User lvd

39 votes

4 answers

4k views

What was the design rationale behind multi-port and multiple connections (and back-connections) designs of the early protocols like NFS or FTP?

asked May 13, 2020 at 21:32

25 votes

4 answers

3k views

Do instruction exercisers exist for 8086 and 68K (and other) CPUs?

asked Jul 1, 2021 at 14:05

15 votes

2 answers

2k views

Why did MC6809(E) require two-phase clock consisting of two square waves shifted by 90°?

asked Jan 20, 2020 at 16:57

14 votes

4 answers

2k views

Were there really any cost savings in Sinclair QL because of it being 8-bit design with 8-bit bus 68k CPU?

asked Jul 10, 2020 at 10:36

15 votes

3 answers

2k views

Different escape codes for the same keyboard keys -- where did they come from?

asked Feb 23, 2019 at 10:58

8 votes

2 answers

844 views

NES/Famicom CPU address range allowable for cartridges

asked Jan 15, 2018 at 20:37

7 votes

3 answers

732 views

What was the reasons for DEC engineers to choose MMU page size in VAXen?

asked Jun 4, 2019 at 19:19

9 votes

2 answers

707 views

Sinclair's microdrive -- was it based on compact cassette technologies?

asked Jul 17, 2020 at 12:16

10 votes

1 answer

672 views

PDP-8 conditional skip and 2-word instructions

asked Jan 12 at 11:01

2 votes

2 answers

508 views

What early computers were only able to print numbers?

asked Nov 26, 2019 at 19:13

2 votes

3 answers

498 views

TI-86 sound capabilities

asked Jul 5, 2018 at 13:51

12 votes

1 answer

420 views

What is the difference between i8080 and i8080a?

asked May 4, 2017 at 19:41

7 votes

1 answer

404 views

What CPU architecture was first to implement 'inverted borrow' carry flag during subtractions?

asked Sep 24, 2021 at 13:32

Stack Exchange Network

13 Questions

What was the design rationale behind multi-port and multiple connections (and back-connections) designs of the early protocols like NFS or FTP?

Do instruction exercisers exist for 8086 and 68K (and other) CPUs?

Why did MC6809(E) require two-phase clock consisting of two square waves shifted by 90°?

Were there really any cost savings in Sinclair QL because of it being 8-bit design with 8-bit bus 68k CPU?

Different escape codes for the same keyboard keys -- where did they come from?

NES/Famicom CPU address range allowable for cartridges

What was the reasons for DEC engineers to choose MMU page size in VAXen?

Sinclair's microdrive -- was it based on compact cassette technologies?

PDP-8 conditional skip and 2-word instructions

What early computers were only able to print numbers?

TI-86 sound capabilities

What is the difference between i8080 and i8080a?

What CPU architecture was first to implement 'inverted borrow' carry flag during subtractions?