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Calculators: Casio Computer Company Ltd. (Japan)
Familiar Japanese calculator company that survived the price cutting of the 1970s and is still around today.  Who didn't own a Casio? Their distinctive designs are easy to recognise, the high quality still shows through. There is a very confusing numbering system with a "street name" and a code number - so both are listed when they used them.  Check out the early range of horizontal calculators - fine if you were right handed but I imagine difficult to use if you were left handed.    They also made branded calculators for the UK department store Boots and the American brand Sperry Remington.

 
8U 101-MR

121-MR

103-MR

805-MR

J-1 J-3
8U
1973
101-MR
1974
801-MR
1975
121-MR
1975
103-MR
1976
805MR
1976
J-1
J-811
1978
J-3
J-1211
1978
J-10
1984
J-20
1985
AL-8 AL-8S AL-10 memory-8A

Memory A-1

Memory B-1
Root-8S
1974
AL-8
1976
AL-8S
1976
AL-10
1976
Memory-8A
CD-813
1976
Memory-10
H-1010
1976
Memory-8F
H-812
1976
Memory-A1
H-814
1977
Memory-B1
H-816
1978
Pocket 8S Pocket-mini P-811 H-802 H-813 H-813B H-813C
Personal-8
1975
Pocket-8S
H-800
1975
Pocket-mini
P-810
1975
Pocket-mini
CP-801C
1975
 Pocket Mini
P-811
1976
Personal-I
H-802
1976
 Personal M-1
H-813
1977
 Personal M-1
H-813B
1980
 Personal M-1
H-813C
1982
Biolator H-1 H-3
Biolator H-801
1975
H-1B
1982
H-3
1984
FX-11 FX-29 ST-1
FX-11
1974
FX-17
1976
FX-19
1976
FX-20
1976
FX-29
1977
FX-31
1978
FX-39
1978
FX-110
1977
ST-1
1977
 
CM-602 CM-604 Personal Mini Personal mini cm-607
Mini
CM-602
1973
Mini
CM-603A
1973
Mini
CM-604
1974
Mini
CM-605A
1974
Personal-Mini
CM-606
1975
Personal-Mini
CM-607
1975
Mini memory Mini memory Mini-8 Memory 8R CQ-1
Deluxe Memory
1974
Mini Memory
Type I
1974
Mini Memory
Type II
1974
Mini-8
Y-800
1975
Memory 8R
Y-811
1975
CQ-1
1977
Compact Desktops

S-1(B)

S-1(B)
1986?
JE-3
1989?
Later LCD Models

FX-7000G
1985

Larger Desktops
F-1
1978
F-2
1980