| 2020 | 2021 | |
| apache | A | arm |
| bind | B | Big Sur |
| CentOS | C | chillin |
| dovecot | D | DKIM |
| E | EV | |
| firefox | F | false |
| GMO | G | |
| height | H | HDMI |
| Interlink | I | IPv6 |
| Jitsi Meet | J | |
| K | ||
| Let’s Encrypt | L | nslookup |
| MakeShop | M | M1 |
| nextcloud | N | |
| onlyoffice | O | ONU |
| proxy | P | php8 |
| Q | ||
| rgba | R | RTX830 |
| SSH | S | Search Console |
| thunderbird | T | Thunderbolt |
| Ubuntu | U | USB3.0 |
| VPN | V | virtualmin |
| webmin | W | webmin |
| X | XAMPP | |
| Y | yum -y | |
| zoom | Z | zone |
10年遠回りした感じ