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1 4 8 12 16 18 24 26 31 32 36 48 60 64 128 256 512
16 32 64
Floating point precision
×½ ×1 ×2 ×4
Floating point decimal precision
32 64 128

In computer architecture, 18-bit integers, memory addresses, or other data units are those that are at most 18 bits (2.25 octets) wide. Also, 18-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size.

18 binary digits have 262144 (1000000 octal, 40000 hexadecimal) distinct combinations.

18 bits was a common word size for smaller computers in the 1960s, when large computers often used 36 bit words and 6-bit character sets were the norm.

Example 18-bit computer architectures[edit]


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Mon, 08 Sep 2014 05:56:15 -0700

But now the MAXREFDES74# DAS provides an 18-bit acquisition analog input and output front end for applications demanding high precision and high-speed data conversion based on FPGA digital processing. The MAXREFDES74# plugs directly into a ...
Virtual-Strategy Magazine (press release)
Tue, 09 Sep 2014 08:45:00 -0700

ZMD AG (ZMDI), an award-winning global semiconductor company headquartered in Dresden, Germany, specializing in enabling energy-efficient solutions, today announces the launch of the ZSSC3218, a leading-edge 18-bit sensor signal conditioning IC ...

Live Design

Live Design
Tue, 30 Sep 2014 08:11:15 -0700

It boosts the already smooth colour range, fading and dimming of the DLS profile, and the DL4S also features an innovative LED driver system, producing an improved and extremely high definition dimming curve for all R, G, B and W colours … with 18 bit ...
NewsMaker (press release)
Wed, 10 Sep 2014 04:15:00 -0700

Optimized for high-resolution industrial, consumer and medical applications, this sensor interface IC combines a 24-bit DSP, high accuracy amplification and 18-bit precision analog-to-digital conversion with special features for battery-driven low ...
SYS-CON Media (press release)
Mon, 08 Sep 2014 05:56:15 -0700

8, 2014 /PRNewswire/ -- FPGA engineers can quickly evaluate and validate their FPGA-based control systems and get to market faster, using the high-speed MAXREFDES74# 18-bit data acquisition system (DAS) reference design from Maxim Integrated ...
PC Magazine
Fri, 12 Sep 2014 08:22:30 -0700

The crime game will hit Sony and Microsoft's next-generation consoles on Nov. 18 and the PC on Jan. 27. 0shares. GTA 5 PS4 · VIEW ALL PHOTOS IN GALLERY. If you've been eagerly awaiting the release of Grand Theft Auto V on the PlayStation 4 and ...


Thu, 11 Sep 2014 10:15:00 -0700

It's not a perfect dual-display solution — it can only output 18-bit color (262,144 colors) and a bit of banding isn't out of the question — but it is perfectly simple and very cheap. And based on the demo, the results are close enough to perfect ...
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