Technology
8 min
CrispFacts / Subject index
Technology
What a setting, specification, or security feature actually does—and what it does not establish on its own.
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Technology4 min
Renaming .png to .jpg Does Not Convert an Image
A file extension is a label used by software. Conversion changes the data representation inside the file. -
Technology9 min
Bandwidth, Throughput, and Latency Are Three Different Network Measurements
Separate capacity, achieved data rate, and delay, then interpret round trips, averages, bottlenecks, and simple examples without turning one speed test into a diagnosis. -
Technology4 min
Why Two Homes Can Both Have a Device at 192.168.1.10
Private IPv4 addresses are reused inside separate networks; public reachability and security depend on additional configuration. -
Technology4 min
A Bigger Screen Does Not Necessarily Show More Detail
Compare pixel dimensions, physical size, pixel density, and interface scaling with a worked two-monitor example. -
Technology5 min
A File Hash Describes Bytes, Not the Trustworthiness of a Download
Understand what a cryptographic file hash compares, why names and metadata matter differently, and what a matching digest cannot establish about safety. -
Technology5 min
Firmware, Operating System, and Application Name Different Software Roles
Separate the software that controls a device, the platform managing resources, and the application performing a task, including why update labels can overlap. -
Technology4 min
A ZIP File Can Be Smaller Without Being Private
Distinguish compression, archiving, and encryption, including why a smaller attachment is not automatically protected. -
Technology4 min
Why Free Storage Does Not Mean a Computer Has Free Memory
Separate RAM, persistent storage, and temporary system activity before interpreting a computer’s capacity numbers. -
Technology4 min
HTTPS Protects a Connection; It Does Not Endorse a Seller
Separate transport security, domain identity, seller evidence, and transaction terms before treating an encrypted shop as trustworthy. -
Technology9 min
Encrypted in Transit, at Rest, and End to End Describe Different Boundaries
Locate where data is encrypted, who controls decryption keys, and how endpoints, backups, metadata, and sharing affect the scope of an encryption claim. -
Technology6 min
Pixel Dimensions, File Size, and Print Resolution Describe Different Image Properties
Read image measurements without confusing pixel count, compressed bytes, print scale, or visible detail, using worked resizing and print-size examples.