Sony VGC-RB36G VAIO(R) Desktop PC Intel Pentium 4 Processor 540J 3.20 GHz with 1MB L2 Cache and 800MHz FSB with HT Technology 200GB SATA Hard Drive up to 7200 RPM DVD+R Dual Layer combo drive with DVD+/-R/RW (also reads, records, rewrites CD) Separate DVD-ROM reader drive 1GB PC3200 DDR with 400MHz Bus expandable up to 2GB (provides extra space for working with data intensive multimedia video applications)