User Evan Carroll

1

6

votes

3

answers

962

views

Why does -z and -n exist in most shells and /bin/test?

Jan 18 at 0:05 Evan Carroll 3,028

4

17

votes

3

answers

3k

views

Was there any automated unit testing prior to 1972?

assembly testing

Jun 11 at 15:59 DrSheldon 8,464

3

47

votes

1

answer

10k

views

What is the context of the button “Is MS DOS a feminist?”

ms-dos

Mar 21 '20 at 14:32 Evan Carroll 3,028

1

3

votes

1

answer

266

views

What was the last of the Thinkpad X series with replaceable RAM? [closed]

ram thinkpad

Feb 16 '20 at 8:55 Stephen Kitt 78.2k

2

votes

1

answer

322

views

Power switch color on IBM PS/2 red vs white?

ibm-pc ibm

Oct 5 '19 at 4:11 Ken Gober 10.8k

9

votes

1

answer

345

views

What do the stars mean on the Bell Labs Pins (company culture)?

history

Jul 10 '19 at 3:13 Evan Carroll 3,028

6

votes

0

answers

263

views

Did any mechanical computers or calculators handle divide by zero with an exception, or did they all loop?

calculator mechanical

Jun 21 '19 at 23:50 Evan Carroll 3,028

2

5

votes

3

answers

2k

views

When did “Zen” in computer programming become a thing?

history books

Jan 22 at 13:32 user3840170 4,226

5

17

votes

1

answer

2k

views

Which undocumented 8085 instructions is Steven Morse referring to in “In The Beginning”?

intel instruction-set 8085

Oct 16 '19 at 8:51 TonyM 1,266

8

votes

2

answers

718

views

When did Intel undergo the SEX change?

assembly intel

Oct 15 '18 at 12:05 Raffzahn 127k

2

14

votes

1

answer

514

views

SYSENTER/SYSEXIT broken on Pentium Pro and Pentium II?

assembly intel x86 bugs

Jan 19 at 9:49 user3840170 4,226

1

6

votes

1

answer

820

views

What instructions for the 8086 and subsequent x86 CPUs are not available in Long Mode?

assembly intel 8086 binary-coded-decimal

Feb 9 '19 at 18:38 DrSheldon 8,464

1

vote

0

answers

212

views

Why does Oracle use MINUS instead of EXCEPT? [closed]

terminology

Sep 25 '18 at 3:24 Community♦ 1

1

7

votes

4

answers

1k

views

Reason behind “ASCII Adjust” instructions being ASCII and not BCD?

assembly intel x86 binary-coded-decimal

Feb 9 '19 at 18:34 Community♦ 1

7

votes

1

answer

1k

views

How do you put a 286 in Protected Mode?

80286 x86 protected-mode

Sep 5 '19 at 18:32 Mike 103

5

62

votes

3

answers

12k

views

Why did DOS use dollar-terminated strings?

ms-dos assembly

Jun 28 '19 at 11:44 Community♦ 1

5

votes

3

answers

2k

views

Is BX the Base Address Register, and if so why?

intel

Sep 19 '18 at 18:29 Joshua 343

3

votes

4

answers

712

views

Was there ever a compiler type that was just large enough to contain a memory segment?

programming c compilers segmentation

Jul 13 '18 at 20:19 rcgldr 291

1

13

votes

3

answers

956

views

x86 as a Pascal Machine?

x86 pascal

Jul 7 '18 at 18:10 supercat 18.9k

1

9

votes

1

answer

674

views

Is there any reason to chose ES, FS, or GS over the others in real mode?

memory intel

Mar 22 '20 at 18:15 Raffzahn 127k

8

23

votes

2

answers

5k

views

The start of x86: Intel 8080 vs Intel 8086?

intel 8080 8086 80386 x86

Oct 16 '19 at 15:50 Peter Cordes 1,817

Stack Exchange Network

current community

your communities

more stack exchange communities

Next privilege

Next badge

21 Questions

Why does -z and -n exist in most shells and /bin/test?

Was there any automated unit testing prior to 1972?

What is the context of the button “Is MS DOS a feminist?”

What was the last of the Thinkpad X series with replaceable RAM? [closed]

Power switch color on IBM PS/2 red vs white?

What do the stars mean on the Bell Labs Pins (company culture)?

Did any mechanical computers or calculators handle divide by zero with an exception, or did they all loop?

When did “Zen” in computer programming become a thing?

Which undocumented 8085 instructions is Steven Morse referring to in “In The Beginning”?

When did Intel undergo the SEX change?

SYSENTER/SYSEXIT broken on Pentium Pro and Pentium II?

What instructions for the 8086 and subsequent x86 CPUs are not available in Long Mode?

Why does Oracle use MINUS instead of EXCEPT? [closed]

Reason behind “ASCII Adjust” instructions being ASCII and not BCD?

How do you put a 286 in Protected Mode?

Why did DOS use dollar-terminated strings?

Is BX the Base Address Register, and if so why?

Was there ever a compiler type that was just large enough to contain a memory segment?

x86 as a Pascal Machine?

Is there any reason to chose ES, FS, or GS over the others in real mode?

The start of x86: Intel 8080 vs Intel 8086?