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2. 74181 - Wikipedia

   en.wikipedia.org/wiki/74181

   Manufacturer's data sheets: Texas Instruments (and 74182 look-ahead carry generator) Signetics; Philips; Fairchild. Explanation of how the chip works. Inside the vintage 74181 ALU chip: how it works and why it's so strange; Inside the 74181 ALU chip: die photos and reverse engineering showing its floorplan and transistor layout of some of its gates

3. Talk:74181 - Wikipedia

   en.wikipedia.org/wiki/Talk:74181

   Download as PDF; Printable version; ... "The 74181 is a bit slice arithmetic logic unit ... the signal "L" from figure 1 of the data sheet translates to logical one ...

4. List of Microsoft Office filename extensions - Wikipedia

   en.wikipedia.org/wiki/List_of_Microsoft_Office...

   .xlsm – Excel macro-enabled workbook; same as xlsx but may contain macros and scripts.xltx – Excel template.xltm – Excel macro-enabled template; same as xltx but may contain macros and scripts; Other formats Microsoft Excel uses dedicated file formats that are not part of OOXML, and use the following extensions:.xlsb – Excel binary ...

5. Xerox Alto - Wikipedia

   en.wikipedia.org/wiki/Xerox_Alto

   Other tasks serve the display, memory refresh, disk, network, and other I/O functions. For example, the bitmap display controller is little more than a 16-bit shift register; microcode moves display refresh data from main memory to the shift register, which serializes it into a display of pixels corresponding to the ones and zeros of the memory ...

6. 7400-series integrated circuits - Wikipedia

   en.wikipedia.org/wiki/7400-series_integrated...

   Some models of the DEC PDP-series 'minis' used the 74181 ALU as the main computing element in the CPU. Other examples were the Data General Nova series and Hewlett-Packard 21MX, 1000, and 3000 series. In 1965, typical quantity-one pricing for the SN5400 (military grade, in ceramic welded flat-pack) was around 22 USD. [19]

7. Data General Nova - Wikipedia

   en.wikipedia.org/wiki/Data_General_Nova

   The 74181 ALU is the large IC center-right. As a demonstration of the power of their Micromatrix gate array technology, in 1968 Fairchild prototyped the 4711, a single-chip 4-bit ALU. [ 10 ] [ 21 ] The design was never intended for mass production and was quite expensive to produce.

8. File:41 ALU Recycling Code.svg - Wikipedia

   en.wikipedia.org/wiki/File:41_ALU_Recycling_Code.svg

   This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

9. Datasheet - Wikipedia

   en.wikipedia.org/wiki/Datasheet

   Front page of a floppy disk controller data sheet (1979) A datasheet, data sheet, or spec sheet is a document that summarizes the performance and other characteristics of a product, machine, component (e.g., an electronic component), material, subsystem (e.g., a power supply), or software in sufficient detail that allows a buyer to understand what the product is and a design engineer to ...