Computer Tech Info

Basic of Computer Network What is Computer Network  : It means to connect multiple computer system with each other through physical medium (Cable or Wire) or wireless medium and this architecture is known as “ Computer Network “ In traditional computer networks, single computer machine, workstation, and servers are linked one by one through Ethernet and other cables. But now, advance technologies are released in market in which to make connection between multiple points through wireless technology. Applications of Computer Network There are different types of Computer network applications that are used in internet, and they are divided into in to two segments such as: Pure Network Standalone Network Goals and Applications of Computer Network are 1) Pure Network Application Pure network applications do not depend on the single computer machine because those applications help to make connection over network and to transfer data from one point to other points. Some ex...

  What is STP Cable in Networking ? Definition : Shielded twisted pair (STP) is a especially type of copper telephone and local area network (LAN) wiring used in few business installations, and it appends an outer covering that functions as ground to ordinary twisted pair wiring. Shielded twisted pair introduced by IBM that used firstly in IBM organization only. Shielded twisted pair cable consist a metal foil otherwise braided mesh undercover that mainly encase every pair of insulated conductors. Metal casing helps to improve the quality of wire by securing the penetration of noise otherwise crosstalk. It is commonly used in  computer  networking due to its noise resistance. It has higher price as well as bulkier. It is also called the metal shield that is normally linked to ground so as to decrease the interference of noise. STP is using for both transmissions analog and digital. STP’s bandwidth get supporting by cable depends on thickness of wire and its distance that ...

What is Page Replacement in Operating System Definition : Page replacement policies determine which type of page should be replaced, but these page replacement strategies are only implemented when the requested page does not exist in the primary memory. In a  computer  system, managing memory efficiently is crucial for optimal performance. Here, we will explain all the key page replacement algorithms used in operating systems. Why to Need of Page Replacement Algorithms ? Page Replacement Algorithms play vital role in the  virtual memory  management, because on the base of those Pages replacement policies can be specified that which memory block (page) should be swap out, arising memory space for needed page. Main objective of all  Page replacement policies  are to decrease the maximum number of page faults.  Mobile operating system Page Fault – Page fault means memory error, and page fault occurs when currently programs try to access memory p...

  What is Computer Port ? Definition : A port is a physical docking point that embedded on the computer system to make connection with external or peripheral terminals to the PC. It helps to transfer all data and information from program to PC over the internet, so it has name the “Communication Port“. Computer port acts as interface or a point of connection in between the PC and its external device like as keyboard, mouse , pen-drives, monitor or display unit, printer, speaker, flash drive etc. Mostly, computer ports are available on the rear side of computer, but few ports can present on the front side as based on the computer design. Features of Computer Ports · Multiple external devices can be attaching to the PC with using of ports and cables. ·These slots are presented on the motherboard where user can attach directly external device or through cables. · External devices such as mouse, keyboard, monitor, microphone, speakers, etc; they can be co...