Computer Science | Mock Test-IV | Entrance Exam | MCQs |

CSS stands for Cascading Style Sheets. It is a style sheet language used for describing the presentation of a document written in a markup language like HTML. CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.

Hence, the correct answer is option a. Cascading Style Sheet

Let's see from the option

Opera: A web browser developed by Opera Software, known for its speed, security, and support for various web standards.

Google apps: This term typically refers to a suite of productivity and collaboration tools offered by Google, such as Gmail, Google Drive, Google Docs, etc. It is not a web browser.

Vivaldi: A web browser developed by Vivaldi Technologies, which is known for its customization options and features aimed at power users.

Mozilla Firefox: A free and open-source web browser developed by the Mozilla Foundation, known for its focus on privacy and user control.

Hence, the correct answer is option b. Google apps

Dennis Ritchie developed the C programming language in the early 1970s at Bell Labs. Ritchie created C as a system programming language for writing operating systems and compilers. It was designed to be simple yet powerful, providing low-level access to memory while still being high-level enough to be portable across different hardware platforms.

Hence, the correct answer is option a. Dennis Ritchie

Microsoft Word is an application software, which is a type of software designed to help users perform specific tasks. In this case, Microsoft Word is a word processing application used for creating, editing, formatting, and printing documents.

Hence, the correct answer is option d. Application

The primary job of an operating system (OS) is to manage the resources of a computer system. This includes handling hardware resources such as the CPU, memory, storage, and input/output devices, as well as software resources. The OS ensures that these resources are allocated efficiently and fairly among the various programs and users, providing a stable and efficient environment for running applications.

Hence, the correct answer is option c. manage resources

Here, we have to convert binary number system i.e 1011 into decimal number system as follow

1011

=(1 × 2^3) + (0 × 2^2) + (1 × 2^1) + (1 × 2^0)

= 8 + 0 + 2 + 1

= 11

Hence, the correct answer is option c. 11

Memory in computing is characterized by several factors, but two key attributes are:

Access Time (b):

This refers to the time it takes to read data from or write data to the memory. Faster access times mean the memory can retrieve or store data more quickly, which is crucial for the performance of a computer system.

Capacity (c):

This is the amount of data that the memory can store. Higher capacity means the memory can hold more data, which is important for storing applications, files, and data used by the operating system and software.

Memory is primarily described and evaluated based on its access time and capacity.

Hence, the correct answer is option d. both b and c.

Hard disk drives (HDDs), CD drives, and DVD drives are examples of storage devices used to store digital data.

Let's see from the option

Storage (a):

These devices are designed to store data. HDDs are used for long-term storage of large amounts of data, while CDs and DVDs are optical storage media used for storing data, music, videos, and software. Their primary function is to retain data for future access and use.

Storing (b):

While "storing" refers to the action of saving data, it is not a term used to classify the devices themselves. The term "storage" is used to describe these devices.

Backup (c):

Although these devices can be used for creating backups of data, this is a secondary use. The primary role of these devices is data storage. Backup is a function or use case of storage devices, not a classification.

All of these (d):

This option is incorrect because "storing" and "backup" are not classifications of the devices. They describe actions or uses but do not accurately define what the devices are.

Hence, the correct answer is option a. storage

MS PowerPoint is a presentation program used to create slideshows composed of text, images, charts, and other multimedia elements. It is widely used for creating presentations for various purposes, such as business meetings, educational lectures, and public speaking.

Hence, the correct answer is option c. MS PowerPoint

Let's see from the option

UNIX (a):

UNIX is a multiuser, multitasking operating system originally developed in the 1960s and 1970s. It is widely used in servers, workstations, and various computing environments.

MS-DOS (b):

MS-DOS (Microsoft Disk Operating System) is an operating system that was widely used on IBM PCs and compatible systems in the 1980s and early 1990s. It is a command-line-based operating system.

PASCAL (c):

PASCAL is a high-level programming language developed in the late 1960s. It is not an operating system but a language used for writing software programs.

CP/M (d):

CP/M (Control Program for Microcomputers) is an early operating system for microcomputers. It was widely used before the advent of MS-DOS.

Hence, the correct answer is option c. PASCAL