| Manufacturer: |
Hayakawa Electric Co. Ltd. (Sharp) |
| Model Number: |
Compet 20 (CS-20A) |
| Serial Number: |
#1: 711901 |
|
#2: 701309 |
| Date of Introduction: |
September, 1965 (Japan) |
|
Late 1965 (Australia) |
|
Early 1966 (USA) |
| Date of Manufacture: |
Two Units in Museum Collection |
|
#1: January, 1967 |
|
#2: September, 1967 |
| Manufactured In: |
Japan |
| Original Price: |
¥379,000 in Japan (Approx. $1,050 US) |
| Weight: |
35 Pounds |
| Size: |
15 3/4" Wide, 19" Deep, 8 3/4" High |
| Power Requirement: |
35 Watts, 110-120V AC, 60Hz |
| Display Technology: |
Nixie Tube, NEC/Hitachi CD-65, Qty. 14 |
|
5/8-inch digit, right-hand decimal point
|
|
Special +/- Sign Nixie Tube (NEC/Hitachi CD-59) |
| Logic Technology: |
Discrete Silicon & Germanium Transistors (no ICs) |
| Clock Frequency: |
100 KHz |
|
630 Transistors, 1980 Diodes |
|
20 Plug-in Circuit Boards, Hand-wired backplane |
| Digits of Capacity: |
14 |
| Decimal Modes: |
Floating or Fixed (See Text) |
| Arithmetic Logic: |
Arithmetic |
| Math Functions: |
Four Function |
| Constant: |
No |
| Memories: |
None |
| Performance: |
Addition/Subtraction: 6mS (Mfg. Claimed) |
|
Multiplication/Division 100mS |
| Notes: |
Sharp's second electronic calculator. |
|
Sharp's first use of Japanese-made Silicon transistors. |