Computer fundamentals — match each term in List I with the correct description in List II. List I A. CLP (Control/Logic microcode package) B. SHELL C. DSDD D. Megahertz (MHz) List II 1. Measure of microprocessor clock speed 2. Double-sided, double-density (floppy disk format) 3. Allows you to specify a file/program as the command processor 4. Microcode stored in ROM
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AA-4, B-3, C-2, D-1
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BA-3, B-4, C-2, D-1
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CA-1, B-2, C-3, D-4
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DA-2, B-3, C-4, D-1
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EA-4, B-2, C-3, D-1
Answer
Correct Answer: A-4, B-3, C-2, D-1
Explanation
Introduction / Context:This question reviews mixed computer terminology across operating systems, storage media, and processor metrics. Correctly recognizing each term helps avoid confusion between hardware-level microcode concepts, OS command interfaces, legacy disk formats, and performance units.
Given Data / Assumptions:
- CLP is taken here to denote a control/microcode package held in ROM at a low level of the CPU's control unit.
- SHELL denotes a command interpreter (e.g., bash, cmd.exe) that can be replaced or configured by specifying a file.
- DSDD stands for double-sided, double-density in floppy-disk technology.
- Megahertz (MHz) measures clock frequency.
Concept / Approach:
Map each term to its natural domain: micro-architecture (CLP → microcode in ROM), OS command interface (SHELL → command processor), removable magnetic media (DSDD → disk capacity/format), and performance metric (MHz → clock rate).
Step-by-Step Solution:
A (CLP) → microcode stored in ROM → 4.B (SHELL) → file/program acts as command processor → 3.C (DSDD) → double-sided double-density → 2.D (Megahertz) → clock speed measure → 1.Verification / Alternative check:
CPU design texts describe stored-program control via microcode ROMs; OS documentation explains configuring a shell; legacy PC references list DSDD floppy specs; MHz is universally used for clock rates and radio frequencies.
Why Other Options Are Wrong:
- Swapping MHz with storage terms conflates time-rate with capacity format.
- SHELL ≠ microcode; one is software at user/system level, the other is hardware-level control.
- CLP is not a disk descriptor and DSDD is not a command interpreter.
Common Pitfalls:
Confusing DSDD (density, sides) with high-density (HD) formats; mixing up shell customization with scripting languages; and interpreting MHz as throughput instead of frequency.
Final Answer:
A-4, B-3, C-2, D-1