Removed

Removed functionality

Things that Sony removed in the lifetime of the console

early development tools had 256bit local memory and 16 ROPs for GPU, later RSX had only 128bit local memory and 8 ROPs.
E3-2005:
- Tri GbLAN, first retail only had one GbLAN port.
- Dual HDMI. first retail only had one HDMI port.
- RSX as 550MHz with GDDR 700MHZ but retail release got RSX downclocked to 500 MHz and its GDDR downclocked to 650MHz.
- 4 front USB ports and 2 back USB ports, this was cut back to 4 and later to 2 USB ports (CECHG and later only have 2 ports) hackable
- Showed the boomerang controller, later to become the sixaxis which dropped vibration feedback
PS3 presented not as gameconsole but a multi computer (later revoked by removing OtherOS)
Folding At Home -> Life With PlayStation
Sony announcing legal actions against parallel import

libMPEG exploit patched
MPEG4 Exploit patched
OtherOS RSX access patched since 2.10
Resistance: Fall of Man exploit
DEX HDD swap trick patched
Blu Ray Java homebrew
SACD (removed CECHG and later)
DSD-to-DTS
(open)Remoteplay
PS2 hardware compatibility (CECHC/E with software and CECHG and later without any PS2 compatibility) ( hackable softwaremode only)
OtherOS (slim and superslim models with any version - as well as any ps3 model with FW > 3.15) ( hackable AsbestOS + OtherOS++)
Memorycardreader (CECHG and later do not have a memorycardreader) hackable
Downgrading (2.x added CoreOS hashes in Syscon, thus preventing downgrades) hackable
Servicemode JIG/PS Downgrade/PSgrade/psfServiceMod (3.55 blocked it , revoked and changed since 3.60)
PSjailbreak/PSgroove/PSfreedom/PL3 (3.42 and higher)
metldr exploit (patched in newer hardware revisions with metldr.2 and hardcoded minver checks)