ELEX Pre-Board Exam 13

A four-element solid-state device that combines the characteristics of both diodes and transistors.

• Tunnel diode
• Silicon controlled rectifier
• Varactor
• Zener diode

What type of radar target bearing is referenced to your ship or aircraft?

• True bearing
• Magnetic bearing
• Direct bearing
• Relative bearing

Which part of the computer performs mathematical operation?

• ALU
• CPU
• Flip-flop
• Assembly language

The first mass-produced computer built by Eckert and Maunchy Computer Company in Philadelphia USA in 1950.

• IBM – 701
• CRAY-1
• UNIVAC
• ENIAC

It is a sequence of operation in a digital computation.

• Flow chart
• Truth table
• Algorithm
• FORTRAN

What is the central processor of the computer which is sometimes referred to as the heart of a computer system?

• CPU
• SOFTWARE
• HARDWARE
• ALU

What is the process of designing more than 100 gates on a single chip?

• LSI
• SSI
• MSI
• VLSI

_____ refers to a function of a decade counter digital IC.

• Producing one output pulse for every 10 input pulses
• Adding two decimal numbers
• Producing 10 output pulses for every 1 input pulse
• Decoding a decimal number for display on seven-segment

A series of predefined actions or operations performed on a collection of facts.

• DATA PROCESSING
• HASHING
• FLOWCHARTING
• ALGORITHM

The physical machinery of a computer system.

• Hardware
• Tupperware
• Software
• Coldware