Key Topic 38: Memory

Question 1

3-38E1: What is the name of the semiconductor memory IC whose digital data can be written or read, and whose memory word address can be accessed randomly?

A. ROM - Read-Only Memory.
B. PROM - Programmable Read-Only Memory
C. RAM - Random-Access Memory.
d. EPROM - Electrically Programmable Read-Only Memory.

Answer 1

C. RAM - Random-Access Memory.

Question 2

3-38E2: What is the name of the semiconductor IC that has a fixed pattern of digital data stored in its memory matrix?

A. RAM - Random-Access Memory.
B. ROM - Read-Only Memory.
C. Register.
D. Latch.

Answer 2

B. ROM - Read-Only Memory.

Question 3

3-38E3: What does the term “IO” mean within a microprocessor system?

A. Integrated oscillator.
B. Integer operation.
C. Input-output.
D. Internal operation.

Answer 3

C. Input-output.

Question 4

3-38E4: What is the name for a microprocessor’s sequence of commands and instructions?

A. Program.
B. Sequence.
D. Data string.
D. Data execution.

Answer 4

A. Program.

Question 5

3-38E5: How many individual memory cells would be contained in a memory IC that has 4 data bus input/output pins and 4 address pins for connection to the address bus?

A. 8
B. 16
C. 32.
D. 64

Answer 5

D. 64

Question 6

3-38E6: What is the name of the random-accessed semiconductor memory IC that must be refreshed periodically to maintain reliable data storage in its memory matrix?

A. ROM - Read-Only Memory
B. DRAM - Dynamic Random-Access Memory.
C. PROM - Programmable Read-Only Memory.
D. PRAM - Programmable Random-Access Memory.

Answer 6

B. DRAM - Dynamic Random-Access Memory.