home *** CD-ROM | disk | FTP | other *** search
Text File | 1992-05-20 | 16.9 KB | 371 lines | [TEXT/NISI] |
- TidBITS#55/08-Apr-91
- ====================
-
- Copyright 1990-1992 Adam & Tonya Engst. Non-profit, non-commercial
- publications may reprint articles if full credit is given. Other
- publications please contact us. We do not guarantee the accuracy
- of articles. Publication, product, and company names may be
- registered trademarks of their companies. Disk subscriptions and
- back issues are available.
-
- For more information send electronic mail to info@tidbits.uucp or
- Internet: ace@tidbits.uucp -- CIS: 72511,306 -- AOL: Adam Engst
- TidBITS -- 9301 Avondale Rd. NE Q1096 -- Redmond, WA 98052 USA
- -----------------------------------------------------------------
-
- Topics:
- MailBITS/15-Apr-91
- TechnoBITS/15-Apr-91
- The LC's Hidden Secret
- GigaGigaROM
- El Cheapo Modem
- Reviews/15-Apr-91
-
-
- MailBITS/15-Apr-91
- ------------------
- Michael Hart of Project Gutenberg (a project to provide free
- electronic texts to the world) writes:
-
- "Are you an April fool if you believe:
- 1. Hard disk storage can be bought for $.25 per megabyte.
- 2. The same drives can be used on DOS, MAC and UNIX machines.
- 3. 9600 baud modems are available at $169.
- 4. IBM spelled out the letters IBM with individual xenon
- atoms.
- 5. AT&T did theirs with one atom eight years earlier.
- 6. The AT&T people used IBM-invented equipment.
- 7. The first Project Gutenberg text was net posted 20 years
- ago.
- 8. 10,000 ASCII etexts will be posted by the end of year 2001.
- 9. The storage space, machine, and drives already fit on a
- desktop."
-
- Robert Minich muses on the subject of the Apple/Microsoft suit,
- "I'm no lawyer (!) but I think the title [of our article in
- TidBITS#47] should have been "Apple 0.5, MS 0.5, The Rest Of Us
- 1.0" as I felt what the judge ruled included these major items: 1)
- Apple does have a basis to protect the Mac OS and GUI 2) "Original
- work" in copyright law is apparently best translated as being
- easily distinguishable. More subtle implications seem apparent to
- me, though they may seem arbitrary to you. The above points seem
- to imply that since the Mac GUI isn't a copy of Star/Smalltalk, MS
- Windows isn't likely to be in too much danger. I wish I could find
- a Star to play with and judge for myself the validity of the
- judge's claim. <sigh> It also seems to me that MS screwed up in
- entering into its original agreement with Apple since it seems
- that they have implicitly accepted Apple's right to the Mac GUI. I
- also found the agreement itself rather interesting in that Apple
- and MS were in a way bedfellows. Is it a fatal attraction?"
-
- Ted Weverka kindly let us know about the real terms for some huge
- numbers.
-
- 10^-12 = pico
- 10^-15 = fempto
- 10^-18 = atto
- and
- 10^12 = tera
- 10^15 = peta
- 10^18 = exa (this is the one we were looking for with megatera
- and gigagiga)
-
- He writes, "We are starting to see more frequent use of peta in
- the sciences. The high power lasers for inertial confinement
- fusion are approaching a megajoule in a nanosecond for a petaWatt.
- These are all I know, and all I believe exist (i.e. there is no
- 10^21 or 10^-21). I found these some years ago (and memorized
- them) in the back of the Hewlett Packard manuals for programming
- the HP9836 in BASIC."
-
- Information from:
- Michael S. Hart -- hart@vmd.cso.uiuc.edu
- Robert Minich -- minich@d.cs.okstate.edu
- Ted Weverka -- weverka@sashimi.Colorado.EDU
-
-
- TechnoBITS/15-Apr-91
- --------------------
- Researchers at Bellcore have created a holographic system for high
- speed data retrieval using an array of 1000 semiconductor lasers
- on a chip to retrieve holographic images stored in a single
- crystal. Unfortunately, the researchers have only retrieved a few
- images - ultimately they hope to get up to 1000 images from a
- crystal. Another company, Microelectronics and Computer
- Technology, is working on a method of storing holographic images
- in crystallite arrays rather than the single crystals used by
- Bellcore. Eventually, the holographic images could be used for
- data storage. While 1000 lasers on a chip is impressive, IBM
- recently developed a two inch chip holding 20,000 lasers. The
- ability to put 20,000 lasers on a chip promises a lot for
- technologies like laser printing, CD-ROM, and fiber optic
- information transmission.
-
- The memory world has two new technologies, one from IBM and one
- from SHRAM. IBM showed the "Lightning" SRAM (static RAM) chip at
- the IEEE conference in February. The chip holds up to 512K of
- information and can send and receive eight billion bits per
- second, a feat achieved by having the chip carry out read and
- write operations simultaneously. SHRAM announced Sheet RAM, which
- is composed of a ferromagnetic layer on top of a neutral
- substrate. A single Hall-effect (no idea what that is, sorry)
- transistor sits on top of the ferromagnetic layer for each memory
- cell, a scheme somewhat similar to core memory, with its magnetic
- donuts on interlaced wires. Sheet RAM resembles core memory in
- that it stores bits by changing magnetic polarity, though of a
- region rather than a discrete donut. Since Sheet RAM is
- nonvolatile and probably relatively easy to produce, it could
- become an excellent form of fast, permanent storage.
-
- Olivetti announced a line of portable PC-clones that are
- distinguished from the rest of pack by removable keyboards and
- built-in touch pads for cursor control. One of the problems with
- laptop and notebook computers is that they can seldom use a mouse.
- Microsoft's BallPoint (which has been well received so far) helps
- to address the problem of graphical input, but it's definitely an
- add-on, in comparison to Olivetti's built-in touch-pads.
-
- I love new input devices, and BioControl Systems of Palo Alto may
- have one of the best so far. It's a device mounted on a headband
- that monitors the electrical field movement of your eyes and moves
- an object on the screen accordingly. BioControl Systems is looking
- for capital to go beyond the current prototype, possibly first
- into video game control, but eventually into mouse-type
- manipulations. It sounds like a wonderful idea, but could play
- havoc with your eyes after a while.
-
- Related articles:
- COMMUNICATION WEEK -- 04-Feb-91, pg. 22
- BYTE -- Jan-91, pg. 20
- BYTE -- Mar-91, pg. 28
- PC WEEK -- 11-Mar-91, Vol. 8, #10, pg. 22
- InfoWorld -- 11-Mar-91, Vol. 13, #10, pg. 24
- BYTE -- Mar-91, pg. 32
-
-
- The LC's Hidden Secret
- ----------------------
- Well of course it's hidden, it's a secret! Apple didn't want to
- admit this for a while, but it's been out long enough that
- something's finally come of it. The new Macintosh LC can drive
- many standard VGA monitors from the PC world with the addition of
- a special cable. Considering that the LC is a low-cost color
- machine, low-cost monitor options are important. Apple addressed
- this with the 12" Apple Color monitor, but that monitor suffers
- from a large pixel size and thus a small amount of information on
- screen. People who've used it say that it's slightly larger than
- the 9" monochrome monitors.
-
- However, you can buy some pretty good VGA monitors these days. The
- truly good ones run about the same amount of money as the
- excellent 13" Apple Color Monitor, but you can find perfectly
- reasonable screens for less if you poke around. You have a better
- chance of finding a good used VGA monitor than you do a used
- Macintosh monitor. It's likely that even a good VGA monitor will
- not have the same clarity and bright colors as a Macintosh monitor
- simply because the Mac and the PC deal with monitors differently
- and many VGA monitors aren't designed for use with the Mac (most
- PC-clone monitors use solid colors for the background color and
- the text color etc., whereas the Mac uses a standard grey color
- for the desktop (though you can change this) and applies spot
- color to selected objects and types of objects).
-
- Apple won't help you avoid buying an Apple monitor, so you'll have
- to find or build your own cable. InfoWorld published a pin-out and
- wiring diagram in its 11-Mar-91 issue on pg 38, so if you're the
- enterprising engineer sort, solder away. Alternately, BMUG (the
- Berkeley Macintosh Users' Group) has a kit for those of you who
- don't like poking through electronics stores to find parts. If you
- are less enthusiastic about solder flux, you have a couple of
- options. NEC will send you a free cable to work with its 2A or 3D
- Multisync monitors (at least the 3D is a nice monitor - I haven't
- seen the 2A). More generally, you can buy a $40 adapter from James
- Engineering, Inc. The MacVGA sits between the Mac and the VGA
- monitor cable.
-
- To reiterate: test any monitor before you commit to buying it
- (though in this case, you may have to buy your cable before buying
- your monitor in order to run the test). Not all VGA monitors will
- work, and the more expensive SuperVGA and UltraVGA monitors will
- not provide better than 640 x 480 resolution.
-
- If Apple would offer the two-floppy drive LC to normal people (as
- far as we know, only educational departments can purchase that
- configuration now), you could assemble a powerful and inexpensive
- LC system with a third party hard drive and a decent VGA monitor.
-
- BMUG Inc. -- 415/549-2684
- James Engineering -- 415/525-7350
- NEC -- 312/237-2264 (number to call for cable)
-
- Related articles:
- MacWEEK -- 02-Apr-91, Vol. 5, #13, pg. 6
- MacWEEK -- 22-Jan-91, Vol. 5, #3, pg. 6
- InfoWorld -- 11-Mar-91, Vol. 13, #10, pg. 38
- InfoWorld -- 28-Jan-91, Vol. 13, #4, pg. 34
-
-
- GigaGigaROM
- -----------
- Well, actually it's only one Giga, but the name of a new CD-ROM
- product from Quantum Leap Technologies reminded me of our recent
- mix up about the prefix for 10^18. The Giga-ROM CD is not
- revolutionary as such, since it is merely a collection of
- shareware and public domain programs, much like the PD-ROM from
- the Boston Computer Society. Giga-ROM includes a huge number of
- files, 11,676 to be precise, and Quantum Leap has compressed all
- of them with Compact Pro from Bill Goodman. Since Compact Pro can
- often compress files to half their original size and a CD-ROM can
- hold about 650 MB, it's not unlikely that the disk contains a full
- gigabyte of files, hence the name. The size makes Giga-ROM the
- largest static collection of shareware and public domain software.
-
- What's more interesting about Giga-ROM than its sheer size is a
- related product, Directories and Menus for the Giga-ROM, that
- allows the disk to be used immediately with a Second Sight BBS.
- The maker of Directories and Menus for the Giga-ROM, DMI Systems,
- sells the disk and its product for a special price of $169. The
- disk alone will list for $199 and the Directories and Menus for
- the Giga-ROM will list for $69, so the bundle is a good deal if
- you are a Second Sight sysop with a little extra money and a
- CD-ROM drive.
-
- The Directories and Menus for the Giga-ROM is just what it sounds
- like, an integrated, pre-built set of 142 Second Sight menus and
- 158 file directories for the Giga-ROM, It's not a trivial task to
- set up these menus and directories, and the concept of setting up
- that many menus and directories is frightening. DMI claims that
- its single-step installation process is easy and takes only about
- 30 minutes. Of course, finding a file in a haystack while
- connected by modem isn't much fun, so DMI includes a completely
- keyword text index that can be used with a runtime version of Pete
- Johnson's Archie, which I assume is an archive manager. For more
- speed, users can download the index and use it locally. If you
- want to use Giga-ROM locally, Quantum Leap includes an ON Location
- index if you happen to use ON Location for disk and file indexing.
-
- I haven't seen this product yet, since neither I nor my local
- Second Sight BBS (the Memory Alpha BBS, kindly run by Mark H.
- Anbinder) have a CD-ROM player. However, the price on CD-ROM
- players is coming down slowly, and eventually it will be
- financially feasible for a small local BBS to have as many files
- available as some commercial online services. Quantum Leap
- guarantees virus-free files, and since they exist on a read-only
- medium, those files will remain virus-free, a guarantee that I
- hope will improve the reputation of BBS's in terms of virus
- contagion. The read-only medium also ensures that the disk will
- require no maintenance, unlike standard hard disk systems. Of
- course, a BBS would need a hard disk to receive new files and to
- make mail possible, so the Giga-ROM won't reduce the current
- amount of maintenance.
-
- A similar product that I haven't heard as much about is the BBS in
- a Box from Wayzata Technology. It includes fewer files than the
- Giga-ROM, only 7000, but includes directories for the Second Sight
- and also the graphical Telefinder BBS.
-
- Quantum Leap Technologies -- 800/762-2877
- DMI Systems -- 514/932-4066
- Wayzata Technology -- 800/735-7321 -- 612/447-7321
-
- Information from:
- Quantum Leap Technologies propaganda
-
- Related articles:
- MacWEEK -- 16-Apr-91, Vol. 5, #14, pg. 20
-
-
- El Cheapo Modem
- ---------------
- Once you've got your Second Sight BBS running the Giga-ROM, you
- might want to upgrade your modem. Of course, all of this assume a
- rich relative recently passed away and left you a ton of money
- (preferably in paper, though I'd rather have a ton of quarters
- than a ton of pennies). Standard 9600 baud v.everything (that's my
- abbreviation for v.22, v.22bis, v.32, v.42, v.42bis, and MNP 1-5,
- though not v.32bis, which is just starting to show up in modems
- now) modems run about $500 on the low end. $500 is an excellent
- price for such a modem, since when talking to another v.everything
- modem, it can quadruple the speed to 38,400 baud (and yes, I do
- know the approximate difference between baud and bits-per-second,
- I prefer using baud since it's easier to say even though the two
- aren't exactly equivalent).
-
- But if a man in a trench coat came up to you in a dark alley and
- said, "Hey. Mac. Wanna buy a 9600 baud modem, cheap? How about a
- measly $169?" What would you say? Considering that you're talking
- to a man in trench coat in a dark alley, you probably wouldn't
- enter into a detailed discussion about whether or not the modem
- supported v.42 bis. You'd probably say nervously, "Sure, sounds
- good," give him the money, and stick to the lighted alleys the
- rest of the way home.
-
- When you arrive home and look at what you've got, it would
- probably be a CompuCom 9600 baud modem that does support MNP 5,
- but not v.32, v.32bis, v.42, or v.42bis. CompuCom is bucking the
- mega-compatible trend (that makes it pico-compatible, I guess), so
- its modem, the SpeedModem Champ, will only work at 2400 baud with
- most other modems, 4800 baud if the other modem supports MNP 5.
- However, CompuCom came up with its own proprietary protocol and
- error checking mechanisms, so if you're talking to another
- SpeedModem Champ, you can hit the same 38,400 baud that the more
- expensive modems can do. Considering the fact that you can buy
- three SpeedModem Champ modems for the price of even the cheapest
- of the v.everything modems, it's a gamble that just might work.
-
- If you are interested in fast communications and know that
- everyone you will be talking to at 9600 baud will also be using a
- SpeedModem Champ, it sounds like a pretty good deal. And if the
- other people don't have SpeedModem Champs, well, 2400 baud with
- MNP 5 isn't too bad and $169 is less than I paid for my 2400 baud
- MNP 5 Practical Peripherals modem a year ago.
-
- Oh, yeah, I should mention that you should never buy modems from
- guys in dark alleys, especially if they're clothed in trench
- coats. The modem you just bought is an internal PC card and won't
- even think about working with a Macintosh. CompuCom is working on
- an external version of the modem that will probably be slightly
- more expensive (external modems always are) and will work with the
- Mac. The nice person I spoke with on the phone assured me that the
- external version should be out late this summer, since she had a
- Mac Plus and wanted one.
-
- CompuCom -- 800/228-6648
-
- Information from:
- CompuCom representative
-
- Related articles:
- InfoWorld -- 01-Apr-91, Vol. 13, #13, pg. 31
-
-
- Reviews/15-Apr-91
- -----------------
-
- * MacWEEK
- Video F/X 1.1, pg. 32
- Personal LaserWriter LS, pg. 32
- Network SuperVisor 1.04, pg. 34
- 1 Shot Worksheet, pg. 35
- American Heritage Dictionary, pg. 36
- Compression Boards, pg. 39
- DoubleUp
- Gold Card
-
- * PC WEEK
- SQL Query Programs, pg. 91
- Graphical Query Language 2.1
- DataPrism 1.1
- ClearAccess 1.2
-
- References:
- MacWEEK -- 09-Apr-91, Vol. 5, #14
- PC WEEK -- 08-Apr-91, Vol. 8, #14
-
-
- ..
-
- This text is encoded in the setext format. Please send email to
- <info@tidbits.uucp> or contact us at one of the above addresses
- to learn how to get more information on the setext format.
-