Sinclair Cambridge [SEP] manufacturer
Sinclair Cambridge
The Sinclair Cambridge was a pocket-sized calculator introduced in August 1973 by Sinclair Radionics. It was available both as kit form kit to be assembled by the purchaser, or assembled prior to purchase. The range ultimately comprised seven models, the original "four-function" Cambridge, which carried out the four basic mathematical functions of addition, subtraction, multiplication, and division, being followed by the Cambridge Scientific, Cambridge Memory, two versions of Cambridge Memory %, Cambridge Scientific Programmable and Cambridge Universal.
Earl of Caithness (died 1582) (resigned 1545)
- John Sinclair, Master of Caithness ( – Sep 1575)
- George Sinclair, 5th Earl of Caithness (1566–1643)
- George Sinclair, 6th Earl of Caithness (died 1677) (resigned 1672)
- John Campbell, 1st Earl of Breadalbane and Holland (1633–1717) (resigned 1681)
- George Sinclair, 7th Earl of Caithness (died 1698)
- John Sinclair, 8th Earl of Caithness (died 1705)
- Alexander