Computer Fundamental Miscellaneous - Study Mode

[#1156] Which of the following is used for manufacturing chips?
Correct Answer

(D) semiconductor

Explanation

Solution: A semiconductor is used to fabricate computer chips. Dozens or even hundreds of chips are produced at once on a silicon wafer like the one above. Semiconductors are the materials which have a conductivity between conductors (generally metals) and non-conductors or insulators (such as ceramics). Semiconductors can be compounds such as gallium arsenide or pure elements, such as germanium or silicon.

[#1157] Which of the following terms applies to communication between separate computer systems?
Correct Answer

(D) Connectivity

Explanation

Solution: Protocol, in computer science, a set of rules or procedures for transmitting data between electronic devices, such as computers. Connectivity is a word used to describe how well hardware or software devices can communicate with a range of other devices. For example, a computer mouse used to interact with desktop computers, laptops, smart phones, and tablets would be described as having good connectivity.

[#1158] Output hardware is often categorized according to whether it:
Correct Answer

(C) produces hardcopy or softcopy

Explanation

Solution: Output hardware is often categorized according to whether it produces hardcopy or softcopy. Printers are the most used use to produce a hardcopy output which is printed paper. When a document is created on a computer, it is typically saved as a file on the computer's hard drive. This is sometimes referred to as a softcopy.

[#1159] The original ASCII code used _____ bits of each byte, reserving that last bit for error checking.
Correct Answer

(C) 7

Explanation

Solution: The original ASCII was a 7 bit character set (128 possible characters) with no accented letters. This was used in teletype machines. (The eighth bit was originally used to check parity - a way to look for errors.)

[#1160] Which of the following terms is the most closely related to main memory?
Correct Answer

(D) Temporary

Explanation

Solution: Temporary terms is the most closely related to main memory. Random access memory (RAM) is used as the working memory of a computer system. It stores input data, intermediate results, programs, and other information temporarily. It is usually volatile, which means that all data will be lost when the power is turned off.