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31. How many Bytes make a Megabyte?
A. 1024
B. 128
C. 1048576
D. 512
ANSWER:B
SOLUTION : The metric prefix “M” (“mega”), in non-computer contexts, means 1 million (1,000,000). Since 1 million is very close to 2**20 (1,048,576), it has become traditional in computing contexts to refer to 1,048,576 bytes as one “megabyte”.
32. Which is representative of the size of the memory?
A. Storage capacity
B. Access mode
C. Access time
D. None of these
ANSWER: A
SOLUTION: Storage capacity is the size of memory and is representative of the amount of data a computer system can contain. It’s usually measured in bytes. For example, a computer with a 500 GB hard drive has a storage capacity of 500 gigabytes.
33. Where is data saved permanently?
A. Main Memory
B. Storage
C. CPU
D. Printer
ANSWER:B
SOLUTION:Secondary storage (also called external memory or auxiliary storage) is a storage medium that holds data or information until it is deleted or overwritten if the computer has no power.
34. Where are programs and data to be used by the computer available?
A. Processing unit
B. Output
C. Storage
D. Input
ANSWER:C
SOLUTION:Storage devices are the place where programs and data are available for use by a computer. These devices can store data for short-term or long-term use.
35. How many types of memory does a computer have?
A. Four
B. Eight
C. One
D. Two
ANSWER:D
SOLUTION: Computers have two types of memory: primary and secondary.
36. Primary storage is ___ as compared to secondary storage.
A. Slow and inexpensive
B. Fast and inexpensive
C. Fast and expensive
D. Slow and expensive
ANSWER: C
SOLUTION: Primary storage is faster and more expensive than secondary storage. Primary storage is the main memory,
37. The key feature(s) of internal memory is/are__________.
A. Limited storage capacity
B. Temporary storage
C. Fast access and high cost
D. All of the above
ANSWER: A
SOLUTION:Internal memory, or RAM, has limited storage capacity, is temporary, and has fast access. It’s usually stored in the hard drive and is directly connected to the CPU. Data stored in RAM is lost when the computer is turned off.
38. Internal storage is also called main __________.
A. Memory
B. Area
C. Screen
D. Unit
ANSWER:A
SOLUTION: Internal storage is also called main primary storage. Explanation: Primary storage (also known as main memory, internal memory or prime memory), often referred to simply as memory, is the only one directly accessible to the CPU.
39. The two kinds of main memory are ______.
A. ROM and RAM
B. Primary and secondary
C. Floppy disk and hard disk
D. Direct and sequential
ANSWER: A
SOLUTION:The two main types of primary storage are ROM, which is non-volatile, and RAM, which is volatile.