| 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. |