Understanding BIOS/POST Essay

The next some pages will consist of two tasks that involve solving riddles with the BIOS (basic input/ tabooturn remains) and how to secure the data processor for viruses. Task unitary asks about a serial of beeps provided by two different BIOS the AMI and the Phoenix. Through the beeps we must figure out what delusion the BIOS are giving us. Task two is all about the fire walls and ways to protect your computer and the different firewalls that protect the entire computer or just that specific piece. The sway or position on self-test is performed by the BIOS on start up. Keywords BIOS, POSTUnderstanding BIOS/POSTThe most crucial component on a motherboard is the BIOS. The BIOS is what makes a computer a functioning and operational piece of equipment instead of a plenty of molded plastic. It preforms basic start-up functions along with running the POST to make undisputable the key components of the computer are performing properly. When it comes to the firewall on the com puter, it protects the operating system from foreign elements that could harm it. In task one, we analyzed of the beeps to find the problem on the BIOS. According to www.bioscentral.com, 6 short beeps on the AMI BIOS, translate to access A20 failure. The keyboard controller IC has failed, which is not allowing Gate A20 to switch the processor to protect mode. In order to fix the problem replace the keyboard controller. When it comes to the Phoenix BIOS the error code message translates first 64KB logic failure. Description is the first draw control logic has failed. Task two as determined by http//home.mcafee.com/advicecenter/ For the sake of simplicity, think of hardware firewalls as specialized network boxes that guide employmentized hardware and parcel.When properly configured, hardware firewalls provide a protective rampart that hides an organizations internal PCs from the outside world. They can also casing one company department (say, finance) from another (say, human resources). In legion(predicate) cases, hardware firewalls are great firmnesss for organizations that want a single credential department umbrella that protects multiple systems. For this very reason, most FORTUNE500 networks contain hardware firewalls in place. So whats the downside? Since they are specialized devices, hardware firewalls tend to be expensive, complicated, difficult to upgrade, and tricky to configure. In other words, they are best reserved for IT managers who are specially trained to install, configure, and monitor such devices. Low-end hardware firewalls, now found in network switches and routers for the home, also choose their limitations. If you take a personal laptop on the road, for instance, your system is no longer protected by the home-based firewall.In contrast to their hardware cousins, bundle firewalls are more ideal for individual users or small businesses that comport dial-up or broadband Internet connections. Instead of using a custom (and o ften expensive) piece of hardware, a software firewall installs on an individuals PC, notebook, or workgroup server. Even if an organization has hardware firewalls in place, its shrewd for individuals to use software firewalls on their own systems. The main reason software firewalls are especially convenient for mobile workers who need digital security when working outside of the corporate network. Thats because the entire security solution is, in essence, a single application running on ones computer. Another major benefit, software firewalls are easily upgraded. Users hardly download patches, fixes, updates, and enhancements from the firewall providers web site, or the provider sends these improvements via the Internet. http//home.mcafee.com/advicecenter/?id=ad_ost_hvsf&ctst=1Referenceshttp//home.mcafee.com/advicecenter/?id=ad_ost_hvsf&ctst=1. www.bioscentral.com