Computer Awareness: notes & practice

Computer basics, hardware and software, MS Office, internet, networking, security and abbreviations.

Key topics

• Computer Basics

  Generations, input/output devices, CPU, ALU, control unit.

• Memory & Storage

  RAM vs ROM, cache, units (bit, byte, KB ... TB), primary vs secondary.

• Software & OS

  System vs application software, operating system functions, file types.

• MS Office

  Common shortcuts (Ctrl+C, Ctrl+Z, Ctrl+S), Excel functions, Word and PowerPoint features.

• Internet & Networking

  LAN/WAN/MAN, IP address, HTTP/HTTPS, DNS, email terms, topologies.

• Security & Abbreviations

  Virus, malware, phishing, firewall; common full forms.

Practice questions

Our own practice questions in the style of past papers.

1. 1. Which memory is volatile?

   A. ROMB. RAMC. Hard diskD. Pen drive

2. 2. 1 KB equals:

   A. 1000 bitsB. 1024 bytesC. 1024 bitsD. 1000 MB

3. 3. Shortcut to undo the last action:

   A. Ctrl + YB. Ctrl + ZC. Ctrl + UD. Ctrl + X

4. 4. Full form of URL:

   A. Uniform Resource LocatorB. Universal Resource LinkC. Unified Resource LocatorD. Uniform Record Link

5. 5. Which of these is an operating system?

   A. MS WordB. LinuxC. Google ChromeD. Oracle

6. 6. A fake email that tricks users into giving passwords is called:

   A. SpamB. PhishingC. FirewallD. Cookie