P1 from other devices (e.g. a keyboard) and

P1 Processors and options – The processors main job is to get information from other devices (e.g. a keyboard) and then Change or make new information (e.g. Writing up a Microsoft Word document). The final function of a processor is to return information to a device (e.g. playing a song and getting sound output through speakers.). The processor works by having 3 different caches. L1, L2 and (controlled by all cores) an L3 cache. If we didn’t have a processor we couldn’t access programmes, data or other functions controlled by RAM.         Motherboard – Is a circuit board that links all input/output devices and all the components together. If there was no motherboard the pieces and devices of the computer would never work as there would be nothing to connect everything to. The function of the motherboard is to connect all essential components of the computer together in order for the computer to work.           BIOS – This is the Basic Input Output System. It’s a non-volatile firmware, which is used, on start-up of the computer. The BIOS tests the hardware the computer uses and also controls the data flow throughout the operating system and connected devices, hard drive etc. The BIOS in modern PCs tests the system hardware components, and loads an operating system from the hard disk drive or SSD. When MS-DOS was around, the BIOS provided a hardware abstraction layer for the keyboard, display, and other input/output devices that standardized an interface to application programs and the operating system. More recent operating systems do not use the BIOS after loading, instead accessing the hardware components directly.              PSU – A Power Supply Unit refers to the device, which controls and gives the power to the hardware components inside your PC. It changes the Alternating Current power supply into Direct Current voltages, which can be used to power the hardware components. A good PSU will have a higher wattage. The more powerful your computer is, the more watts it can give to all of the components within the computer      Fan – A?computer fan?is a?fan attached to the case of a computer, which is used for keeping the computer at a cool temperature to prevent overheating. A lot of the time the fan is drawing cool air in and getting rid of the heat inside the case. Sometimes a certain part can over heat so the fan sends cool air over the heat sink in order to keep it cool. Most of the time, new parts that come out require faster and stronger fans in order to keep the temperature regulated and low. If the components aren’t kept cool they will become damaged and start to malfunction. Also they will have a shorter lifespan expectedly. Previously computers could be kept cool by passive cooling but now they need active cooling (fans) in order to prevent an overheating disaster. The BIOS in a computer can control the speed of the fan system built into the computer.    Heat sink – A heat sink is a passive heat exchanger that passes the heat generated by an electronic device or a machine to a fluid medium, most of the time an air or a liquid coolant that is taken away from the device, allowing control of the device’s temperature at the highest levels. In PC’s, heat sinks are used to keep CPU’s or GPU’s at a cool temperature. Heat sinks are used with power transistors where the heat dissipation ability of the part itself is not enough to control its temperature.  Hard drive configuration and controllers A hard drive is a magnetised storage area. The Operating System is stored on the hard drive as well as all of the software programmes, for example, Microsoft Word. The hard drive is a few circular disks on top of each other. A little arm moves over the disks and writes things to these circular plates, and reads them. When a file is saved and a new folder is created, the information is sent to the circular plates. This basically is what a hard drive does. The hard drive controller is typically found on the motherboard where you plug in the hard drives data connection. It controls the passing of data between the CPU and hard drive as well as between the RAM and hard drive. If the hard drive controller on your motherboard does not have the proper connector for your hard drive, an adapter can be used. SATA- SATA is the abbreviated term for ‘Serial Advanced Technology Attachment’. They are used for connecting host bus adapters for example the computer to a mass storage device such as a hard drive. SATA cables are thin and long and includes 7-pins. They are now being used on most new computers. IDE- Stands for ‘Integrated Drive Electronics’. This is a type of connection, which is used to connect an optical drive and hard drive together, as well as connecting them to the motherboard. Since the IDE was discovered its capacity has massively increased from 20MB to 2TB.              EIDE- ‘EIDE’ stands for ‘Enhanced Integrated Drive Electronics’. It makes the computer and the storage driver have a standard electronic communication. It also allows for faster access to the hard drive. Master/slave- The master drives responses to the commands and controls the slave drive. It’s considered as the first drive and the slave drive is referred to as the second drive. As the slave drive controls the other devices.  Output devices An output device is a hardware that displays or outputs data that has been processed or has been stored on the computer. The most common output devices would be monitors, speakers and printers. Audio and video are both outputted from the computer, the printer receives data and then outputs it, giving you printed-paper.        Input devices An input device is a hardware device that sends data to a computer system, letting you control the system. The most commonly used or primary input devices on a computer are the keyboard and mouse but there are loads more devices that are used to input data into the computer.   Cabling Networking Cables are hardware that is used to make a connection between one network device and the other. They are also used to connect more than one device to printers or scanners that are shared. There are three main types of cables, Coaxial Cables, Optical fibre cables and Twisted pair cables. Twisted Pair is often used for RJ-45 cables; this is used within homes and businesses as an Ethernet cable. Twisted pair is often used as structured cabling, which is for bringing subsystems together to make one structured system. In homes it’s commonly used as patch cabling which links the system to the router or another device. Optical fibre cables are made of a glass core with protective layers around it, the layer on the outside is made of PVC or Teflon so that it can prevent interference. Optical fibre cabling is quite a bit more expensive compared to Twisted Pair cabling but can go to a further distance and gives a much higher bandwidth. Coaxial cabling use waves within the cable in the middle of the centre conductor and the shield. The good thing about Coaxial cables is that they can be twisted and bent without any damage (Of course with its limits). They can be stuck to a conductive support and wont cause a current.  Backing Storage Disks are potentially the most reliable but they would need to be updated every five years in order to keep the data safe and not corrupted. Pen drives are great due to the fact they are very portable, load fast, rarely lose data and can be locked with bit locker. Pen drives are very easy to lose and can be corrupted if not safely ejected from the computer. Optical media is another good source of data storage; they are easy to access due to the fact that most machines in this day and age contain a CD slot. They are flimsy so very breakable and if they are scratched it can corrupt the data. Flash memory cards are great as they are more portable than CDs and they can hold more data too. However they are very easy to break or lose, they are quite expensive and can only erase so much before becoming entirely full from previous data.              P2  A hard drive is a magnetised storage area. All the data that is stored on a hard drive can be recovered making it perfect for the event of a catastrophic event. The hard drive is made up of a few circular disks on top of each other. To read and write on a hard drive an arm moves across these disks. If something like a file is created, the information is sent to the disks and that is the premise of a hard drive. A solid-state drive is a storage device that uses microchips as memory to store data in a consistent manner continuously. Solid-state drive technology mainly sends information to hard disk drives, this is known as an electronic interface. SSD’s are perfect for disasters as all data is easily recovered and the chances of something other than a flood destroying it is going to be quite hard due to its size, if it is kept in a safe area it would be fine. Cloud storage – Cloud storage is a way of storing data. The data is placed in something known as a logical pool; the data is sent to a company that has a building or warehouse full of servers, this is where the physical storage is held. The companies make the data easy to access and usually around the building there is security and alarms to keep it safe. Any data can be stored in these servers as long as they don’t go against terms and conditions. Magnetic Tape – Magnetic tape works by magnetisable strips of plastic. Mostly, audio and video data is recorded on the tape, thus the making of audio tape recorders and video tape recorders. A tape drive is used to store computer data on magnetic tape. Unless you are keeping top secret data, magnetic tape wouldn’t be the first choice, it cannot store as much data as modern hard drives or clouds. RAID stands for Redundant Array of Independent Disks. It is the combination of physical disk drives and makes it into one logical storage unit; this is usually done in order to make it more powerful performance wise or to make the data redundant If it were my choice for data storage I would use Cloud, although it is more expensive, it is most safe with all the servers that are well maintained be people who know what they are doing when it comes to computers and servers. They are also well guarded which leaves them more secure than a hard drive. Also if there is a natural disaster in your area, the servers are not going to be affected and even if the catastrophe happens in the server’s area, they are well fortified and have their own back up storages.      P3  There are multiple software’s that are used when it comes to file servers. In this scenario however the most suitable software would be Linux. Linux allows the user full control over their computers. Linux is the best when it comes to applications as it has literally everything application wise it can also handle multiple different applications at once which is perfect for an office that has a group of users at one given time.  The perfect setup for the file server in this office would be a Dual-core CPU, 32GB of RAM, a RAID Controller and a UPS battery in order to keep the file server protected. The computers should be operating with an i5 7600k processor, 8GB of RAM, 500GB hard drive, a 24 inch LCD Monitor. Install Windows 10 Professional, it is the best operating system for an office.  Network sharing is a useful feature that lets materials be shared over an entire network; it can be files, documents, folders or media (This is Audio and Video). Network sharing can take place at more than one level. The main two levels would include the individual system level and the multi system level.  To keep the system maintained, update the operating system and software, use antivirus software and keep it well up to date, make sure the antivirus software is constantly running for maximum virus protection.  Logically a server will have a form of output device or it would not have a reason to exist. It doesn’t have a mouse, keyboard or access to the printer but it does have a network card in it so it can output the results of its programs to a storage device most likely either a hard drive or SSD. If it were had no outside access to it at all it would be running to make heat. Even if it is just a hard disk to store output and something comes along over the network to gather the files, the network card is still an output device. A server might not have any output devices attached to it, but its usefulness would be almost nothing and it would have no purpose.  Integration must be introduced; this is when two or more smaller systems join together to commit a necessary function. Although a lot of accessibility features need some special software tools developed by third parties, a lot have been built into the operating system (most likely Windows 10) of your computer or other kind of device. Here are three different types of accessibility features for people with slight disabilities that you may already have on your computer or device.  Features computer users with eye sight issues or are blind: kinds of features like text-to-speech let users on the computer to hear what’s on the screen instead of having to read it. Other accessibility features, like high-contrast themes and bigger mouse cursors, make it easier for computer users with a restricted or limited sight to view the screen. Accessibility features for deaf or computer users who have really bad hearing: Closed-captioning tries to provide music or sound to deaf users in visual form, if for instance there was a loud bang that would appear as onomatopoeia on screen. Mono sound systems are also great for people who are only partially deaf in one ear, it allows them to hear both the sound coming from the right and the left through one earphone, headphone or speaker. Features for limited-mobility computer users: Keyboard shortcuts are very handy for a lot of people, but they are really helpful to people who would have had difficulty physically using a mouse. For all the people who have a lot of difficulty hitting multiple of the keys at once, sticky keys allow them to press one key at a given moment to activate a shortcut. Operating systems give a software platform where application programs can run. The application programs must be written to run on top of a particular operating system. Your choice of operating system, therefore, determines to a high authority the applications you can run. For PCs, the most popular operating systems are DOS, OS/2, and Windows and Linux Utility software was one of the greatest things to happen to computers, antivirus is an example of this; it can prevent something as dangerous as Ransom Ware entering your computer, which is very important for a business. Application software is a piece of software that is designed to carry out a set of functions to help the user. An example of Application software is Google Chrome, which is a web browser.    P4                                              P5  One type of routine computer maintenance is Disk Cleaning. Over time the hard drive will gather rubbish. This refers to the recycle bin; temporary files and cookies that ruin your hard drive and make your computer go rather slow. In Windows System Tools you can find something called DiskClean. This will help you clean up your PC if it has gathered up a lot of trash in its system. Defrag is another technique that is commonly used to clean up your Desktop Computer, it splits files into fragments and from there they are sent to different locations within the hard drive to find incorrupt full files, this should be done roughly once a month. When looking for ways to extend performance and life of your pc, the most forgotten about kind of maintenance is physical maintenance. Over time, if a pc is used quite a lot however rarely maintained or looked after; the system can weigh down, and in extreme cases, can stop working entirely. Basic physical maintenance can allow your pc to run longer, and faster. The most dangerous and least cared for area place wherever dust and dirt can collect is inside the pc case. An excessive amount of dust or dirt can almost definitely cause slow performance, hardware failure, or perhaps A fire. It’s necessary to clean inside your pc case to keep up smart pc performance. When cleaning the inside of a pc case you will want to use compressed gas. There are two more kinds of preventative maintenances that come to mind, these are: Backing up data – Data has to be the most important part of your pc. Operating systems can be reinstalled if needed and applications as well, but it will be very difficult or absolutely impossible to recreate the original data you had. It is necessary that you always back up all of your most important information and has a plan to recover from a system failure. An attacker could potentially crash a computer’s operating system or data could be corrupted or wiped out by a hardware issue. Computers can be destroyed, stolen or lost in a catastrophe. You should back up your personal or essential work data on a daily basis. This means copying your files over to a protected system that you can access when those files are needed. Malware detection – A virus scan is a type of tool that alerts you when something malicious manages to gain access your computer. The greatest thing about it is that it usually informs you before an issue becomes a disaster. A virus scan is the prevention and repairing your pc is the fix, its better to have the virus scan, prevention is better than a fix. Given the option, majority of people would prefer to catch a problem before it becomes worse in lieu of having to put more money, energy and time into fixing something that shouldn’t have had to be an issue in the first place.  Remedial maintenance is a task done to isolate, identify, and fix a fault so that the failed or broken machine, equipment, or system can be put back into a working condition within the tolerances or limits established for in-service operations. One kind of remedial maintenance is to overwrite data about once a day so that you can make sure you do not suffer data loss or lose projects that you could’ve been working on such as a report for work. Another type of remedial maintenance that could be considered is service outages. This means that all unavailable services that are offline will be brought back online so that the computer user could finish or start what they wanted to do. Another kind of remedial maintenance that could be taken into consideration is quality. If a computer or device is in poor condition or poor quality it could be fixed so that it is in good working condition. A product of preventative maintenance is FTMaintenance. It converts a process of daily tasks associated with work orders, quality and instrumentation management. Another product of preventative maintenance is eWorkOrders Software; it is maintenance management software that uses the cloud to run, giving you tons of space to back up all of your necessary data.                    P6  ? Configuration Test Plan Test No Date Component/ Software Individual identifier Description of Test Expected Result Result/ Discrepancy Retest Result 1. 25/5/17 Computer Client 1 Ping, this will see if we can reach an intended destination. Packets sent Packets sent Packets sent 2. 25/5/17 Computer Client 2 Memory (RAM) Test 16GB Available 16GB Available 12GB Available 3. 3/6/17 Computer Client 3 TestDriver software test Drivers working Drivers working Drivers working 4. 4/6/17 Computer Client 4 Test you can get in to the system using log in Login Successful Login failed Login Successful 5. 6/6/17 Computer Client 5 Test the computer is connected to the software Connected to the network Connected to the network Connected to the network