| 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. |