Identify the chronological sequence of the following communication devices:…
2024
Identify the chronological sequence of the following communication devices:
(A) Audio cassettes
(B) Long playing record
(C) Magnetic tape
(D) Compact discs
(E) MP3
Choose the correct answer from the options given below :
Answer: C. (C), (B), (A), (D), (E) — Concept — A recording medium takes its place in a technology timeline from the year its own named format arrived in public use, not from the age of the…
- A.
(A), (B), (C), (E), (D)
- B.
(B), (D), (E), (A), (C)
- C.
(C), (B), (A), (D), (E)
- D.
(D), (E), (B), (C), (A)
Show answer & explanation
Correct answer: C
Concept — A recording medium takes its place in a technology timeline from the year its own named format arrived in public use, not from the age of the physical principle behind it. Magnetic recording, mechanical groove recording and digital encoding all overlap in time, so knowing which family a medium belongs to never settles the order by itself. Sequence such an item by dating each named format separately and then reading the dates off in ascending order.
Application — Dating each of the five named formats by its own arrival in public use:
Format | Arrival | What fixes that date |
|---|---|---|
Magnetic tape | 1935 | Fritz Pfleumer patented oxide-coated paper tape in 1928, and AEG put practical tape recording into public use with the Magnetophon in 1935. |
Long playing record | 1948 | Columbia Records launched the 33⅓ rpm microgroove disc holding roughly twenty minutes a side. |
Audio cassettes | 1963 | Philips presented the Compact Cassette at the Berlin Radio Show, shrinking magnetic tape into a pocket-sized shell. |
Compact discs | 1982 | Sony and Philips put the optical digital disc on sale, after demonstrating it in 1979 and agreeing the Red Book standard in 1980. |
MP3 | 1993 | MPEG-1 Audio Layer III was finalised by the Fraunhofer-led group in 1992 and published as ISO/IEC 11172-3 in 1993; the .mp3 file extension followed in 1995. |
Cross-check — Three traps are worth testing the order against:
Disc records as a family are far older than tape, but the long playing record is a 1948 format while practical magnetic tape recording dates from the 1930s, so the tape belongs first here. Judging by family instead of by format is what produces a reversed opening.
Audio cassettes are a magnetic tape medium too, yet the Compact Cassette is a 1963 miniaturisation of that same principle, so it sits a generation later rather than beside the tape.
The two digital formats keep their own internal order: the optical disc reached buyers in 1982, roughly a decade before the compressed audio format was standardised.
Result — The chronological order runs magnetic tape (1935) → long playing record (1948) → audio cassettes (1963) → compact discs (1982) → MP3 (1993), which is the sequence (C), (B), (A), (D), (E).