. Network Attached Storage (NAS) Architecture ...
Read MoreWhat is NFS in the Computer Network?
Network File System (NFS) is a distributed file system protocol that allows users to access files and directories located on remote servers as if they were stored locally. Developed by Sun Microsystems in 1984, NFS enables seamless file sharing across networks using a client-server architecture. NFS operates over IP-based networks and is widely supported by Unix-like operating systems including Linux, Solaris, FreeBSD, AIX, and macOS. The protocol allows multiple clients to simultaneously access shared files and directories stored on NFS servers, providing transparent remote file access. NFS Client-Server Architecture ...
Read MoreWhat is NVMe in the Computer Network?
Non-Volatile Memory Express (NVMe) is a high-performance storage access and transport protocol specifically designed for solid-state drives (SSDs) and flash storage. It delivers significantly higher throughput and faster response times compared to traditional storage interfaces like SATA and SAS. NVMe is optimized for modern flash storage, providing a direct communication path between SSDs and host systems through the PCIe (Peripheral Component Interconnect Express) bus. This eliminates the bottleneck that occurs when high-speed flash storage is connected through legacy interfaces originally designed for slower hard disk drives. NVMe vs Traditional Storage Communication ...
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