Derrell's Computer Repair Services is a Black-owned, appointment-based computer repair operation in San Carlos, San Diego, running out of 8541 Tommy Drive near the intersection with Bisby Lake Avenue in the 92119 ZIP. Founded in 2013 by a technician with more than 20 years of hands-on PC experience, DCRS handles hardware and software work across Windows desktops, laptops, iMacs, MacBooks, and iPads. The San Carlos residential base relies on the same Tommy Drive corridor for notary and document services at The Motor Notars, creating a cluster of home-office support within the 92119 grid. The service list runs deep: virus and malware removal, laptop screen and keyboard replacement, hard-drive swaps, graphics-card repair, custom PC builds, Wi-Fi network setup, operating-system installation, data backup and recovery, and password recovery. The operation works on a flat-rate, no-fix-no-pay model — if the technician cannot resolve the issue, there is no charge, a policy that reviews cite repeatedly. DCRS also runs remote-service sessions for software issues that do not require physical access to the machine, plus computer training for clients who want to learn their systems rather than just have them fixed. The shop recycles old electronics, accepting end-of-life devices during repair appointments. San Carlos sits between Cowles Mountain and Lake Murray, and the morning coffee run at Cowles Mountain Coffee anchors the neighborhood's small-business rhythm along the same corridor. Appointments run six days a week with evening availability, a schedule built for clients who cannot break away during standard business hours.