He who controls vocabulary controls thought.
Luigi Wittgenstein
If you come across a term in a computer advertisement not listed here, or any errors or omissions, please send me an email at roedy@mindprod.com.
Please excuse me, I have just started this, so most of the definitions are missing.
Intel chip | bits grabbed
at once |
bits calculated
at once |
---|---|---|
8088 (XT) | 8 | 16 |
8086 | 16 | 16 |
80286 | 16 | 16 |
80386sx | 16 | 32 |
80386dx | 32 | 32 |
80486 | 32 | 32 |
Pentium (586) | 64 | 32 |
Pentium Pro (686) | 64 | 32 |
Pentium II (796) | 64 | 32 |
Channel | width in bits | Use |
---|---|---|
0 | 8 | used to refresh DRAM memory |
1 | 8 | default low DMA for Sound Blaster card, used by a SDLC card |
2 | 8 | diskette drive |
3 | 8 | free, often used by a sound card. |
4 | 8 | cascade, a kludge to hook the two DMA controllers together. |
5 | 16 | default high DMA used by a Sound Blaster card. |
6 | 16 | free, often used by a sound card. |
7 | 16 | free |
Scheme | Capacity | Notes |
---|---|---|
DVD-Video | 4.7 GB | Time-Warner, Disney, MGM/UA etc. backing. |
Divx | n/a | scheme to allow game or video rental |
DVD-R | 4.7 GB | write once |
DVD-RAM | 2.6 GB/side | |
DVD+RW | 3.0 GB/side | compatible with DVD-RAM |
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IRQ | Device | Use |
---|---|---|
0 | Timer | allows computer to say to iself "interrupt me in 30 milliseconds", a sort of reminder alarm clock. |
1 | CON: | keyboard |
2 | cascade | not available. A kludge used hook the two interrupt controllers together. |
3 | COM2: or COM4: | serial port. Often the modem |
4 | COM1: or COM3: | serial port. Often a mouse |
5 | LPT2: | parallel port for the second printer. Printers can work without any IRQ. IRQ5 is often used by sound cards or bus mice. |
6 | A: B: | floppy disk drives |
7 | LPT1: | parallel port for the printer. Printers can work without any IRQ. |
8 | real time clock | time of day |
9 | free | sometimes used by network Ethernet LAN cards |
10 | free | often used by sound cards |
11 | free | often used by SCSI cards |
12 | PS/2 mouse | Mouse with tiny round connector |
13 | numeric coprocessor | for the chip that does scientific calculations and trigonometry. |
14 | C: D: | EIDE hard disk controller for hard disk, CD-ROM. |
15 | E: F: | Secondary EIDE hard disk controller for extra hard disk, CD-ROM. |
port | address | IRQ |
---|---|---|
LPT1: | 3BC | 7 |
LPT2: | 378 | 7 |
LPT3: | 278 | 5 |
type | bits | pins | async
MHz |
sync
MHz |
cable
meters |
raw
throughput Mbytes/sec |
---|---|---|---|---|---|---|
SCSI | 8 | 50 | 4 | 5 | 6 | 5 |
SCSI-2 | 8 | 50 | 8 | 10 | 3 | 10 |
wide SCSI-2 | 16 | 68 | 8 | 10 | 3 | 20 |
differential SCSI-2 | 16 | 68 | 8 | 10 | 25 | 20 |
Fast20 aka Ultra 1 | 16 | 68 | 8 | 20 | 3 | 40 |
Ultra 2 SCSI | 16 | 68 | 8 | 40 | 12 | 80 |
port | address | IRQ |
---|---|---|
COM1: | 3F8 | 4 |
COM2: | 2F8 | 3 |
COM3: | 3E8 | 4 |
COM4: | 2E8 | 3 |
Type | Speed | Where used |
---|---|---|
socket 7 | 100 MHz | Pentium, AMD K6, Cyrix 6x86, Winchip |
socket 8 | 200 MHz | Pentium Pro |
slot 1 | 100 MHz | Pentium II mainstream |
slot 2 | 100 MHz | Pentium II high end |
mobile slot | 100 MHz | Pentium II portables |
slot A | 100 MHz | AMD K7 |
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