In the state of California, a complaint against a vendor of computer systems can be filed by a purchaser if they believe the vendor has engaged in fraudulent activities, made misrepresentations, breached the contract, or violated the implied warranties of merchantability and fitness. Here is a detailed description of these types of complaints: 1. Fraud and Misrepresentation: If a purchaser believes that the vendor intentionally provided false information or misrepresented facts about the computer system during the sale or transaction, a complaint for fraud and misrepresentation can be pursued. This could involve false claims about the specifications, capabilities, or performance of the computer system, which led the purchaser to make a buying decision based on inaccurate information. 2. Breach of Contract: When a vendor fails to fulfill their obligations as outlined in the contract with the purchaser, a complaint for breach of contract can be filed. This can be due to the vendor failing to deliver the computer system as described in the contract, not meeting specified deadlines, or providing a system with defects or errors that were not addressed in the agreement. 3. Breach of Implied Warranty of Merchantability: Under California law, vendors are obligated to sell computer systems that are fit for their intended purpose. A complaint for breach of implied warranty of merchantability can be filed if the computer system does not meet the reasonable expectations of the purchaser or fails to function as intended. 4. Breach of Implied Warranty of Fitness: Similar to the implied warranty of merchantability, the implied warranty of fitness guarantees that the computer system will be suitable for a specific purpose, especially if it was communicated to the vendor. If the computer system purchased does not meet this specific purpose, a complaint for breach of implied warranty of fitness can be filed. It is important to note that each complaint type mentioned above requires different elements to be proven, and the specific circumstances of the purchase and subsequent issues will impact the nature and scope of the complaint. Seeking legal counsel or guidance can provide crucial assistance in understanding the specific requirements of each claim and maximizing the chances of a successful resolution.