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My Notes(Up to Oct '03) My Notes(From Oct '03) |
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Computer |
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Random Notes
Some morsel of computing food for you...
Auto-delete of temporary files
Dial Up Networking – Save Password option grayed out
Internet Explorer 4.0x/5.xx/6.xx
MS FrontPage or FrontPage Express
1) Go To Dos Prompt
2) type c:\debug
3) An underscore _ will be blinking
type "f 0:0 ffff0" without quotes.
4) Voila! Your system has freezed. Congratulations.
Cow: 3:-0 3:-o 3:-O 3:O (O, not zero)
Rose: @};-
Alien: =:) =:-)
Skull: 8-X
Pig :@)
:0) (zero)
<):)
Yahoo Chat other commands
/cls to clear the screen
/help display all help commands
/join roomname to join a room, replace room name with the roomname u wish to join
: text displays text as an emotion
/think text Makes the text post as a thought, e.g. oO (text)
Fun with MS Word 2000
1. Open a new document.
2. Type the following line:
=rand(200,99)
3. Press enter key. Close your eyes exactly for 4.38 seconds.
4. Voila! See what happened.
5. You have not closed your eyes exactly for 4.38 seconds, otherwise some more miraculous things could have happened.
Auto-delete of temporary files
To automatically delete temporary files from your hard drive every
time you restart your computer, simply add the line:
del C:\Windows\Temp\*.tmp > nul
to your Autoexec.bat file. This can be done by locating the
autoexec.bat file in c:\. Open it with notepad and add the line to the
end.
Dial Up Networking – Save Password option grayed out
Many people try to use the Save Password option under Dial-Up
Networking, only to find the box grayed out. Go to support.microsoft.com/support/kb/articles/Q137/3/61.asp
for info on this issue. Also, for those of you whose Save Password box is
available, but doesn't work (that is, the password isn't saved), try: support.microsoft.com/support/kb/articles/Q148/9/25.asp
.
Internet Explorer 4.0x/5.xx/6.xx
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Open an Internet Explorer window.
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Type this command in the URL Address box [command name is case insensitive, but ALL characters after the colon (:) MUST be typed in lower case]:
about:mozilla -
Click the Go button (ONLY IF you have MS IE 5.xx/6.xx) or press Enter.
-
Yes, a
MS FrontPage or FrontPage Express
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Start the FrontPage Explorer.
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Hold down the Shift key.
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Click Help and then click About.
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Click OK.
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Keep holding down the Shift key, click again on Help and click About for the second time.
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Click OK.
-
Keep holding down the Shift key, click again on Help and click About for the third time.
Now you should see the credits screen and hear a song playing.
Then & Now: Hard Disk (source Chip August 1999 Page 72)
| Then (1957) | Now (2002) | |
| Capacity | 5 MB | 80 GB |
| Rate | Not available for sale (Rent US$ 35000 a year) | Street Price:US$ 120 |
| Size | About the size of refrigerator | less than the size of video cassette |
Then & Now: CD Writer
| Then | Now | |
| Speed | 1x | 32x |
| Rate | US $ 1,63,000 | US $ 120 |
* Anti-virus tools are world's second most widely used class of software after an operating system.
Hardware Related - Jumper Settings
Jumper Settings: Hard Disk Drive should always be Primary Master. It can be done through placing jumper in Master Slot. If jumper is placed on 'Cable Select', then Connector at the extreme end (other than the end placed on Motherboard side) is Primary Master. If CD-Writer has to be used, it should not be used as Primary Slave. Rather it should be made either Secondary Master or Secondary Slave.
Birth of Internet ... 1969
Birth of email ... 1971
IRC (Internet Relay Chat) was created a decade ago by Jarkko Oikarinem, a computer buff from Finland. (Chip Aug 1997 Page 167)
Tape in audio cassette can move about 2 inches per second, whereas platters of hard disk can spin at a speed of 3000 inches per second (225 kmph). (Source: Chip Nov 2001 Page 108)
From 4000 to P4
Intel's first microprocessor was developed in 1971 and was called 4004 as it contained 4004 transistors. P4 of yours contains 4.2 crore transistors which runs at 2.53 GHz. Soon processors which run at 10 GHz having 40 crore transistors will be possible. (Courtesy: Chip Jan 2001 page 158)
Kilobyte
The
standard metric prefixes used in the Système International (SI) conventions for
scientific measurement are as follows:
prefix abr decimal binary
yocto- 1000^-8
zepto-
1000^-7
atto-
1000^-6
femto-
f 1000^-5
pico- p
1000^-4
nano- n
1000^-3
micro-
* 1000^-2 * Abbreviation: Greek mu
milli-
m 1000^-1
kilo- k 1000^1 1024^1 ~ 2^10 = 1,024
mega- M
1000^2 1024^2 ~ 2^20 = 1,048,576
giga- G
1000^3 1024^3 ~ 2^30 = 1,073,741,824
tera- T
1000^4 1024^4 ~ 2^40 = 1,099,511,627,776
peta-
1000^5 1024^5 ~ 2^50 = 1,125,899,906,842,624
exa-
1000^6 1024^6 ~ 2^60 = 1,152,921,504,606,846,976
zetta-
1000^7 1024^7 ~ 2^70 = 1,180,591,620,717,411,303,424
yotta-
1000^8 1024^8 ~ 2^80 = 1,208,925,819,614,629,174,706,176
Femto" and "atto" derive not from Greek but from Danish.
The abbreviated forms of these prefixes are common in electronics and physics.
When used with bytes of storage, these prefixes usually denote multiplication by
powers of 1024 = 2^10 (K, M, and G are common in computing). Thus "MB"
stands for megabytes (2^20 bytes). This common practice goes against the edicts
of the BIPM
who deprecate the use of these prefixes for powers of two. The formal SI prefix
for 1000 is lower case "k"; some, including this dictionary, use this
strictly, reserving upper case "K" for multiplication by 1024 (KB is
thus "kilobytes").
Also, in data transfer rates the prefixes stand for powers of ten so, for
example, 28.8 kb/s means 28,800 bits per second.
In speech, the unit is often dropped so one may talk of "a 40K salary"
(40000 dollars) or "2M of disk space" (2*2^20 bytes).
The accepted pronunciation of the initial G of "giga-" was once soft,
/ji'ga/ (like "gigantic"), but now the hard pronunciation, /gi'ga/, is
probably more common. [Is this true of Commonwealth countries?]
Confusing 1000 and 1024 (or other powers of 2 and 10 close in magnitude) - for
example, describing a memory in units of 500K or 524K instead of 512K - is a
sure sign of the marketroid.
For example, 3.5" microfloppies
are often described as storing "1.44 MB". In fact, this is completely
specious. The correct size is 1440 KB = 1440 * 1024 = 1474560 bytes. Alas, this
point is probably lost on the world forever.
In 1993, hacker Morgan Burke proposed, to general approval on Usenet,
the following additional prefixes: groucho (10^-30), harpo (10^-27), harpi
(10^27), grouchi (10^30). This would leave the prefixes zeppo-, gummo-, and
chico- available for future expansion. Sadly, there is little immediate prospect
that Mr. Burke's eminently sensible proposal will be ratified.
(Courtesy: www.dictionary.com)
A small body of determined spirits fired by an unquenchable faith in their mission can alter the course of history.
- Mohandas Karamchand Gandhi
Acknowledgements
Digit Magazine
www.computersoftomorrow.com
www.toejumper.net