Hexadecimal Notation, Main Memory & Storage Systems
Q#1: Why is hexadecimal notation used in computer systems?
(A) To confuse users
(B) To simplify the representation of bit patterns
(C) To make bit patterns longer
(D) To reduce the number of bits
Answer: (B) To simplify the representation of bit patterns
Q#2: How many bits does each hexadecimal symbol represent?
(A) 1 bit
(B) 2 bits
(C) 3 bits
(D) 4 bits
Answer: (D) 4 bits
Q#3: What is the hexadecimal representation of the bit pattern 111010000101010100010111?
(A) E8A517
(B) E85517
(C) E810A5
(D) E10111
Answer: (B) E85517
Q#4: What is the main purpose of a computer’s main memory?
(A) To store mass storage devices
(B) To store data in binary form
(C) To perform calculations
(D) To store individual bits
Answer: (B) To store data in binary form
Q#5: What is the name for a computer’s main memory that allows for independent access to cells?
(A) ROM
(B) RAM
(C) DRAM
(D) SDRAM
Answer: (B) RAM
Q#6: What does “RAM” stand for?
(A) Random Access Memory
(B) Read-Only Memory
(C) Rapid Access Memory
(D) Remote Access Memory
Answer: (A) Random Access Memory
Q#7: Which mass storage system uses optical technology?
(A) Magnetic disks
(B) CDs
(C) Magnetic tapes
(D) Solid-state disks
Answer: (B) CDs
Q#8: What is the capacity of a typical CD sector in terms of data?
(A) 1 KB
(B) 2 KB
(C) 512 bytes
(D) 1 MB
Answer: (C) 512 bytes
Q#9: Which optical system is best suited for long continuous strings of data?
(A) CDs
(B) DVDs
(C) BDs
(D) Flash drives
Answer: (A) CDs
Q#10: How are bits stored in flash drives?
(A) By using lasers
(B) By sending electronic signals
(C) By using magnetic coatings
(D) By physically moving read/write heads
Answer: (B) By sending electronic signals