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  2. Hard disk drive failure - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive_failure

    A hard disk drive failure occurs when a hard disk drive malfunctions and the stored information cannot be accessed with a properly configured computer. A hard disk failure may occur in the course of normal operation, or due to an external factor such as exposure to fire or water or high magnetic fields , or suffering a sharp impact or ...

  3. HP-19C/-29C - Wikipedia

    en.wikipedia.org/wiki/HP-19C/-29C

    The HP-19C included a small thermal printer, one of the very few hand-held scientific calculators to offer such a feature (HP-91, HP-92 and HP-97 were desktop units and later models like the HP-41C only supported external printers). Due to the printer's power requirements, the 19C used a battery pack of four AA-sized NiCd cells, adding to the ...

  4. Printed circuit board - Wikipedia

    en.wikipedia.org/wiki/Printed_circuit_board

    Not to be confused with Printed electronics. "PC board" redirects here. For the mainboard of personal computers, see Motherboard. "Panelization" redirects here. For the page layout strategy, see N-up. Printed circuit board of a DVD player Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and ...

  5. JetDirect - Wikipedia

    en.wikipedia.org/wiki/Jetdirect

    JetDirect is a line of external print servers formerly sold by Hewlett-Packard (HP). The JetDirect allows computer printers to be directly attached to a local area network . [ 1 ] The "JetDirect" designation covers a range of models from the external 1 and 3 port parallel print servers known as the 300x and 500x, to the internal EIO print ...

  6. Edge connector - Wikipedia

    en.wikipedia.org/wiki/Edge_connector

    An edge connector is the portion of a printed circuit board (PCB) consisting of traces leading to the edge of the board that are intended to plug into a matching socket. The edge connector is a money-saving device because it only requires a single discrete female connector (the male connector is formed out of the edge of the PCB), and they also ...

  7. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    Two 2.5" external USB hard drives Seagate Hard Drive with a controller board to convert SATA to USB, FireWire, and eSATA Current external hard disk drives typically connect via USB-C; earlier models use USB-B (sometimes with using of a pair of ports for better bandwidth) or (rarely) eSATA connection. Variants using USB 2.0 interface generally ...

  8. Automated optical inspection - Wikipedia

    en.wikipedia.org/wiki/Automated_optical_inspection

    An Automated Optical Inspection device. Automated optical inspection (AOI) is an automated visual inspection of printed circuit board (PCB) (or LCD, transistor) manufacture where a camera autonomously scans the device under test for both catastrophic failure (e.g. missing component) and quality defects (e.g. fillet size or shape or component skew).

  9. HP Kittyhawk - Wikipedia

    en.wikipedia.org/wiki/HP_Kittyhawk

    The Hewlett-Packard HP3013/3014, nicknamed Kittyhawk, was a hard disk drive introduced by Hewlett-Packard on June 9, 1992. [1] [2] At the time of its introduction, it was the smallest hard disk drive in the world, being only 1.3-inches in size. The drive was created by a collaboration between Hewlett-Packard, AT&T, and Citizen Watch. [3] [2]