Macintosh Quadra 840AV
Codename: "Quadra 1000, Cyclone"
Introduced: July 1993
Discontinued: July 1994
Processor: Motorola 68040
Processor Speed: 40 MHz
Cache: 8 k L1
Data Path: 32 bit
System Bus: 40 MHz
Hard Drive Size: 230 MB - 1 GB
Media: CD-ROM 2x, 1.44 MB Floppy
Weight and Dimensions: 25.3 lbs., 14" H x 7.7" W x 15.75" D
Original Mac OS: Mac OS 7.1
Maximum Mac OS: Mac OS 8.1
Machine ID: 78
Motherboard RAM: 0 MB
Maximum RAM: 128 MB
Number of Sockets: 4 - 72 pin SIMMs
Minimum RAM Speed: 60 ns
Graphics Card: None
Video Memory: 1 - 4 MB (four sockets)
Built-in Display: None
Display Connection: DB-15
Slots: 3 Nubus
Hard Drive Bus: SCSI
Modem: None
PRAM: 3.6v Lithium
Power: 200 Watts
ADB: 1
Serial: 2
SCSI: DB-25
USB: None
FireWire: None
Ethernet: AAUI-15
Sound In: stereo 16 bit
Sound Out: stereo 16 bit
History: The Quadra 840AV was the first 68040 Mac to break the 33 MHz barrier. Based on the 40 MHz 68040 processor, and housed in a Quadra 800-style case, the 840AV included AV features similar to its younger sibling, the 660AV. However, it's AT&T 3210 DSP ran at a faster 66 MHz. It also included one Geoport, and sold for $3,550 U.S., which was inexpensive for what was, at the time, the fastest Mac ever.

