Last updated by Roedy Green ©1992-1999 Canadian Mind Products.
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 |
~1234567890[] ',.pyfgcrl/= aoeuidhtns- ;qjkxbmwvz
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 |
Most memory sold now-a-days does not have even error detection logic, much less error correction (ECC). When you get an error, the program continues, but with wrong information. This may not be all that important if you are just playing a game, but it could be crucial if you are doing an income tax return. Parity memory is a very simple form of error detection without correction. Because of alpha particle emissions, memory can be expected to make errors every so often, even when it is functioning perfectly.
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 |
![]() |
You are visitor number
. |
![]() |
![]() | |
![]() |
Canadian Mind Products | You can get an updated copy of this page from http://mindprod.com/bgloss.html | The Mining Company's
Focus on Java Best of the Net Award |