Computer Codes Questions

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21.

A six - digit card field used for postal ZIP codes is defined as

A

A letter field

B

An alphabetic field

C

A numeric field

D

An alphanumeric field

E

None of the above

Correct Answer: C

None.

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22.

Registers which are partially visible to users and used to hold conditional codes (bits set by the CPU hardware as the result of operations), are known as

A

PC

B

Memory Address Registers

C

General purpose registers

D

Flags

E

None of the above

Correct Answer: D

None.

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23.

Which type of computers use the 8 bit code called EBCDIC?

A

Minicomputers

B

Microcomputers

C

Mainframe computers

D

Supercomputers

E

None of the above

Correct Answer: C

None.

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24.

The code that should be adequate for present and anticipated data processing both for machine and human use is

A

Conciseness

B

Uniqueness

C

Operability

D

All of the above

E

None of the above

Correct Answer: C

None.

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25.

What is the number of bit patterns provided by a 7-bit code?

A

256

B

128

C

64

D

512

E

None of the above

Correct Answer: B

None.

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26.

Codes which do not require to be frequently updated also promote user efficiency due to

A

Simplicity

B

Sortability

C

Stability

D

Expansibility

E

None of the above

Correct Answer: C

None.

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27.

What is the standard code the computer industry created to represent characters?

A

DASI

B

ASSH

C

ASCII

D

BASCII

E

EPROM

Correct Answer: C

ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices.

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28.

The original ASCII code used _____ bits of each byte, reserving that last bit for error checking.

A

5

B

6

C

7

D

8

E

4

Correct Answer: C

None.

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