Computer fundamental MCQ Questions and answers- Technical Aptitude

A computer system uses bits (binary digits) to denote values. It uses the binary number system to store data. Each digit (0 or 1) is a bit thus the binary number 10110110 is a binary number having 8 bits.

Terabyte (TB) = 1,099,511,627,776 or 2⁴⁰ bytes = 1,024 Gigabytes = 1,048,576 Megabytes.
Gigabyte (GB) = 1,073,741,824 or 2³⁰ bytes = 1,024 Megabytes = 1,024 Megabytes = 1,048,576 Kilobytes.
Megabyte (MB) = 1,048,576 bytes = 1,024 Kilobytes.
Kilobyte (KB) = 1,024 bytes. Therefore, TB is the largest unit in given memory storage unit.

The Windows logo key (also known as Windows key, start key, logo key, flag key, super key, command key or flag) is a keyboard key which was originally introduced on the Microsoft Natural keyboard in 1994. This key became a standard key on PC keyboards. Tapping this key invokes the operating system's start menu.

Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program or software code. Whereas, Testing is the process of finding bugs in already developed software not in software code.

To move the cursor to the beginning of line: Press "Home" button on keyboard.

It's one of the first things someone sees when they receive an email, so it's like the first impression of sorts. The best email subject lines are usually short, descriptive and provide the recipient with a reason to open your email.

An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is a software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.

In information technology, a backup, or the process of backing up, refers to the copying into an archive file of computer data so it may be used to restore the original after a data loss event.

Everyone has a phone line, dial-up connection is available to everyone with a computer and a modem. Dialup may be the only choice available for rural or remote areas where a broadband connection is not available. Low cost and Easy setup.

The term used for unsolicited e-mail is a legal term used to describe an electronic promotional message sent to a consumer without the consumer's prior request or consent. In the vernacular, this type of email address is called 'SPAM'.