Essay, Research Paper: Year 2000 Bug 

Computers

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The Millennial sun will first rise over human civilization in the independent
republic of Kiribati, a group of some thirty low lying coral islands in the
Pacific Ocean that straddle the equator and the International Date Line, halfway
between Hawaii and Australia. This long awaited sunrise marks the dawn of the
year 2000, and quite possibly, the onset of unheralded disruptions in life as we
know it in many parts of the globe. Kiribati’s 81,000 Micronesians may observe
nothing different about this dawn; they only received TV in 1989. However, for
those who live in a world that relies on satellites, air, rail and ground
transportation, manufacturing plants, electricity, heat, telephones, or TV, when
the calendar clicks from ’99 to ’00, we will experience a true millennial
shift. As the sun moves westward on January 1, 2000, as the date shifts silently
within millions of computerized systems, we will begin to experience our
computer-dependent world in an entirely new way. We will finally see the extent
of the networked and interdependent processes we have created. At the stroke of
midnight, the new millennium heralds the greatest challenge to modern society
that we have yet to face as a planetary community. I am describing the year 2000
problem, known as Y2K (K signifying 1000.) Nicknamed at first "The
Millennial Bug," increasing sensitivity to the magnitude of the impending
crisis has escalated it to "The Millennial Bomb." The problem begins
as a simple technical error. Large mainframe computers more than ten years old
were not programmed to handle a four digit year. Sitting here now, on the
threshold of the year 2000, it seems incomprehensible that computer programmers
and microchip designers didn't plan for it. But when these billions of lines of
computer code were being written, computer memory was very expensive. Remember
when a computer only had 16 kilobytes of RAM? To save storage space, most
programmers allocated only two digits to a year. 1993 is ‘93’ in data files,
1917 is ’17.’ These two-digit dates exist on millions of files used as input
to millions of applications. Programmers did whatever was required to get a
product up and working; no one even thought about standards. The same thing
happened in the production of microchips as recently as three years ago.
Microprocessors and other integrated circuits are often just sophisticated
calculators that count and do math. They count many things: fractions of
seconds, days, inches, pounds, degrees, lumens, etc. Many chips that had a time
function designed into them were only structured for this century. And when the
date goes from '99 to '00 both they and the legacy software that has not been
fixed will think it is still the 20th century -- not 2000, but 1900 Y2K Date
calculations affect far more millions of systems than those that deal with
inventories, interest rates, or insurance policies. Every major aspect of our
modern infrastructure has systems and equipment that rely on such calculations
to perform their functions. We are dependent on computerized systems that
contain date functions to effectively manage defense, transportation, power
generation, manufacturing, telecommunications, finance, government, education,
healthcare, and more. The list is longer, but the picture is pretty clear. We
have created a world whose efficient functioning in all but the poorest and
remotest areas is dependent on computers. It doesn’t matter whether you
personally use a computer, or that most people around the world don’t even
have telephones. The world’s economic and political infrastructures rely on
computers. And not isolated computers. We have created dense networks of
reliance around the globe. We are networked together for economic and political
purposes. Whatever happens in one part of the network has an impact on other
parts of the network. We have created not only a computer-dependent society,
but, also an interdependent planet. We already have had frequent experiences
with how fragile these systems are, how failure's cascade through a networked
system. While each of these systems relies on millions of lines of code that
detail the required processing, they handle their routines in serial fashion.
Any next step depends on the preceding step. This serial nature makes systems,
no matter their size, vulnerable to even the slightest problem anywhere in the
system. In 1990, ATT’s long distance system experienced repeated failures. At
that time, it took two million lines of computer code to keep the system
operational. But just three lines of faulty code brought down these millions of
lines of code. (6) And these systems are lean; redundancies are eliminated in
the name of efficiency. This leanness also makes the system highly vulnerable.
In May of this year, 90% of all pagers in the U.S. crashed for a day or longer
because of the failure of one satellite. Late in 1997, the Internet could not
deliver email to the appropriate addresses because bad information from there
one and only central source corrupted their servers. (6) I would now like to
describe in greater detail, the extent of Y2K. As a global network of
interrelated consequences, it begins at the center with the technical problem,
legacy computer codes and embedded microchips. For the last thirty years
thousands of programmers have been writing billions of lines of software code
for the computers on which the world's economy and society now depend. Y2K
reporter Ed Meagher describes "old, undocumented code written in over 2500
different computer languages and executed on thousands of different hardware
platforms being controlled by hundreds of different operating systems . . .
[that generate] further complexity in the form of billions of six character date
fields stored in millions of databases that are used in calculations.(1) The
Gartner Group, a computer-industry research group, estimates that globally, 180
billion lines of software code will have to be screened.(3) Peter de Jager notes
that it is not unusual for a company to have more than 100,000,000 lines of
code--the IRS, for instance, has at least eighty million lines. The Social
Security Administration began working on its thirty million lines of code in
1991. After five years of work, in June, 1996, four hundred programmers had
fixed only six million lines. The IRS has 88,000 programs on 80 mainframe
computers to debug. By the end of last year they had cleaned up 2,000 programs.
(6) Capers Jones, head of Software Productivity Research, a firm that tracks
programmer productivity, estimates that finding, fixing and testing all
Y2K-affected software would require over 700,000 person-years.(5) Also at the
center of this technical time bomb are the embedded microprocessors. Their are
somewhat over a billion of these hardware chips located in systems worldwide.
They sustain the world's manufacturing and engineering base. They exist in
traffic lights, elevators, water, gas, and electricity control systems.
They’re in medical equipment and military and navigation systems. America's
air traffic control system is dependent upon them. They’re located in the
track beds of railroad systems and in the satellites that circle the earth.
Global telecommunications are heavily dependent on them. Modern cars contain
about two dozen microprocessors. The average American comes in contact with
seventy microprocessors before noon every day. Many of these chips aren't date
sensitive, but a great number are, and engineers looking at long ago installed
systems don't know for sure which is which. To complicate things further, not
all chips behave the same. "Recent tests have shown that two chips of the
same model installed in two different computers but performing the same function
are not equally sensitive to the year-end problem. One shuts down and the other
doesn't." (6) That is why some companies are junking their computer systems
and spending millions, even hundreds of millions, to replace everything. It at
least ensures that their internal systems work. The global economy is dependent
upon computers both directly and indirectly. Whether it’s your PC at home, the
workstation on a local area network, or the GPS or mobile telephone that you
carry, all are integral parts of larger networks where computers are directly
connected together. Failure in a single component can crash the whole system;
that system could be an automobile, a train, an aircraft, an electric power
plant, a bank, a government agency, a stock exchange, an international telephone
system, the air traffic control system. If every possible date-sensitive
hardware and software bug hasn't been fixed in a larger system, just one
programming glitch or one isolated chip potentially can bring down the whole
thing. Modern business is completely reliant on networks. Companies have
vendors, suppliers, customers, outsourcers (all, of course, managed by
computerized data bases.) For Y2K, these highly networked ways of doing business
creates a terrifying scenario. The networks mean that no one system can protect
itself from Y2K failures by just attending to its own internal systems. General
Motors, which has been working with extraordinary focus and diligence to bring
their manufacturing plants up to Year 2000 compliance, (based on their
assessment that they were facing catastrophe,) has 100,000 suppliers worldwide.
Bringing their internal systems into compliance seems nearly impossible, but
what then do they do, with all those vendors who supply parts? GM experiences
production stoppages whenever one key supplier goes on strike. What is the
potential number of delays and shutdowns possible among 100,000 suppliers? (7)
"The oil and gas industry is highly automated and the task to remediate all
critical systems is enormous," said committee Chairman Robert Bennett,
R-Utah. "It appears they started too late." (8) Congressional auditors
agree that the FAA has made great progress recently, but they still question
whether the agency will really be ready. “That many systems in that many
locations, extremely difficult to do. If FAA can pull it off, great. We hope
they can. I’m not sure they can with the thoroughness of testing we’ll be
looking for,” said Joel Willemssen of the General Accounting Office. (9) The
global air traffic control system will roll over to 2000 all at once, at
midnight, Greenwich Mean Time, on Dec. 31, or at six o’clock in the evening in
New York and three in the afternoon in San Francisco. That’s the time to watch
the skies, and the airports, for disaster and long lines. (10) “Our
assessments suggest that the global community is likely to experience varying
degrees of Y2K-related failures in every sector, in every region and at every
economic level.” “The global picture that is slowly emerging is cause for
concern,” said Jacquelyn Williams-Bridgers, the State Department’s Inspector
General. (11) Excel part of the Microsoft Office Suite's (95, 97 and 2000) found
in over 90% of the worlds computers. Is found to be not able to fully be capable
of dealing with the year 2000 change over. “Most of the (analysis) tools on
the market today do not look for the date function everywhere it can possibly
exist within an Excel workbook,” Falcon said. “It’s not uncommon for users
to create user-defined names that represent formulas and functions. ... The
tools don’t find the date function within the user-defined names.” (12)
Horizon tested the spreadsheet using Viasoft Inc.’s OnMark 2000 Assess
versions 3.0 and 4.0, Symantec Corp.’s Norton 2000, 2000Tools Group Inc.’s
DateSpy Professional, Greenwich Mean Time-UTA’s Check 2000 PC Deluxe, ClickNet
Software Corp.’s ClickNet, and Advanced System Technologies Ltd.’s Datefind-db.
Each compliance-checking tool failed to find the error, although they flagged
several other bugs in the software, according to Falcon. (12) The only analysis
tool that identifies the error, according to Falcon, is IST Development Inc.’s
Year 2000 Analysis Suite. (12) ”[This] is a very specific example of a formula
in a spreadsheet,” said Dan Rickard, technical support manager for OnMark, a
division of Viasoft. “Out of 100 million files, only a minute number might
have this problem.” To put that into perspective, Rickard said a typical
Fortune 500 company has about 100 million files. (12) Think of what happens if
the following areas go down and stay down for months or even years: banks,
railroads, public utilities, telephone lines, military communications, and
financial markets. What about Social Security, and Medicare? If Social Security
and Medicare go down, it will affect millions of people. Yet both programs are
at risk. (13) Experts say only 8 percent of all date-related “millennium
bug” errors will hit on Jan. 1, 2000. Each of the following dates (Table 1)
and (Table 2) marks the beginning of an important fiscal year for government. On
April 1, Canada, Japan and New York State begin their Fiscal Year 2000.
Forty-six states begin Fiscal Year 2000 on July 1. The U.S. government starts
its Fiscal Year 2000 on Oct. 1. For all intents and purposes, these dates are
the real beginning of 2000 for government benefits and programs. And, because
government is the largest consumer of virtually every product and service on
earth, it is a critical date for suppliers and companies that depend on payments
from government. If errors occur in government computers, interfering with the
payment of Social Security, Medicare, Veterans or other benefits, a large and
very influential segment of the population will immediately be in an uproar.
(10) To assess others’ readiness, U.S. diplomats used a standard survey to
collect information on host countries’ Y2K programs, vulnerability to
short-term economic and social turmoil, reliance on technology in key
infrastructure sectors and the status of Y2K corrective efforts. Overall about
half of the 161 countries assessed by U.S. officials were reported to be at
medium to high risk of Y2K-related failures in their telecommunications, energy
and/or transportation sectors. (11) But “the relatively low level of
computerization in key sectors of the developing world may reduce the risk of
prolonged infrastructure failures,” Williams-Bridgers said. (11) Table One
shows the dates that could cause problems with software or hardware. Table Two
shows additional dates for agencies that manage banking information. Date
Explanations: New Year’s Day The first Day/Date/Year event -- Friday, January
1, 1999 -- has passed without major incident in Oregon. (FYI: In a recent
teleconference of US Y2K coordinators, it was reported that only two states
suffered major "hiccups" on 1/1/99 and these were quickly fixed.) Any
software that looks or schedules things in yearly increments should now be
projecting for the year 2000 and not 1900. Century Rollover The final two dates
of the first table are for the century rollover. This Day/Date/Year problem is
often misunderstood. Software that plans ahead or calculates dates into the next
year needs to be able to distinguish 1900 from 2000 and beyond. Further, it is
complicated by the fact that at this turn of century, there is also a leap year.
Only those centuries divisible by 400 experience a leap year day, February 29.
There are reports of some software forgetting that March 1 follows February 29.
The software has created a February 30, 31, and so on. This type of software
needs to have a new date projection calculator made so that "00"
becomes 2000 and not 1900. Even if the software assumes this change, the display
needs to be able to change from showing the "19" for the century to
"20" for the century at the correct time. The other option is to use
four digits for the year. With this, all the size of the files and displays must
be changed to show four digits for the year. End of File Designation The next
trouble area has to do with what was taught as a standard software practice for
decades: the use of 9999 as an "end-of-file" or
"end-of-record" place holder. Any software that looks ahead to
September 9, 1999 and reads the record of 9/9/99 (or, as stored in some
software, 9999) as "end-of-file" will have problems. This software
must be restructured. Table 1 - Planning Dates Table DANGER DATE DEFINITION
Friday, January 1, 1999 First annual plan to look ahead past the rollover date.
Thursday, July 1, 1999 Quarterly plan that includes 9/9/99. Fiscal Year start
date. Wednesday, Sept. 1, 1999 Monthly plan that includes 9/9/99. Thursday,
Sept. 9, 1999 Ninth day of ninth month of 1999. Friday, Oct. 1, 1999 First
quarterly plan to look ahead past rollover date. Wednesday, Dec. 1, 1999 First
monthly plan to look ahead past rollover date. Friday, Dec. 31, 1999 Rollover
date. Saturday, Jan. 1, 2000 Rollover date. Ensure 01/01/00 is a Saturday. *
Monday, Jan. 3, 2000 First business day of 2000. Thursday, Jan 6, 2000 First
possible weekday mistaken for a weekend day. Tuesday, Feb. 29, 2000 Leap Year.
2100, 2200, and 2300 are not leap years. Wednesday, Mar. 1, 2000 Leap Year
rollover for the month of March. Saturday, Apr, 1, 2000 Possible false change to
Daylight Savings Time (DST). Sunday, Apr. 2, 2000 Actual change to DST. Monday,
Apr. 3, 2000 First business day after quarter ends Mar. 31, 2000. Friday, Apr.
14, 2000 Last business day for US 1999 tax transactions. Saturday, Apr. 15, 2000
1999 tax filing deadline for US. Sunday, Apr. 16, 2000 First day after 1999 tax
filing deadline. Monday, Apr. 17, 2000 First business day after 1999 tax filing
deadline. Saturday, Oct. 28, 2000 Possible false change back to standard time.
Sunday, Oct. 29, 2000 Actual change back to standard time. Sunday, Dec. 31, 2000
Century rollover. Last day of 20th century. Monday, Jan. 1, 2001 Century
rollover. First day of 21st century. * Hardware and embedded chips rollover on
this date. If the device's data display reads "01-01-00" and knows the
day of the week is Saturday, you do not have a problem. Table Two - Banking
Addendum Table DANGER DATE DEFINITION Friday, Jan. 7, 2000 First weekly payday.
Friday, Jan. 14, 2000 First semi-monthly payday. Monday, Jan. 31, 2000 First
Monthly payday. First Monthly close. Friday, Mar. 31, 2000 First Quarter close.
Friday, Dec. 29, 2000 First Yearly close. Sunday, June 30, 2002 Last day
European national currencies are acceptable. Monday, July 1, 2002 First day of
Euro-only transactions in the EMU. Table Two above shows dates that are critical
to accounting or banking software. If a computer assumes "00" is 1900
instead of the year 2000, the day of the week will be off for such things as
weekly, semi-monthly and monthly paydays, etc. The last two days of this table
are reminder dates for organizations such as banks that may be trading in
various European currencies. It could be very costly if traders miscalculate the
last day of that type of trading. (14)

Bibliography
1). The Complexity Factor" by Ed Meagher, (09.03.99), 05:19 p.m.
www.year2000.com/archive/complexity.html 2). Y2K could disrupt Medicare
benefits, (08.23.99), 01:26 a.m. GAO report finds Medicare systems ‘severely
behind’ ASSOCIATED PRESS http://www.msnbc.com/news/200532.asp 3).
"Industry Wakes Up to the Year 2000 Menace," FORTUNE, April 27, 1998
4). The Washington Post, "If Computer Geeks Desert, IRS Codes Will Be
ciphers," December 24, 1997 5). Business Week, March 2, 1998 6).
(08.28.99), 09:56 p.m. http://www.wbn.com/y2ktimebomb/index.htm 7). See dates
(08-10-99) (06-30-98)… (09.05.99), 11:09 p.m. http://www.Yardeni.com/y2kreporter.html
8). U.S. Senate Panel Worried On Oil Sector Y2K Readiness. (08.17.99), 07:19
p.m. (05.24.99), Folsom, Robert, Dow Jones Newswires. http://www.deja.com/getdoc.xp?AN=481604486
9). Fear of flying increases as Y2K nears. (08.17.99), 08:40 p.m. By Bob Hager,
NBC News correspondent http://www.msnbc.com/news/250247.asp 10). Rolling
thunder: Fits and starts: When bug will strike. (08.28.99), 08:59 a.m. Mitch
Ratcliffe, ZDNN http://www.msnbc.com/news/MILLBUGBIGPIC_Front.asp 11). Y2K
glitch likely to disrupt trade. (08.25.99), 03:34 a.m. REUTERS http://www.msnbc.com/news/292367.asp
http://www.msnbc.com/news/TECHY2K_Front.asp 12). Excel may not calculate Y2K,
(08.24.99), 3:20 a.m. Grant Du Bois, PC Week, ZDNN http://www.msnbc.com/news/TECHY2K_Front.asp
13). The Year the Earth Stands Still, (09.06.1999), 2:19 p.m. http://garynorth.com/
14). Dangerous Date Categories, (08.23.99), 02:23 a.m. Statewide Year 2000
Project, (05.10.99) http://y2k.das.state.or.us/danger.htm
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