haha.... this thread brings back memories!!
First computer: Commodore 64 (c.1984).... and that was 64k memory.... NOT 64bit
Some people had the 5.25" floppy disks (180k), but I had to make do with the audio cassettes (5-10minutes to load a game!)...
First family PC: an 8086 "XT clone" (c.1989) clocked at a whopping 5Mhz, instead of the usuall 4.77Mhz.... and it had a turbo button that took it up to 12Mhz, but some games were unplayable at 12Mhz as the character's movements were based on the CPU clock speed. This was upgraded from the usual 512kb RAM to 640kb with 16 little 16kb chips that plugged directly into the motherboard.
Firsty personal PC's: Dell 325 (386DX 25Mhz)(c.1992), Pentiums were out, but most had 1Mb-4Mb RAM, so this was faster for most stuff as it was upgraded to the gills: maths co-processor and a total of 40Mb RAM! (16Mb on the motherboard: 4x4Mb SIMMS) and another 2x Intel "Above Boards" (8Mb+16Mb), so it had the full quota of extended memory (16Mb), expanded memory (16Mb) and at least a an 8Mb RAM drive...
First modem (family): (c.1990) BAUD2400 "double speed" (most online experiences were 1200bps), but there wasn't anything out there really - just a few BBS boards and my dad's computer network.
First personal modem: US Robotics "Sportster" 14.4.... followed by the US Robotics 56k!