P4 Machine -OUT OF ORDER

CPU: Pentium 4 HT 650 3.40Ghz
GPU: Gainward Nvidia GeForce GT 430 1GB
RAM: 2GB 4x512MB
MOBO: Intel D915GAV
HDD: Western Digital Caviar Green DS HDD - 500GB
OS: Windows XP Home

Laptop Acer Aspire V17 Nitro (VN7-791G)

Official website
CPU: Intel Core I7 4720HQ 3.60Ghz
GPU: Nvidia GeForce GTX 950m
RAM: 8GB 1x8GB
MOBO: Aspire VN7-791G
HDD: Segate Laptop SSHD(Hybrid) - 1000GB(1TB)
OS: Windows 10 HOME 64bit (1607)[originally Windows 8.1 64bit]

W9x "dream"

CPU: Amd Sempron (socked A) 1300mhz
GPU: Gigabyte Nvidia GeForce FX 5200 (128mb VRAM)
RAM: 512MB 1x512MB (one free slot)
MOBO: MSI KT6V
HDD: Segate Barracuda ST380021A 80GB
OS: Windows 98 Second Edition

Netbook Asus Eee Pc 1001HA

Official website
CPU: Intel Atom N270 1,60Ghz
GPU: Intel i945GME
RAM: 1GB 1x1GB
MOBO: 1005Ha
HDD: 160GB (+16GB SDcard)
OS: Windows 10 PRO 32bit (1607)[originally Windows XP (I got it with Windows 7 Starter)]

Smartphone Gigabyte Gsmart Classic

CPU: Quad core ARM Cortex a7 1.2Ghz
GPU: Mali 400 MP
RAM: 1GB
Paměť: 4GB internal 16GB SDcard
Display: 5inches 1280x720
Kamera: front: 5MP, rear: 8MP
OS: Android 5.1

Tablet Prestigio pmp5780D

CPU: Dual core ARM Cortex a9 1.6Ghz
GPU: Mali 400 MP4
RAM: 1GB
Paměť: 4GB or less
Display: 8inches 1024 x 768
Kamera: front: 0.3MP, rear: 5MP
OS: Android 4.1.1

other stuff I recommend

I really recommend use UBS hub (simgle usb to more usbs), External hard drives are cool I keep my ROMs for emulators on one, and drawing tablets are cool I have one old one(actually it's driver does not support Windows 10 but works on some microsoft default mouse driver).