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151.

The printer that wouldn't print: Fixing an IBM 1401 mainframe from the 1960s

8 years ago

129 points

152.

Inside the 8086 processor, tiny charge pumps create a negative voltage

6 years ago

129 points

153.

Restoring Y Combinator's Xerox Alto, day 3: Inside the disk drive

10 years ago

129 points

154.

Reverse-engineering the first FPGA chip, the XC2064

6 years ago

128 points

155.

TROS: How IBM mainframes stored microcode in transformers (2019)

5 years ago

128 points

156.

Inside the 8086 processor's instruction prefetch circuitry

3 years ago

127 points

157.

Reverse-engineering the division microcode in the Intel 8086 processor

3 years ago

127 points

158.

A computer built from NOR gates: inside the Apollo Guidance Computer

7 years ago

127 points

159.

Reverse-engineering the 8086 processor's address and data pin circuits

3 years ago

127 points

160.

The complex history of the Intel i960 RISC processor

3 years ago

126 points

161.

Reverse engineering the ARM1, ancestor of the iPhone's processor

10 years ago

126 points

162.

The Z-80 has a 4-bit ALU. Here's how it works.

13 years ago

126 points

163.

The Xerox Alto, Smalltalk, and rewriting a running GUI (2017)

a year ago

124 points

164.

Inside the 74181 ALU chip

9 years ago

124 points

165.

Teardown of a quartz crystal oscillator and the tiny IC inside

4 years ago

123 points

166.

Reverse engineering circuitry in a Spacelab computer from 1980

a month ago

123 points

167.

The Texas Instruments TMX 1795: the first, forgotten microprocessor

11 years ago

122 points

168.

Examining the core memory module inside a vintage IBM 1401 mainframe

11 years ago

122 points

169.

Reading a VGA monitor's configuration data with I2C and a PocketBeagle

8 years ago

121 points

170.

Die analysis of the 8087 math coprocessor's fast bit shifter

6 years ago

121 points

171.

Soyuz spacecraft digital clock teardown

5 years ago

120 points

172.

Die shrink: How Intel scaled down the 8086 processor

6 years ago

119 points

173.

Reverse-engineering an unusual IBM modem board from 1965

5 years ago

118 points

174.

IBM, sonic delay lines, and the history of the 80×24 display

7 years ago

117 points

175.

X-ray reverse-engineering a hybrid module from 1960s Apollo test equipment

4 years ago

117 points

176.

Restoring YC's Xerox Alto, day 1: Power supplies and disk interface

10 years ago

117 points

177.

Conditions in the Intel 8087 floating-point chip's microcode

5 months ago

116 points

178.

Restoring YC's Xerox Alto day 9: tracing a crash through software and hardware

10 years ago

116 points

179.

Reverse-engineering precision op amps from a 1969 analog computer

7 years ago

115 points

180.

Christmas shopping the IBM way: computerized gift selection in 1962

4 years ago

115 points