This is a Compaq Presario A900 laptop.
Its specification is:
Microprocessor- 1.60 GHz Pentium Dual-Core Mobile Processor T2330
Microprocessor Cache- 1 MB L2 Cache Memory-2048 MB (2 x 1024 MB),
Memory Max- Up to 2GB DDR2,
Video Graphics- Intel Graphics Media Accelerator X3100,
Video Memory- Up to 384 MB,
Hard Drive- 160 GB (5400 rpm),
Multimedia Drive- Super Multi DVD Writer (+/-R +/-RW) with Double Layer support,
Display- 17.0