MIDLAND COMPUTERS. ABN No: 59 513 021 247 Business Address: Unit 8, 245 Great Eastern Hwy, Midland, WA 6056.Phone: 08 6266 8370. Mobile: 0434 589 495. Opening Hours:Monday – Friday (8:30AM – 5:00PM)Saturday (10:30AM – 3:00PM)Sunday closed.