Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watnot!watmath!clyde!cbatt!ucbvax!decvax!decwrl!hplabs!hplabsc!taylor From: taylor@hplabsc.UUCP Newsgroups: mod.comp-soc Subject: Re: What is Computer Literacy? Message-ID: <1595@hplabsc.HP.COM> Date: Mon, 13-Apr-87 19:08:06 EST Article-I.D.: hplabsc.1595 Posted: Mon Apr 13 19:08:06 1987 Date-Received: Wed, 15-Apr-87 04:58:34 EST Sender: taylor@hplabsc.HP.COM Distribution: world Organization: UW-Madison Academic Computer Center Lines: 44 Approved: taylor@hplabs Barbara Zanzig writes: >The first is an absence of fear - of the machine, of the software, of >the technology, of doing something wrong, of blowing things up... I >would add perhaps a sense of adventure, but that may be going too far. >Is this a teachable skill? I'm not sure, but I don't think so. Absence of fear, perhaps plays some part, but only on a basic level. For instance, while I was a computer technician working on high voltage display tubes I had a big fear of getting zapped. This fear was a healthy fear, because it made me make sure I took of my watch and any other jewelry that would attract electrons. The reason why I did get zapped was I was not careful. I was more careful there after. Things like taking the plug from the wall before I put my fingers in a box were also second nature because I was zapped. In software I really do not have the same fear. It can not zap me the same way. The fear thats I do have is losing hours and hours of work. We do back ups nightly on our machines because of this. When working as SU, I also have fears. Fears like I might type in the wrong device name when making a new file system on a disk. This causes me to be very careful, and to review each command line before hitting return. Recently we got one of the new Vaxstation 2000s, and I put Ultrix on it. I found out that the floppy disk drive was called rx. So I wanted to back up some info on it. I said "tar cv /dev/rrx0a". It so happens that DEC, inspite of labeling their hard drives "rd", also label them "rx", so rx0a was really rd0a. Needless to say it destroyed the root file system. I managed to destroy the root file system again when trying to boot from a floppy I created. The floppy had enough on it to load to a certain point. All I wanted to do was to see if it would work. There must have been something in rom that it triggered, and the computer wrote on the hard drive. If we didn't have to borrow a MicroVax to build the system with, I wouldn't really care. I now fear that anything I might do, might destroy the root file system. Thus I will limit the activities I will do on that machine. That is until we get a better way to rebuild the OS. Mark [We're moving a bit off subject here, so can we try to tie it back in with the original discussion, please? -- Dave]