The major function of a Database management system is _______________

Manipulation of data in a data base

inserting errors into the program

The Caps key on a keyboard is used to___________

Switch between upper and lower case letters

In Microsoft Excel, sheet tabs can be renamed by ______

Double-clicking on the sheet tab; entering the new name

Going to File, and clicking Save As

Computer files can be characterised by all but,

It's accessibility and ability to be modified

The delete permission allows one to ____________

delete or remove files and directories

What is the major purpose of application software?

oversee the running of the computer

Why is the base 10 system unique?

There are only 10 fingers to every human

There are only 10 one digit numbers

The number 10 has just 2 factors

JAMB UTME - Computer Studies - 2022

Question 1 Report

When does the output of a NAND gate =1?

whenever a 0 is present at an input

only when all input =0

whenever 1 is present at an input

only when all input =1

Answer Details

The output of a NAND gate is equal to 1 only when one input is 0. The NAND gate is called a "NOT-AND" gate because it outputs the opposite of what an AND gate would output for the same inputs. In other words, if an AND gate would output 1 for a certain set of inputs, a NAND gate would output 0, and vice versa.






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