Software and Network

Software and Network

1. Software

   • Open source Vs Proprietary
   • Custom written Vs off the shelf
     • Custom written
       • Advantages
       • Disadvantages
     • Off the shelf
       • Advantages
       • Disadvantages
   • Utility software
     • Their are four utility softwares, Anti virus, Disk defragmenter, Firewall and Automatic updates.
       • Anti virus
         • An Anti virus is A software that searches through your computer and looks for any viruses that may occure in a scan.
       • Disk defragmenter
         • An Disk defragmenter runs on a schedule so you wont have to remember to run it.
       • Firewall
         • A firewall lets in data that is needed when you download something it lets you sometimes.
       • Automatic updates.
         • A Automatic update, updates all the software that is on your computer so the game or file isnt behind.
   • Operating software
     • A operating system is different kind of functions of an operating system.
       • this includes booting, Memory Management, Loading and Execution, Data security and many more.

2. Networking

   • Network topologys
     • Star network
       • Advantages
         • If one of the systems brake, then the switch will carry on the cycle.
         • You can access each workstation easly
       • Disadvantages
         • More expensive.
         • If the switch brakes then the cycle can't carry on.
       • A star network is the easyier than the others, because my opinion is that you can have it really cheap but very riliable.
     • Bus network
       • Advantages
         • If one of the devices brake or stops working then the cycle or network can carry on.
       • Disadvantages
         • If the main cable brakes which is connected to all of the devices then it can't work no more.
         • Only sends one data packiging at a time and if it brakes then it's like a wall to the data.
       • The bus network is where their is a main cable that runs down the middle and all of the networks are connected to the main cable.
     • Ring network
       • Advantages
         • The node or data goes round the cycle until reaches where it's needed to be.
       • Disadvatages
         • If one device brakes the cycle is broken and can't get the data where it needs to go.
       • A ring network is where all of the servers are in a circle or in a ring and all the nodes or data have to go to each of the devices until reaches where it needs to be.
     • Star network, Bus network, Ring network
       • The best one in my opinion is the star network because it's the eaiest to use, but the most exspensive than the others, more realiable, also the switch or hub can be used to send the data packges to thr right device.