For me, understanding computer technology requires constant self-tutoring. The tutor defines the term hypervisor. In my Feb 15 post I explain the idea of a virtual machine. The virtual machine exists atop a hypervisor. hypervisor (noun): a program that allows …

Computer technology: what is a hypervisor? Read more »

Tutoring programming, you might still use Notepad (I do). The tutor shares an observation. Some text editors have the option to display line numbers, so you can see the exact line you’re on. Since compilers often mention problems in code …

Programming: line numbers in Notepad Read more »

For me, lifestyle means constant self-tutoring. The tutor reflects about why he mixes by hand. I don’t use an electric mixer when baking; rather, I do so by hand, typically with a wooden spoon. My wife always uses an electric …

Lifestyle: baking: mixing by hand vs using an electric mixer Read more »

Tutoring web programming, you might encounter a question about Perl. The tutor mentions an observation. Because inline styles use quotes, and then of course printing a string often uses quotes around it, a situation can easily develop in which nested …

Perl programming: printing a string Read more »

Tutoring computer science, character operations with ASCII surface. The tutor mentions Perl’s chr() function. The common English characters one might imagine all have ASCII codes. Tab is 9, Newline is 10, Space is 32, and from 33 to 126 are …

Computer science: Perl programming: chr() function Read more »

Maintaining a home computer requires frequent self-tutoring. The tutor shares. This Windows 7 computer no longer performs the COPY command from the mouse, so I use the command prompt to copy files, etc. Lately I’ve been backing up directories, which …

Windows, home computer use: command prompt file operations: xcopy Read more »

More self-tutoring: the tutor shares a term he discovered today. pomologist (noun): one engaged in pomology, which is the science occupied with fruit itself, and/or its production. Source: modernfarmer.com www.collinsdictionary.com www.w3schools.com Jack of Oracle Tutoring by Jack and Diane, Campbell …

English, botany: what is a pomologist? Read more »

Home computer use, for me, leads to constant self-tutoring. The tutor shares a video about Windows disk management that he was lucky to find. My experience: On an external hard drive, if Windows calls a part of it “unallocated”, you …

Home computer use, computer maintenance, Windows: disk management: how to use unallocated space on a storage device Read more »