Advanced Computer Knowledge

6A.1 Computer Fundamentals

A computer system consists of hardware (physical components) and software (programs and instructions). The Central Processing Unit (CPU) is often called the "brain" of the computer, comprising the Arithmetic Logic Unit (ALU) and the Control Unit (CU).

6A.2 Memory Hierarchy

Primary memory (RAM and ROM) is directly accessible by the CPU and is volatile (RAM) or non-volatile (ROM). Secondary memory (hard disks, SSDs) provides long-term storage. Cache memory sits between the CPU and RAM, providing very fast access to frequently used data.

6A.3 Operating Systems

An operating system manages hardware resources and provides services for application software. Common examples include Windows, macOS, Linux, and Android. Key OS functions include process management, memory management, file management, and device management.

6A.4 Networking Basics

A LAN (Local Area Network) covers a small geographic area, while a WAN (Wide Area Network) spans larger distances. The internet is the largest example of a WAN. Key networking terms include IP address (a unique identifier for a device on a network), and protocols like HTTP, FTP, and TCP/IP.

6A.5 Common Abbreviations

CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read-Only Memory), URL (Uniform Resource Locator), HTML (HyperText Markup Language), USB (Universal Serial Bus), and Wi-Fi (Wireless Fidelity) are frequently tested abbreviations in banking computer knowledge sections.

6A.6 Practice Set (10 MCQs)

1. Which component is often called the "brain" of the computer?
   (a) RAM (b) CPU (c) Hard Disk (d) Motherboard
2. Which type of memory is volatile (loses data when power is off)?
   (a) ROM (b) RAM (c) Hard Disk (d) SSD
3. Which of the following is an operating system?
   (a) Microsoft Word (b) Windows (c) Google Chrome (d) Adobe Photoshop
4. What does LAN stand for?
   (a) Local Area Network (b) Large Access Node (c) Linked Area Network (d) Local Access Node
5. What does URL stand for?
   (a) Uniform Resource Locator (b) Universal Record Link (c) Uniform Retrieval Location (d) Universal Resource Locator
6. Which memory type sits between the CPU and RAM to speed up access to frequently used data?
   (a) Cache memory (b) Virtual memory (c) Secondary memory (d) Flash memory
7. What does HTML stand for?
   (a) HyperText Markup Language (b) High-Level Text Manipulation Language (c) Home Tool Markup Language (d) HyperText Machine Language
8. Which of the following is an example of a WAN?
   (a) A school's internal network (b) The Internet (c) A home Wi-Fi network (d) A single office network
9. What does USB stand for?
   (a) Universal Serial Bus (b) United Serial Board (c) Universal System Board (d) Uniform Serial Bus
10. Which protocol is primarily used for transferring web pages?
    (a) HTTP (b) FTP (c) SMTP (d) POP3

Answer Key:

1.(b) The CPU is often called the "brain" of the computer.

2.(b) RAM is volatile memory that loses its data when power is switched off.

3.(b) Windows is an operating system, while the other options are application software.

4.(a) LAN stands for Local Area Network.

5.(a) URL stands for Uniform Resource Locator.

6.(a) Cache memory sits between the CPU and RAM, speeding up access to frequently used data.

7.(a) HTML stands for HyperText Markup Language.

8.(b) The Internet is the largest and most common example of a WAN.

9.(a) USB stands for Universal Serial Bus.

10.(a) HTTP (HyperText Transfer Protocol) is primarily used for transferring web pages.