• Thumbnail for PC speaker
    A PC speaker is a loudspeaker built into some IBM PC compatible computers. The first IBM Personal Computer, model 5150, employed a standard 2.25 inch magnetic...
    13 KB (1,448 words) - 09:42, 29 April 2024
  • Modern computers utilize a piezoelectric buzzer or a small speaker as the PC speaker. PC speakers are used during Power-on self-test to identify errors during...
    19 KB (2,185 words) - 07:16, 13 September 2024
  • Thumbnail for Computer speakers
    speakers, usually small and of restricted sound quality to conserve space. PC speaker Loudspeaker enclosure Altec Lansing. "Our History". Archived from the...
    3 KB (303 words) - 09:42, 29 April 2024
  • Thumbnail for Sound card
    IBM PC compatible computers were very uncommon until 1988. For the majority IBM PC users, the internal PC speaker was the only way for early PC software...
    50 KB (5,750 words) - 17:30, 5 September 2024
  • Thumbnail for IBM PC–compatible
    IBM PC–compatible refers to a class of computers that are technically similar to the original IBM PC from 1981 (as well as the IBM XT and AT) of computer...
    70 KB (7,844 words) - 15:59, 13 October 2024
  • (PCM)-audio playback on the PC speaker by means of pulse-width modulation (PWM) drive, allowing software control of the loud speaker's amplitude of displacement...
    3 KB (261 words) - 03:50, 16 March 2023
  • Thumbnail for Sinclair PC200
    CGA-compatible games. The limited MDA and CGA graphical capabilities and PC speaker sound output were greatly inferior compared to other home computers of...
    5 KB (362 words) - 12:58, 30 August 2024
  • Thumbnail for IBM Personal Computer
    IBM Personal Computer (redirect from IBM-PC)
    commonly known as the IBM PC) is the first microcomputer released in the IBM PC model line and the basis for the IBM PC compatible de facto standard...
    58 KB (5,992 words) - 17:08, 21 September 2024
  • Thumbnail for IBM Personal Computer XT
    The IBM Personal Computer XT (model 5160, often shortened to PC/XT) is the second computer in the IBM Personal Computer line, released on March 8, 1983...
    25 KB (1,995 words) - 02:54, 5 October 2024
  • Thumbnail for PC-98
    The PC-9800 series (Japanese: PC-9800シリーズ, Hepburn: Pī Shī Kyūsen Happyaku Shirīzu), commonly shortened to PC-98 or 98 (キューハチ, Kyū-hachi), is a lineup...
    73 KB (8,720 words) - 12:51, 9 October 2024
  • Thumbnail for Evelyn Denison, 1st Viscount Ossington
    Denison, 1st Viscount Ossington, PC (27 January 1800 – 7 March 1873) was a British statesman who served as Speaker of the House of Commons from 1857...
    14 KB (763 words) - 08:47, 29 August 2024
  • language. The first version (1.0) had monophonic 4-bit output via the PC speaker, as well as 8-bit output via Covox's Speech Thing (a digital-to-analog...
    4 KB (415 words) - 16:13, 22 September 2024
  • transceiver Buzzer Pager PC speaker, an internal loudspeaker integrated into most IBM PC compatible computers Piezoelectric speaker, used in early microcomputers...
    776 bytes (121 words) - 16:16, 11 April 2024
  • Programmable interval timer (category IBM PC compatibles)
    historically used for dynamic random access memory refreshes and timer 2 for the PC speaker. The LAPIC in newer Intel systems offers a higher-resolution (one microsecond)...
    3 KB (296 words) - 02:24, 18 September 2024
  • Thumbnail for IBM PCjr
    IBM PCjr (redirect from Pc jr)
    (pronounced "PC junior") was a home computer produced and marketed by IBM from March 1984 to May 1985, intended as a lower-cost variant of the IBM PC with hardware...
    66 KB (7,491 words) - 02:46, 7 October 2024
  • Thumbnail for Compaq Portable 486
    two dials underneath the PC-speaker to adjust the brightness of the screen and the volume of the PC-speaker. The PC-speaker in the Compaq Portable 486...
    6 KB (478 words) - 21:59, 23 February 2024
  • Thumbnail for Sopwith (video game)
    Sopwith uses four-color CGA graphics and music and sound effects use the PC speaker. A sequel with the same name, but often referred to as Sopwith 2, was...
    6 KB (633 words) - 04:28, 19 October 2024
  • audible secondary sounds or interference. In 1969 Harman bought the major speaker manufacturer JBL. In 1970 Harman Kardon introduce the CAD5, the world's...
    24 KB (2,472 words) - 09:30, 14 October 2024
  • Thumbnail for PC1512
    PC1512 (redirect from Amstrad PC-1512)
    The Amstrad PC1512 was Amstrad's mostly IBM PC-compatible computer system, launched in 1986, and advertised with prices from £399 plus VAT. The system...
    15 KB (1,676 words) - 03:11, 3 September 2024
  • Thumbnail for PC-8000 series
    The PC-8001 model was also sold in the United States and Canada as the PC-8001A. Original models of the NEC PC-8001B (or sometimes the NEC PC-8000)...
    22 KB (2,685 words) - 17:22, 30 August 2024
  • Thumbnail for Freescale DragonBall
    many built-in functions, like a color and grayscale display controller, PC speaker sound, serial port with UART and IRDA support, UART bootstrap, real time...
    3 KB (294 words) - 10:39, 20 January 2024
  • Thumbnail for POST card
    hardware problems. Most also report POST errors with audible beeps, if a PC speaker is attached. Such motherboards make POST cards less necessary. When these...
    5 KB (690 words) - 17:32, 15 February 2024
  • The PC System Design Guide (also known as the PC-97, PC-98, PC-99, or PC 2001 specification) is a series of hardware design requirements and recommendations...
    9 KB (677 words) - 16:48, 30 September 2024
  • Thumbnail for Computer
    devices. Some examples of output devices are: Computer monitor Printer PC speaker Projector Sound card Video card The control unit (often called a control...
    137 KB (13,903 words) - 18:19, 15 October 2024
  • Thumbnail for Intel 8253
    Intel 8253 (category IBM PC compatibles)
    in early models before the 80386). Timer Channel 2 is assigned to the PC speaker. The Intel 82c54 (c for CMOS logic) variant handles up to 10 MHz clock...
    22 KB (2,645 words) - 15:50, 8 September 2024
  • Thumbnail for Power-on self-test
    Later BIOSes used a sequence of beeps from the motherboard-attached PC speaker (if present and working) to signal error codes. Some vendors developed...
    24 KB (2,366 words) - 10:15, 3 October 2024
  • SimCity (1989 video game) (category NEC PC-9801 games)
    3.0/3.1. It runs in the Windows GDI with new sounds and music, either PC-Speaker type or digital/MIDI type. In 1992, to coincide with other re-releases...
    60 KB (4,905 words) - 03:19, 29 September 2024
  • Thumbnail for Covox Speech Thing
    the sound quality of the Covox plug is far superior compared to the PC speaker; for some time, a self-built variant was an inexpensive way to give old...
    20 KB (2,122 words) - 21:08, 9 September 2024
  • priority. The few games available suffered from slow video hardware, PC speaker sound and limited color palette when compared to its contemporaries. But...
    5 KB (610 words) - 00:36, 6 September 2024
  • Thumbnail for Pulse-width modulation
    crude form of PWM has been used to play back PCM digital sound on the PC speaker, which is driven by only two voltage levels, typically 0 V and 5 V. By...
    29 KB (3,918 words) - 17:41, 13 September 2024