Self-tutoring about document security: the tutor mentions DAC vs MAC. The following is according to my understanding. In the context of document security, access control means control over who can read and/or change a given document. There are a few …
Self-tutoring about computer science: the tutor mentions some theory about asymmetric encryption. The following is according to my understanding. Asymmetric encryption refers to the situation where, to encrypt plain text, one key is used, but to decrypt it, a different …
Self-tutoring about information security: the tutor mentions the idea of integrity. The following is according to my understanding. Integrity, in terms of information security, means that the information one receives is the same as what was sent. In particular, it …
Self-tutoring about everyday computer skills: the tutor mentions taking a screenshot with Firefox. The following is according to my understanding. Yesterday I needed to send a report, accessed online, to a help desk. In my experience, pictures matter in such …
Self-tutoring about c programming: the tutor mentions quotes versus angle brackets for header files. The following is according to my understanding. In c programming, one might need to include one or more header files that define functions, constants, etc. They …
C programming: include directive: quotes or angle brackets? Read more »
Self-tutoring about data storage: the tutor opens a discussion about flash drive capacity. The following is according to my understanding. I recall floppy disks. As I recall, one could hold around 1MB of data. When I was a kid (meaning …
Home computer use: flash drives, part 1: capacity Read more »
Self-tutoring about fasteners: the tutor mentions self-drilling screws. The following is according to my understanding. Lately, disassembling something, I encountered screws that to me were strange. Rather than a point, they have a specific formation below the threads. It’s somewhat …
Self-tutoring about computer science terms: the tutor mentions one he’s noticed. The following is according to my understanding. When I was a kid, computer ideas were measured in Kilobytes, or KB. A computer might have, back then, 5KB of RAM: …
Self-tutoring about computer science: the tutor mentions one motivation behind the change to 64-bit systems. The following is according to my understanding. I recall hearing about 32-bit computers back in the late 80s. I wasn’t sure what it meant at …
Computer science: one reason they went from 32-bit to 64-bit architecture Read more »
Self-tutoring about cleaning products: the tutor mentions resurrecting some heat-activated microwave wipes. The following is according to my understanding. Going through a cupboard that’s been used for non-specific storage for many years, I encountered a few cleaning products which I’ve …
Household chores: heat-activated microwave wipes Read more »