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Mechatronics and Robotics Seminar held at MUST last April 25-29, 2011 | Visit my website www.rolysentparedes.com for more photos.
The logic PCB is then fitted and connected up. Two cables to the keyboard, 2 to the display and one to the battery.
The main logic PCB of the terminal. Oddly there is no serial chip (UART, or similar), the serial interface is bit-banged by the Z80A processor.
On the left side of the photo (rear of the PCB when installed) is the video circuitry using the SAA5020 timing chain and SAA5050 character generator. The 2 chips in the middle of the board are the 16K bytes of video RAM (each chip is 16K*4, from the component numbers on the board I suspect an earlier version used 16K*1 DRAMs). Next comes the processor with a Z80CTC alongside it (used for cassette tone generation and interrupts). Finally on the right hand edge of the board are various TTL devices used mostly for I/O
On Take Your Children To Work Day, you have to follow the flowchart to determine whether or not you're allowed to have a cookie.
www.viyorktech.com/products/programmable-logic-controller...
Programmable logic controllers (PLC) have been widely used in various industrial control fields before the advent of PROGRAMMABLE logic controllers, it was generally necessary to use hundreds of relays and counters to form an automated system with the same function. Now, these large devices have been largely replaced by simple programmable logic controller modules.
The system program of the programmable logic controller has been initialized before leaving the factory. Users can edit the corresponding user program according to their needs to meet different automatic production requirements.
The Programmable Logic Controller just can offer a circuit logic control function at first, so it was called by Programmable Logical Controller. With constant development, these previously simple computer modules already have many functions, such as logic control, timing control, analogue control, multi-machine communication, and so on. So its name is called by Programmable Controller.
Optoisolators
Full description/analysis: www.eevblog.com/forum/projects/reverse-engineering-misc-a...
Thriller Featuring DJ Logic performing for the free concert series Bud Light Street Beat in Vail Village on 4.14.10. Other highlights included a Michael Jackson costume contest dance-off and a Volvo C30 car give-away!
Bud Light Street Beat is a project of the Vail Valley Foundation. Complete information can be found at www.vvf.org.
Thriller Featuring DJ Logic performing for the free concert series Bud Light Street Beat in Vail Village on 4.14.10. Other highlights included a Michael Jackson costume contest dance-off and a Volvo C30 car give-away!
Bud Light Street Beat is a project of the Vail Valley Foundation. Complete information can be found at www.vvf.org.
Two Jigsaws cut the same but with small differences in the picture. This pair have items showing a change in three of their attributes.
Hangout Music Festival - Day 2 (w/ The Chainsmokers, Halsey, St. Vincent & More) @ Gulf Shores, AL on May 19, 2018
The logic chassis is fitted over the floppy and tape drives and retained by a single screw. The power cables and the ribbon cables to the drives are then plugged in.