View allAll Photos Tagged Microprocessors
The microprocessor. They were mostly made by Rockwell. This was an 8-bit 2MHz device. Remember this was 1981 onwards :-)
My three year old Toshiba A105-S4254 laptop computer was still running well but I needed more hard drive space and RAM for multi-tasking. I bought 4GB of 667Mhz RAM and a 320GB hard drive.
For more, check out this Toshiba A105 RAM & Hard Drive Upgrade Guide
This image is taken with an 18-55mm VR lens dismounted and handheld in reverse.
This lens is currently not mounted.
This has potential, I think I will buy some reversing rings to play around with.
Están en el interior de mucho de lo que nos rodea.Todas nuestras infraestructuras están controladas por aparatos que los contienen...y muy pocos de nosotros los comprenden.Nos son tan extraños como aquellos que los producen.
Extranjeros, nuestra economía depende de ellos igual que nuestro bienestar se asienta en el expolio de las regiones que contienen los minerales con los que los fabricamos...depende de ellos igual que dependemos de la explotación de poblaciones en lugares lejanos...
three sets of patches. 2 resistor networks needed their values halved so I paralleled an identical (47 ohms) one across the existing one. that's one patch.
another patch is to have pullups for the TI branded port expander chips. that's the 2nd set of yellow r-networks (the ones to the far left in the photo).
the 3rd patch is where I had to use a too-small r-network on top (not seen, would be far right set of SIP pins) but I didn't bend the leads over to get the 'power dc' led wires. some small solder bridges across adjacent pins fixed that one.
the board is now ready for operation in the real word (lol).
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One of the three video controllers on the board. Seems to be a National Semiconductor 525T Video Controller?
This is what my fancy new macro lens was actually bought for.
This is a 4x4mm ASIC chip (application specific integrated circuit) which drives our sensors.
My old 4Gig Lexar Compact Flash Memory Card died so I decided to see what was inside.
Being an electronics engineer long ago I found it a bit boring - I prefer valves and discrete components.
Wikipedia: The first Pentium III variant was the Katmai (Intel product code 80525). It was a further development of the Deschutes Pentium II. The only differences were the addition of execution units and the modification of instruction decode and issue logic to support SSE; as well as an improved L1 cache controller - the L2 cache controller was left unchanged, as it would be completely redesigned for Coppermine anyway - which was responsible for the minor performance improvements over the "Deschutes" Pentium IIs. It was first released at speeds of 450 and 500 MHz. Two more versions were released: 550 MHz on May 17, 1999 and 600 MHz on August 2, 1999. On September 27, 1999 Intel released the 533B and 600B running at 533 & 600 MHz respectively. The 'B' suffix indicated that it featured a 133 MHz FSB, instead of the 100 MHz FSB of previous models.
The Katmai contains 9.5 million transistors and has dimensions of 12.3 mm by 10.4 mm (128 mm2). It is fabricated in Intel's P856.5 process, a 0.25 micrometre CMOS process with five levels of aluminum interconnect.[2] The Katmai used the same slot based design as the Pentium II but with the newer SECC2 cartridge that allowed direct CPU core contact with the heat sink. There have been some early models of the Pentium III with 450 and 500 MHz packaged in an older SECC cartridge intended for OEMs.
A notable stepping for enthusiasts was SL35D. This version of Katmai was officially rated for 450 MHz, but often contained cache chips for the 600 MHz model and thus usually was capable of running at 600 MHz.
iOS Wallpaper Blog: iOS Wallpaper
The mod (yellow wire) adds the Band D signal to the radio's Band/data pigtail when connected for use with CAT. Band D signal is used when the APRS tracker (OpenTracker) is plugged in to switch between the HF and VHF profiles.
sigh. 'plug compatible' should always be viewed with suspicion.
supposedly, the TI (texas instruments) and philips (NXP) parts are the same. but they're not!
the TI version needs pullup resistors or it just will NOT work! the NXP part does not need them.
I did all my testing (up to now) with NXP and it was a good thing I tried the TI part else I would not have known about these NEEDED pullups!
the pullups were hacked in as resistor networks (yellow things) across the output of the PE chips and bussed to Vcc as a normal pull-up would do.