Appendix F - Specification

Power source
		4 x AA Alkaline Cells (MN1500, LR6) providing 20 hours of use.
		AC Mains adaptor (6.5 v DC ±10%), 500 mA, centre positive.
Weight
		900 g (1.98 lb).
Dimensions
		294 mm (L) x 210 mm (D) x 23 mm (H)
		(11-1/2" x 8-1/4" x 7/8")
Keyboard
		QWERTY, 64 keys including INDEX, MENU, and HELP.
Sound
		Miniature loudspeaker, used for alarm or warning.
Serial I/0 Port
		RS232, connector 9-way 'D' female.
Operating system
		Unique to Cambridge Z88 (concurrent, 4M Bytes address range).
Operating temperature
		0°C to 40°C (32° to 104°F).
Microprocessor
		CMOS Z80A 3.2768Mhz
Internal memory
		DRAM CMOS 32K Bytes
		ROM CMOS 128K Bytes
		Internal options allow the use of up to 512K RAM and 512K ROM in future machines.
Memory cards
		Slots 1, 2, or 3 1M Byte per card maximum
		Slot 3 also programs EPROM cards.
CMOS RAM
		Random Access Memory. Data retained while machine is powered.
CMOS EPROM
		Erasable, Programmable, Read-Only Memory
		Data retention measured in years. Card can be removed from Cambridge Z88 without data loss. Eraser available from Cambridge Computer Limited.

Cambridge Z88 User Guide