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Introduction to Digital Computers


Quiz Questions

1. The most frequent applications of the computers are found in the military, scientific, and commercial fields. They are used in many varied projects, ranging from mail sorting, through engineering design, to the identification and destruction of enemy targets.
True
False

2. What does the acronym ENIAC stand for?
Electronic Numerical Integrator & Computer
Electronic Numerical Integrator & Calculator
3. Fig1-4 represents
Electronic digital computer
Bulkhead type mechanical computer
Electromechanical computer
4. A digital computer processes data with greater accuracy than an analog computer.
True
False
5. When you turn the computer on, this program tries to load, or “boot,” an external operating system from disk, usually from drive A, into the computer’s internal memory.
True
False
6. Smoke can cause buildup on disks and on disk drives. DO NOT SMOKE while you work at a terminal or computer.
True
False
7. Disks operate between 10 and 50 degrees centigrade (50 and 120 degrees Fahrenheit).
True
False
8. What are the major types of instructions used?
Transfer & arithmetic instructions
Transfer, arithmetic & control instructions

Transfer, arithmetic & logical instructions
Transfer, arithmetic, logical & control instructions
9. The brain of the computer is
Central Processing Unit
Logical Unit
Arithmetic Unit
10.

Common types of internal storage media used in today’s computers are magnetic core, semiconductors & bubble.

True
False
11.

What does PROM stand for?

Programmable Read Only Memory
Programmable Read only main memory
12. Like the magnetic disk, the magnetic drum is not another example of a direct access storage device.
True
False
13. The heart if a computer system is the operating system.
True
False
14. Figure 3.3 represents tools in a flowchart.
True
False
15. FORTRAN, BASIC & COBOL are

Programming languages
Operating system
Both
16. Errors caused by faulty logic and coding mistakes are referred to as
Bugs
Programmers mistake
17. Figure 3-11B represents
Bar chart
Graph
18. What does the acronym EBCDIC stands for?

Extended Binary Coded Decimal Interchange Code
Extended Binary Coded Digital Interchange Code.
19. Byte represents

Single bit
Four bits
Eight bits
20. In local area networks (LANs), various machines are linked together within a building or adjacent buildings.
True
False