2019 Computer Science WAEC Objective Past Questions

The personnel who deals with the computer and its management is called

The map of Nigeria is an example of

The hexadecimal number 13, expressed as a binary number is

Which of the following statements are true about computer?
I. It is constructed from electronic components
II. It has self regeneration capability
III. It has facility for storage of data and programs
IV. It has provision for input and output of data.

Computers are classified using the following criteria except

The Slide Rule is accurate to

Modern computers compared to earlier computers are

An input device that converts an image into text is known as

The type of printer which works on the same principle as a photocopier is

The output of a NAND gate is 1 when

A company known as CIBITO has the following memory modules in four of its computers as shown in Table 1

Use the information in Table 1to answer questions 11

Which of the memory modules is appropriate for a notebook computer?

A company known as CIBITO has the following memory modules in four of its computers as shown in Table 1

Use the information in Table 1to answer questions 12

The memory module with the smallest physical size is

A company known as CIBITO has the following memory modules in four of its computers as shown in Table 1

Use the information in Table 1to answer questions 12

Identify the memory module with the largest physical size

The scanner and the floppy disk are

The set of instructions written by computer experts to solve specific task of the user is called

A collection of software that allows the computer to operate is called

A suite of software that controls and manages the basic operation of a computer is

The Windows PC and the Apple Macintosh are examples of two different

Machine Language instructions are expressed in

The following symbols are used in flowcharting except the

Three major types of language translators are

Translate  as a BASIC arithmetic expression

The term compiler in computer programming refers to a

The IF … THEN statement in BASIC programming is

Flexibility of a good program means

Fibre Optic cable transmits signal in the form of

Data transfer can be initiated through the following media except

The topology represented in Figure 1 is

To send a created MS PowerPoint document using email to a user, the document can be added as

What type of network is represented in Figure 2?

The major advantage of free software is that it is

MS Excel, the cell that contains the pointer or cursor is called

One major difference between paper spreadsheet  andelectronic spreadsheet  is

To hold row and column titles in places so that they do not scroll when the user scrolls a worksheet, click the

In Microsoft PowerPoint, two kinds of sound effect files that can be added to a presentation are

A cell with a red triangle in the top-right corner in a spreadsheet application signifies

Spreadsheet packages can be used for

Which of the following is true when data maintained in MS Excel workbook is linked to a word document? The Word document

Data that is copied from an application is stored in the

After several ‘save’ and ‘delete’ operations, there remain many scattered areas of data too small to be used productively. This describes

The disk operating system will label three hard drives as

Which of the options labeled I to IV give the two stages involved in booting?

I. Power OnSelf Test

II. Loading of Operating System

III. Loading of email IV. Power on Safe Mode

A bit as used in computing in digital communication is

Multiply 101₂ by 11₂

In BCD encoding system, 25₁₀ will be represented as

The following actions are sources of security breaches in computing except

Effects of file insecurity include the following except

Which of the file organization methods can be accessed both randomly and sequentially?

A computer program that gathers information about a person or organization without their knowledge or consent is known as

Password reset disk should be created