This had been largely a year of recovery for of PC stalwart and Silicon Valley fallen star Hewlett-Packard (HPQ -0.06%). That was until this week, when its shares took it on the chin in the wake of the company's broadly disappointing quarterly earnings report. Of course, any tech investor worth his salt knows the company is in the midst of revamping its business model, a process bound to take years, not months. However, few were truly prepared for just how ugly the numbers ended up being for HP. As should be expected, the market shuddered at the sight and promptly sent its computer maker's shares sharply southward. And now as we survey the wreckage, the question becomes: Has this recent sell-off created any value in HP? In this video, tech and telecom analyst Andrew Tonner runs the numbers and gives his read on whether investors should consider buying on this dip.