Saturday, 6 October 2012
MONITOR TESTING GUIDELINES
Locate a monitor; notice the appearance of the monitor. If the cable has a 9-pin connector, it's either Monochrome, CGA, or EGA. If there is a label with 3-colors on it, then it's probably CGA or EGA. If the monitor has the word "Enhanced" on it, it's probably an EGA monitor.
If the cable has a 15-pin connector, it is a VGA monitor.
Plug the monitor into the appropriate test PC and turn on both the monitor and PC.
Use some kind of software to test the monitor's display capability (Checkit, PC Probe, SYSCHK, etc.)
If the screen displays properly, label the monitor and store it in the appropriate place in the lab.
If the monitor does not display correctly, test and make sure that the monitor is attached to the correct video card.
If the monitor is REALLY DEAD, indicate this on the dead monitor log and dispose of the monitor.
If you need assistance, let someone know.
If you're unsure of whether a monitor is OK or not, label the monitor as such and move on.
Stores large quantities of data for use at a later time. Uses a HARD DISK CONTROLLER to connect hard disk to motherboard.
Hard Disk Drive
MFM and RLL drives:
Typically have separate controllers and hard disks. RLL controllers can store up to 30% more data on the same disk than MFM controllers. Uses 34-pin AND 20-pin cables to transmit data.
Have hard disk controller and hard disk in ONE unit; slightly more difficult to install additional hard disks to IDE systems. Uses 40-pin ribbon cable to transmit data.
Uses separate controllers, like MFM & RLL drives, but can transfer data at a much faster rate. SCSI drives are also more expensive. Uses 50-pin or 68-pin cable to transmit data.