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  2. Macintosh Quadra - Wikipedia

    en.wikipedia.org/wiki/Macintosh_Quadra

    The first computers bearing the Macintosh Quadra name were the Quadra 700 and Quadra 900, both introduced in 1991 with a central processing unit (CPU) speed of 25 MHz.The 700 featured the case dimensions as the Macintosh IIci but vertically oriented as a mini-tower, with a Processor Direct Slot (PDS) expansion slot, while the latter was a newly designed full-tower case with five NuBus ...

  3. Tracktion Waveform - Wikipedia

    en.wikipedia.org/wiki/Tracktion_Waveform

    Waveform, previously known as Tracktion, [1] is a digital audio workstation for recording and editing audio and MIDI. The software is cross-platform, and runs on Apple macOS , Microsoft Windows , and Linux .

  4. ProDigi - Wikipedia

    en.wikipedia.org/wiki/ProDigi

    The section of the X-850 service manual concerning transport adjustments was a verbatim reprint of the corresponding section of the MTR90 service manual. The ProDigi format was extremely popular for recording country music. Specifically, at studios in Nashville, Tennessee, where nearly all of the large recording studios used ProDigi machines.

  5. AN/PRC-163 - Wikipedia

    en.wikipedia.org/wiki/AN/PRC-163

    The AN/PRC-163 Multi-channel Handheld Radio, is a dual-channel tactical handheld radio manufactured by L3Harris Technologies, Inc. for the U.S. military, referred to by the U.S. Army as the Leader Radio. [1]

  6. In-phase and quadrature components - Wikipedia

    en.wikipedia.org/wiki/In-phase_and_quadrature...

    LO is the local oscillator - the carrier sine wave being modulated I(t) and Q(t) are the time-series data for the in-phase and quadrature components. S is the signal . IQ data has extensive use in many signal processing contexts, including for radio modulation, software-defined radio, audio signal processing and electrical engineering.

  7. GSM frequency bands - Wikipedia

    en.wikipedia.org/wiki/GSM_frequency_bands

    Further GSM-850 is also sometimes called GSM-800 because this frequency range was known as the "800 MHz band" (for simplification) when it was first allocated for AMPS in the United States in 1983. In North America GSM-1900 is also referred to as Personal Communications Service (PCS) like any other cellular system operating on the "1900 MHz band".

  8. Sitara ARM processor - Wikipedia

    en.wikipedia.org/wiki/Sitara_ARM_Processor

    dual C66x DSP up to 750 MHz quad ARM Cortex-M4s for image processing and general purpose up to 212 MHz Up to 10500 dual SGX544: DDR3/DDR3L: RISC OS, Linux, TI-RTOS, Android, WinCE: 10/100/1000 Mbit/s Ethernet Switch w/2 Ports, 4xPRU-ICSS (100 Mbps Ethernet) [9] multiple Video Input Ports (parallel or CSI), USB 3.0, PCIe, SATA, and Secure Boot

  9. Universal asynchronous receiver-transmitter - Wikipedia

    en.wikipedia.org/wiki/Universal_asynchronous...

    Dual, Quad and Octal PCI bus UARTs with 16C550 Compatible 5G Register Set, 64-byte Transmit and Receive FIFOs, Transmit and Receive FIFO Level Counters, Programmable TX and RX FIFO Trigger Level, Automatic RTS/CTS or DTR/DSR Flow Control, Automatic Xon/Xoff Software Flow Control, RS485 HDX Control Output with Selectable Turn-around Delay ...