Copy Link
Add to Bookmark
Report
Commodore Trivia 16
Not to leave you in the dark for too long, here are the trivia
answers to the previous edition of Commodore Trivia. I am posting the
answers at this time, and will post the scores and winners in a few
days. This time frame is set up to allow time for any discussions on the
correctness of these answers. By this time, the newest edition of
trivia has been posted. I encouarage you to enter it.
This edition of trivia answers has been posted to the USENET newsgroups:
comp.sys.cbm, alt.folklore.computers, and comp.sys.amiga.advocacy. It
ha also been posted to the FIDO Echo CBM. This file is copyright by
Jim Brain. It may be reposted on other networks, provided the file is not
changed (other than typos). This file is public domain. It may be used in
newsletters, magazines, etc., but I always appreciate knowing where it
goes. If you are planning on reposting or otherwise retransmitting this
file, it is best to wait a few days after the date of this post for any
errors to be shaken out.
Please mail any new questions for upcoming trivia (with answers) to my
address.
This edition and previous editions the trivia can be obtained from my
mailserver. Just mail my Internet address with the following in the
subject line (exactly):
FGET: trivia1
This will retrieve the first edition of the trivia. Replace the
number with the edition you want.
Here are the answers to Commodore Trivia Edition #16 for March, 1995
Q $0F0) What size matrix of pixels comprises a character on a PET 2001
computer?
A $0F0) The matrix was 8 by 8.
Q $0F1) How many bytes did the opening screen on a CBM 4016 show as
available for use by BASIC?
A $0F1) 15359 bytes free.
Q $0F2) The character set that produces uppercase letters on unshifted keys
is the ________________ character set.
A $0F2) "standard mode".
Q $0F3) The character set that produces lowercase letters on unshifted keys
is the ________________ character set.
A $0F3) "alternate mode"
Q $0F4) To get to the set mentioned in $F2, what character code would be
printed to the screen?
A $0F4) chr$(142)
Q $0F5) What character code would one print to the screen to invoke the
chararacter set in $F3?
A $0F5) chr$(14)
Q $0F6) If one does LIST 60-100, will line 100 get "listed"?
A $0F6) Yes. The above translates as: LIST 60 through to and including 100.
Q $0F7) The abbreviation for the BASIC 4.0 command "COLLECT" is ________.
A $0F7) coL. "C" "O" "SHIFT-L". For those who are interested, the
COLLECT command is analogous to the VALIDATE operation.
Q $0F8) When you use a subscripted variable in BASIC, how many elements
are created by default if no DIM statement is issued?
A $0F8) 11 elements. Almost everyone who has ever programmed in Commodore
BASIC has seen the "BAD SUBSCRIPT" error when they try to use the
12th element in a un-DIMensioned array.
Q $0F9) How large is the keyboard buffer in CBM computers?
A $0F9) 10 bytes. Since this area could be POKEd to, many boot programs
would poke characters into this buffer to simulate keypresses.
Q $0FA) On the Commodore 1581, how large is a physical sector in bytes?
A $0FA) A physical sector is 512 bytes in length. Internally, the 1581
creates 2 256 "logical" sectors in a physical sector, to maintain
compatibility with older Commodore drives.
Q $0FB) You'll find BASIC 3.5 on the _____________ line of CBM computers.
A $0FB) The X64 series. That includes the Commodore 16, the Commodore 116,
and the Commodore Plus/4.
Q $0FC) On the Commodore 1351 mouse, what registers in the Commodore
computer would the X and Y proportional information be read
from?
A $0FC) Even though you are looking for digital information (how far the
mouse has traveled since the last movement in a particular axis),
the information is read from the "paddle" or potentiometer (POT)
registers. On the C64, the POT registers are part of the SID
chip, and are at 54297 ($D419) for POTX, and 54298 ($D41A) for
POTY.
Q $0FD) What is the maximum size of a sequential file on a 1581 drive?
A $0FD) 802640 bytes.
Q $0FE) What flaw exists in the early Commodore 1670 modems?
A $0FE) When the 1670 modem was first introduced, it powered up in auto-
answer mode, which means it would answer incoming calls after
the phong rang. You could turn this feature off through software
control, but if the power was reset, the modem would answer the
phone. So many people complained to Commodore that CBM revised
the 1670 to include an extra DIP switch that turned this feature
off.
Q $0FF) What is the model number of the first modem for the VIC and C64?
A $0FF) The 1600 manual dial/manual answer 0-300 bps modem. The author
owns one, and used it for many years. To operate, you must use
a phone with a detachable handset cord. You dialed the number
on the phone, waited for the answer, unplugged the handset, and
plugged the cord into the 1600. A switch toggled between using
originate or answer frequencies. The 1600 was manufactured by
Anchor Automation for Commodore. (As an aside, this unit claimed
300 bps, but I never could get 300 to work well. Most of my
telecommunications happened at 150 bps.)
End of Commodore Trivia Edition #16!
Jim Brain
brain@mail.msen.com
602 North Lemen
Fenton, MI 48430
(810) 737-7300 x8528
