4 ms·
I remember CP/M with fondness. My father gave me an Osborne 1 for my first computer when I was 12 (41 years ago). It came with CBASIC2 as well as MBasic, and I
by Communitivity 4y ago
I remember CP/M with fondness. My father gave me an Osborne 1 for my first computer when I was 12 (41 years ago). It came with CBASIC2 as well as MBasic, and I managed to find a Lisp (I forget what flavor). To put the Osborne 1 in perspective, the stats:
* 64kb memory (yes that's kilobytes)
* 2 5 1/4 floppy disks
* No hard disk
* 5" monochrome green screen monitor
* 4 MHz CPU
* 37 watt power supply
* weighed ~25 pounds
- jfengel 4y agoPlus an RS-232 for your modem and an IEEE 488 for your printer. That CPU lacked a multiply instruction, so you had to implement that yourself.
- veltas 4y agoThe multiply instructions on later CPUs were implemented as microcode programs on the silicon, so sometimes it was faster to write your own or a specialised routine anyway.
- jahnu 4y agoLuxury! https://m.youtube.com/watch?v=ue7wM0QC5LE https://m.youtube.com/watch?v=ue7wM0QC5LE ;)
- OnlyMortal 4y ago4mhz CPU? Luxury super computer!
- varjag 4y ago3.5-4Mhz was standard for most Z80 based systems.
- sedatk 4y agoStill, it didn't perform much better than a 1Mhz 6502 due to its design.
- OnlyMortal 4y agoElite on the Spectrum ran much faster than Elite on the C64.