Today we spent a lot of time on the subject of the practicum, and how to interact with potential employers, or clients. We practiced calling for an interview, went over resumes, cover letters, and our online personal profiles. The rest of our time today was spent studying hard drives and creating contact lists via group editing sessions on Google drive. I'm not sure where to expand the subjects we talked about today, because the discussions were all about employee readiness, and we covered it better than most would be able to on their own.
In my own research on a topic not related to the practicum, I studied RAM imbalances (how uneven RAM chips can effect a CPU.)
Apparently, there is no real negative downside aside from potentially putting too much stress on the motherboard with a wanton amount of RAM. It is however suggested to put the biggest RAM chip in the primary slot, and organizing them in order of power.
Thursday, September 19, 2013
Monday, September 16, 2013
Flashing BIOS
The process of flashing a bios, using the example of a Dell Optiflex 760 Computer.
1. Download the appropriate BIOS- executable file onto either a computer or run it off of a flash drive.
2. Run the driver on the computer being flashed.
3. The computer will restart and run in BIOS mode, it has now been flashed.
1. Download the appropriate BIOS- executable file onto either a computer or run it off of a flash drive.
2. Run the driver on the computer being flashed.
3. The computer will restart and run in BIOS mode, it has now been flashed.
Thursday, September 12, 2013
Notes #1 9/12/2013
Hard Drive Definitions:
Seek Time - With rotating drives, the seek time measures the time it takes the head assembly on the actuator arm to travel to the track of the disk where the data will be read or written.
Latency - Rotational latency (sometimes called rotational delay or just latency) is the delay waiting for the rotation of the disk to bring the required disk sector under the read-write head.
Data Transfer Time - The data transfer rate of a drive (also called throughput) covers both the internal rate (moving data between the disk surface and the controller on the drive) and the external rate (moving data between the controller on the drive and the host system).
Data Rate - The data transfer speed between a peripheral device and a computer/
Access = Seek + Latency + Overhead
Categories of storage devices and back up media:
-FDD (Floppy Disk Drive)
-HDD (Hard Disk Drive)
-Optical (CD Roms, and other optical disks)
-Removable ( Optical disks, FDD, Punch cards, flash drives, SD cards, SSDs, Cameras, Smart Phones, Punch Cards)
Data is stored in a flux, which is an area that contains a tiny magnetic field.
Stepper Motor - A stepper motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor, as long as the motor is carefully sized to the application.
Voice Coil - A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.
Seek Time - With rotating drives, the seek time measures the time it takes the head assembly on the actuator arm to travel to the track of the disk where the data will be read or written.
Latency - Rotational latency (sometimes called rotational delay or just latency) is the delay waiting for the rotation of the disk to bring the required disk sector under the read-write head.
Data Transfer Time - The data transfer rate of a drive (also called throughput) covers both the internal rate (moving data between the disk surface and the controller on the drive) and the external rate (moving data between the controller on the drive and the host system).
Data Rate - The data transfer speed between a peripheral device and a computer/
Access = Seek + Latency + Overhead
Categories of storage devices and back up media:
-FDD (Floppy Disk Drive)
-HDD (Hard Disk Drive)
-Optical (CD Roms, and other optical disks)
-Removable ( Optical disks, FDD, Punch cards, flash drives, SD cards, SSDs, Cameras, Smart Phones, Punch Cards)
Data is stored in a flux, which is an area that contains a tiny magnetic field.
Stepper Motor - A stepper motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor, as long as the motor is carefully sized to the application.
Voice Coil - A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.
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