spectrum zx 48kB with basic (modified by sinclair)....still got that machine (with external tape !!!) remember even the first games in basic... then passed to dos without hard disk and yellow monitor.... wander who remembers the first ping virus....
I remember the michelangelo virus... at school we couldn't use the computers on March 6th. It was 1993 or 94 when my first formal PC usage learning began... Back then we used f-prot as the AV. Only 2 computers had Win 3.1 on board, and had this weird little thing called a "mouse"... what a joy it was using paint to draw, instead of Logo. And then came Win95, and according to my computing teacher "it's so advanced and powerful that a friend of his once managed to open 4 windows and it didn't crash... but then again, who is going to have 4 windows open on his everyday computing?" Those where the days... PS: I remember my first disaster on the home computer (586-box with win95), caused by me entering "deltree windows" on the DOS prompt
Windows 98 SE. Started rather late in life and on the first day had no idea how to close the dial-up connection. Main purpose in finally deciding to buy a computer was to get the latest stock quotes - told the salesman I wasn't interested in all this files and folders stuff and just wanted to surf the internet.
Other -- CP/M CP/M for quite awhile -- three systems. Apple II with CP/M card so I could use VisiCalc, Wordstar and dBase. Kaypro II (switched from VisiCalc to SuperCalc) Kaypro IV -- upgraded to the IV for the two DS/DD drives (390 kB) Tandy TRS 80 II at the office with dual 8" (500 KB!) Flopy Disk Drives Staid with the CP/M Kaypro IV until 1987 and upgraded to the Kaypro 286i (IBM PC XT 286 clone) released -- back when 40 MB HDD was HUGE and 12 MHz processor was FAST!! For the kids had Commodore Vic 20, and Commodore 64.
Started with IBM DOS 6 on a UMC 486 SX with 4MB ram, 128kb video card with a 80MB HD. I soon installed Win 3.1 and learned how to tear down my computer (several times) and if I had a dollar for every format re-install, I'd be a millionaire.The HD was too small so I bought a SCSI card with a IOMEGA Zip 100 drive and ran Netscape 0.9 off the zip disk, along with several other programs. I then changed the CPU to an Intel 486 DX2, along with another 4MB ram (the RAM and CPU were $200). I remember when the first 1 Gig drives came out, and somehow talked my wife into allowing me to buy one, a cool $450. I still have that drive (somewhere), a Conner 1.08 GB. Colin
In the modern era DOS on an IBM PS2 60 mg hard drive. Before that Sinclair Spectrum, QL etc . Before that Olivetti 101 back in 1968. Too far back to remember. No screen, no sound, no mouse, ..... No FD-ISR, No internet, but it worked. http://www.science.uva.nl/faculteit/museum/Programma101.html
Biggest issue is that you have to put the whole system in stand-by every night and you can't upgrade your memory when the system gets older .
My first OS was Windows ME around 2000 mid year . And I never had any problems with it as many others have--just lucky I guess!! Had to upgrade as my DSL browser no longer excepted it -thus no free anti malware protection.
I replied with the DOS answer, but technically, it was the CDC (Control Data Corporation) MASTER (Mutil-access shared time executive routine) OS system.
I cannot remember what the OS was. It's was 1969-1972 time frame, we had a teleltype in the back of the Physics lab at my high school connected to a timeshared mainframe via a telephone acoustic coupler. We wrote programs in basic. I still have some of the punch cards and punch tape I made to save my programs.