Original Xbox
The original Xbox operated on a 733 MHz Intel Pentium III CPU with 64 MB of RAM. The only hard drive option was an 8 GB hard disk. The XBox supported MPEG 2 and HDTV game support with an HDTV cable, and could play DVDs but a remote control was required separate from the controller. It was broadband enabled with a V-Chip so you could have control over the games your children played based on Entertainment Software Rating Board ratings. The original Xbox measured 31 cm wide by 27 cm deep by 10 cm high.
First-Generation Xbox 360
The first generation of the Xbox 360 operates on three symmetrical cores that run at 3.2 GHz each with six hardware threads, two per core and a 1 MB L2 cache. Featuring a custom ATI graphics processor that operates at 500 MHz with 10 MB of embedded DRAM, the Xbox 360 has 512 MB of RAM and 22.4 GB of memory interface bus bandwidth. The hard drive is detachable and originally came at 20 GB. Later you could purchase systems with different hard drives including 256 MB, 60 GB and 120 GB. The Xbox 360 supports HD video game play with the use of a High-Definition Multimedia Interface (HDMI) cable. The system can stand vertically or horizontally, offers four USB ports and allows up to four players to play at once with wired or wireless controllers.
Second-Generation Xbox 360
The second generation of the Xbox 360 is very similar to the original Xbox 360 but is quieter and more stable with no overheating issues, according to Microsoft. It is available in two hard drive sizes, 4 GB and 250 GB, as of November 2010. Both sizes are Kinect ready and support Xbox Live; it is the first console to have 802.11n built in Wi-Fi.
Compared with the original, this console has one additional USB port and an integrated optical audio out port. Similar to the original, you can connect headsets for multiplayer and party voice chat and up to four players can play at one time with wireless or wired controllers.