Do the systems always follow the same pattern?
Solution 1:
Yes, all systems follow a timeline that roughly corresponds to the real life schedule of the various consoles and devices.
Below is the full timeline (at the base game speed - this gets stretched out or condensed depending on the game speed setting):
Y1 M1 W1 (Start of Game)
- Govodore G64 made available.
- PC made available.
Y2 M1 W2
- TES released.
Y3 M2 W3
- Master V released.
Y3 M9 W2
- Gameling released.
Y4 M2 W4
- Vena Gear released.
Y4 M6 W2
- Govodore G64 discontinued.
Y5 M2 W4
- Vena Oasis released.
Y5 M12 W4
- Super TES released.
Y6 M6 W2
- TES discontinued.
Y7 M7 W1
- Playsystem released.
Y8 M4 W1
- Vena Gear discontinued.
Y9 M2 W1
- TES 64 released.
Y9 M8 W1
- Super TES discontinued.
Y10 M8 W3
- DreamVast released.
Y10 M11 W1
- Vena Oasis discontinued.
Y11 M3 W4
- Master V discontinued.
Y11 M5 W2
- Playsystem 2 released.
Y11 M12 W4
- MBox released.
Y12 M11 W3
- Playsystem discontinued.
Y12 M12 W1
- Game Sphere released.
Y13 M8 W4
- GS released.
Y14 M1 W4
- DreamVast discontinued.
Y14 M3 W4
- PPS released.
Y14 M4 W2
- Gameling discontinued.
Y15 M2 W3
- Game Sphere discontinued.
Y16 M5 W4
- TES 64 discontinued.
Y16 M8 W4
- MBox 360 released.
Y17 M2 W3
- MBox discontinued.
Y17 M4 W4
- Nuu released.
Y17 M12 W4
- Playsystem 3 released.
Y18 M6 W3
- Playsystem 2 discontinued.
Y18 M9 W1
- GrPhone released.
Y20 M10 W4
- MPad released.
- GrPad released.
Y20 M12 W4
- Wuu released.
Y21 M6 W4
- Nuu discontinued.
Y21 M8 W4
- MBox Next released.
Y22 M2 W3
- MBox 360 discontinued.
Y22 M3 W3
- Playsystem 4 released.
Y22 M9 W3
- Playsystem 3 discontinued.
Y260 M12 W4 (End of Game)
- PC no longer available.
- GS no longer available.
- Wuu no longer available.
- PPS no longer available.
- Playsystem 4 no longer available.
- MPad no longer available.
- MBox Next no longer available.
- GrPhone no longer available.
- GrPad no longer available.
Data taken from the respective wikia pages.
Solution 2:
Yes the consoles follow the same pattern everytime. Most of the consoles in game are influenced by real world consoles. They always follow the destiny of their real world counterparts. Even their timelines are influenced by their relative real world release times.
So console timelines and their success or failure are pretty much fixed.