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. | ||