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Closed Socket Industries Tech
Notes
I’ve combined some resources,
and updated and corrected some of the details to provide a
good study guide. Don’t just memorize the details, however,
go learn this by tearing open some computers. You’ll thank
yourself later.
Have a technical
question?
Post it on
The
Closed Socket Forum
Know memory addresses— Go here for IRQ’s, I/O’s and
DMA numbers:
http://www.pchell.com/hardware/irqs.shtml
Drive installation ---
When installing a new
IDE drive, you must set the Master/Slave jumper with
regard to other drives on the cable. There can only
be one Master and one slave per cable.
When
installing a new floppy drive, remember that the red
stripe goes towards the power supply in most cases.
Look for an identifier of pin 1, this should always
go towards the power adapter. If the floppy access
light remains constant when the computer is booted,
the cable is backwards. Shut down the system and
reconfigure the cable.
Types and terminology of video displays and their
maximum resolutions :
| Standard |
Description |
Resolution |
No.
colours |
| CGA |
Color
Graphics
Adapter |
640 x 200
160 x 200 |
None
16 |
| EGA |
Enhanced
Graphics
Adapter |
640 x 350
|
16 from 64 |
| VGA |
Video
Graphics
Array |
640 x 480
320 x 200 |
16 from
262,144
256 |
| XGA |
Extended
Graphics Array |
800 x 600
1024 x 768 |
16.7
million
65,536 |
| SXGA |
Super
Extended GA |
1280 x 1024 |
65,536 |
| UXGA |
Ultra XGA |
1600 x 1200 |
65,536 |
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