Bellevue BSIT Posting - HH

Computers are amazing machines. They can crunch thousands and millions of data points in a few seconds. Government officials can share vast amounts of intelligence and gamers are able to play complex and visually stunning video games. Unfortunately, computer systems occasionally run into errors that cause problems and bring the system to a halt. Those issues can be caused by malfunctioning hardware and software. Hardware malfunctions occur while installing new hardware, improper re-installation after maintenance, and over-working hardware (overclocking). Fixing a hardware malfunction may be as simple as removing the hardware, cleaning it, and reinstalling. Other times, the hardware must be replaced to resolve an issue. Conversely, the software or driver might be faulty if the hardware was replaced and it still does not function. software errors can be caused by erroneous code, a bad device driver, or missing device driver. Software and driver errors may occur at any point. They c...

Not all users need enterprise level security, although, controlling your data is important. There are numerous options that will improve single-user and multi-user security. First option is to create user accounts and set appropriate permissions. A user account will improve system security by allowing an administrator to manage account access and restrictions. The user account can be limited to certain files, settings, and functions unless the user has the administrator password. The administrator can also manage file permissions by accessing the properties of specific files or a parent file and managing the permissions under the Security tab. Second option, the user can encrypt data. Basic data encryption, of some internal devices, is available on Windows 10 Home. Although, Windows 10 Pro will unlock additional capabilities with BitLocker. Additionally, the administrator can restrict applications. For Windows 10 Enterprise and Windows Education, the AppLocker can limit certain appli...

Repairing a computer start-up problem can be a simple issue to fix. On the other hand, it could require intensive troubleshooting of hardware and software. Removable media, hardware connections, and software changes are among the culprits. Various issues could cause the boot process to lockup. Many times, the problem will be a simple to fix. Hard drive free space, too many start-up programs, incomplete software updates, and upgraded hardware are among the culprits. For example, upgrading Windows 7 to Windows 10 could be troublesome. You might get an error message telling you that the computer does not have enough space. Microsoft recommends 20 GB of hard drive space, although, you might not have enough space to allow the new version to be downloaded (and decompressed) while the older software version is moved to an archived folder. Make sure you have a little extra room on the hard drive. You could also run into a problem if your computer attempts to load too many programs during t...

After the power button is pressed, how does the computer know how to start or if it is functioning correctly? On the motherboard, there are several mechanisms. Traditionally, a computer uses Basic Input/Output System (BIOS), Complementary metal–oxide–semiconductor (CMOS), and a Master Boot Record (MBR) to get the end-user to the welcome screen. Currently, a newer version of the BIOS and MBR is available. In simple terms, the BIOS and UEFI are interchangeable and MBR and GPT are interchangeable. The new BIOS is called Unified Extensible Firmware Interface (UEFI) and provides better flexibility than BIOS. The updated MBR is called GUID Partition Table (GPT). It contains a better partition table on the hard drive, which allows larger hard drives to be used as a boot drives. The BIOS is a native software within the motherboard, although, relatively simple. After power on, the BIOS script starts. The BIOS performs a Power-On Self-Test (POST) and communicates with all of the installed hard...

So far, we have the central processing unit (CPU), Random Access Memory (RAM), hard drive, and a few sub-parts such as the memory controller chip (MCC) and Bus (one of the data highways). The CPU is the brain and the RAM contains temporal data that is routinely needed, or expected to be needed, by the CPU. The hard drive is the third-tier component that contains all permanent data. The hard drive cannot keep up with the speed of the CPU so the CPU retrieves data from the RAM through the Bus. The CPU’s process is initiated by the clock wire. Following, the CPU seeks to retrieve information by communicating with the RAM. Assuming the RAM contains the needed information, the CPU uses an address Bus to transmit the location of the data and execution command to the MCC. The MCC interprets the instructions, grabs the data, and returns the data through the Bus back to the CPU for processing. The CPU can then produce a solution for the person in front of the computer screen. Resour...

Last week I watched a video that described the basic parts of a computer and a little about the function of each part. Since that video was published, all of the hardware mentioned has evolved materially and improved in processing capacity. For example, the evolution of processor configuration and data pathways. However, the basic functions are still the same. Power flows into the computer supply which is converted into a 12 volt (or less) power source for the numerous pieces of hardware. Some of the different power connectors include the 20/24 ATX for the motherboard. My computer used the 24 pin version. The CPU is attached directly to the mother board so it does not require external power. For my graphics card, two PCI-E 6 pin connectors are used for power and data is transferred through the PCI-E 2.0 x 16 connections. My HDDs and CD-ROMs use 5 pin SATA power connectors. The data travels to and from the HDDs and CD-ROMs by way of SATA data cables. The two fans in the computer are ...

Hello bloggers, my name is Howard. I am married, have two kids, and a dog. I am in the Air Force and live in Florida. Most of my time off work is spent at my kid's sporting events and on the coastal waters of south Florida. Currently, my knowledge of PCs is lacking compared to professional standards, but I am the family techy. When something doesn't work, I get voluntold to fix it. My knowledge is enough to get me into trouble. I know how to install hardware components such as power supplies, graphics cards, fans, USB expansions, SSDs/HDDs, CD drives and basic router hookup and setup. My graphics card is not working (which is probably from trying to overclock it). Because of that, I am familiar with reinstalling Windows on my PC. I can do basic software manipulations such as putting all non-Windows files on a separate HDD. I would love to buy a NAS, but I have not committed to it yet. My PC maintenance and troubleshooting capabilities are in-line with my basic PC knowledge. I...