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) | ||
| (111/2"x 81/4"X 7/8") |
...
| Keyboard | ||
|---|---|---|
| QWERTY, 64 keys including INDEX, MENU, and HELP. |
...
| Sound | ||
|---|---|---|
| Miniature loudspeaker, used for alarm or warning. | ||
| Serial 1/0 |
...
| 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
...
| Microprocessor | ||
|---|---|---|
| CMOS Z80A | ||
| 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. |
...
...