Tag: science & technology

A squirrel monkey is indeed a type of monkey, specifically a New World monkey found in Central and South America. Despite the name, it is not a squirrel (which is a rodent), nor is it a lizard or panda.

Leukemia is a cancer of the body's blood-forming tissues, including the bone marrow and lymphatic system. It specifically involves abnormal production of white blood cells, which is correctly stated in this question.

Ailurophobia is indeed the fear of cats, derived from the Greek word 'ailouros' (cat) and 'phobia' (fear). It is a specific type of animal phobia. The statement is factually correct.

Humans have 206 bones as adults, while cats typically have 230-245 bones (with variations due to tail length). The additional bones come from differences in vertebrae count and rib structure.

Human skin consists of three primary layers: the epidermis (outer protective layer), dermis (middle connective tissue layer with blood vessels and nerves), and hypodermis/subcutaneous layer (deepest fat and connective tissue layer).

EBCDIC (Extended Binary Coded Decimal Interchange Code) is an 8-bit character encoding scheme developed by IBM. It was commonly used on IBM mainframe systems and is an alternative to ASCII. The name correctly reflects that it extends BCD (Binary Coded Decimal) for information interchange between systems.

BCD (Binary Coded Decimal) is a binary encoding method where each decimal digit is represented by a 4-bit binary code. For example, decimal 12 would be encoded as 0001 0012 (one 4-bit code for '1' and another for '2'). This encoding is useful for applications requiring precise decimal representation like financial calculations.

ASCII (American Standard Code for Information Interchange) is a 7-bit character encoding standard that represents text in computers. It includes 128 characters covering English letters, digits, punctuation, and control characters. ASCII was developed in the 1960s and became the foundation for character encoding in computing.

EDSAC (Electronic Delay Storage Automatic Calculator) was a first-generation computer built at Cambridge University in 1949. It used vacuum tubes and mercury delay lines for memory. The other options are from later generations: IBM-1401 (second generation, transistors), CDC-1604 (third generation, integrated circuits), and ICL-2900 (third generation).

First generation computers (1940s-1950s) used vacuum tubes and valves as their primary electronic components. These tubes were bulky, generated significant heat, and were unreliable. Second generation used transistors, while third generation used integrated circuits. The vacuum tube era defined the foundational computing technology.