Computer knowledge is now a separate, compulsory section in the second stage of the two largest SSC exams for graduates and Class 12 pass candidates. It is "qualifying", which tempts many aspirants to leave it for the last week. That is risky: if you fail the qualifying mark, the rest of your Tier-II score does not save you. This guide sets out exactly where computer knowledge is tested, what the official syllabus covers, how negative marking affects the qualifying mark, and a four-week plan to cover it.
Where computer knowledge is tested
| Exam (official notice) | Where it appears | Questions and marks | Time | Penalty | Nature |
|---|---|---|---|---|---|
| SSC CGL 2026 (notice uploaded 21 May 2026) | Tier-II, Paper-I, Section-III: Computer Knowledge Test (CKT) | 20 questions × 3 marks = 60 | 15 minutes | 1 mark per wrong answer | Mandatory but qualifying |
| SSC CHSL 2026 (notice uploaded 7 September 2026) | Tier-II, Section-III: Computer Knowledge Test | 15 questions × 3 marks = 45 | 15 minutes | 1 mark per wrong answer | Mandatory but qualifying |
Both notices set the minimum qualifying marks for this section at 30% for UR, 25% for OBC/EWS and 20% for all other categories. The CGL notice adds an important condition: for posts where computer proficiency is prescribed (it names, among others, Assistant Section Officer in CSS, MEA and AFHQ, several Inspector posts in CBIC, and Postal/Sorting Assistant), the Commission will set higher qualifying standards for both the CKT and the Data Entry Speed Test. So for many popular CGL posts, "just qualifying" may not be enough.
Other exams handle this differently. For example, the IBPS PO main exam combines general, economy, banking and digital/financial awareness in one test rather than having a separate computer section. Always check the scheme in the notice of the exam you are taking.
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The CGL 2026 and CHSL 2026 notices describe the same four areas for Computer Knowledge/Proficiency:
| Area | What the notice lists | What to be able to do |
|---|---|---|
| Computer basics | Organisation of a computer, CPU, input/output devices, computer memory, memory organisation, back-up devices, ports, Windows Explorer, keyboard shortcuts | Identify components and their roles; know common memory types and units; recognise ports; use common shortcuts |
| Software | Windows operating system, basics of Microsoft Office such as MS Word, MS Excel and PowerPoint | Know where common features live (formatting, tables, formulas, charts, slides) and what common functions do |
| Internet and e-mail | Web browsing and searching, downloading and uploading, managing an e-mail account, e-banking | Understand browsers, URLs, search, attachments, CC/BCC, safe online banking practices |
| Networking and cyber security | Networking devices and protocols; security threats such as hacking, viruses, worms and Trojans, and preventive measures | Know what routers, switches and common protocols do; recognise threat types and basic defences |
Because the syllabus names specific tools, practise on an actual computer, not only from question banks. Many questions are easier if you have used the feature yourself.
Worked example: negative marking and the qualifying mark
These are illustrative calculations for a UR candidate, using the marks and penalties in the 2026 notices.
SSC CGL CKT: 60 marks, so 30% = 18 marks. Each correct answer gives 3; each wrong answer costs 1.
- 6 correct, 0 wrong: 18 marks – just qualifies.
- 8 correct, 3 wrong: 24 − 3 = 21 marks – qualifies.
- 7 correct, 4 wrong: 21 − 4 = 17 marks – fails, even though 11 questions were attempted.
SSC CHSL CKT: 45 marks, so 30% = 13.5 marks.
- 5 correct, 0 wrong: 15 marks – qualifies.
- 5 correct, 2 wrong: 15 − 2 = 13 marks – fails by half a mark.
Two lessons follow. First, careless guesses can turn a pass into a fail in a short section. Second, if you are targeting a CGL post with a higher computer-proficiency standard, aim well above the minimum, because the higher cut-off is fixed by the Commission and is not stated in advance.
A four-week plan
| Week | Focus | Daily practice (about 30–45 minutes) |
|---|---|---|
| 1 | Computer basics | Components, memory types and units, ports, storage and back-up; make a one-page shortcut list and use it daily |
| 2 | Windows and MS Office | Hands-on: create a document with tables and headers, a spreadsheet with SUM/AVERAGE/IF and a chart, and a short slide deck |
| 3 | Internet, e-mail and e-banking | Browsers, URLs and search operators; e-mail features (CC, BCC, attachments, filters); safe e-banking habits such as checking the site address and never sharing OTPs |
| 4 | Networking, security and mocks | Networking devices and common protocols; threat types and defences; two timed 15-minute sectional tests every other day |
Topic checklist
- Hardware vs software; input, output and storage devices
- RAM vs ROM; cache; units from bit and byte to terabyte
- Common ports (USB, HDMI and others you see on your own computer)
- Windows Explorer: files, folders, copy/move/rename, search
- Common keyboard shortcuts (copy, paste, undo, select all, find, save)
- MS Word: formatting, tables, page layout, mail merge basics
- MS Excel: cell references, basic formulas and functions, sorting, filtering, charts
- PowerPoint: slides, layouts, transitions, presenter view
- Browsers, URLs, search tips, downloads and uploads
- E-mail: compose, reply, forward, CC/BCC, attachments, folders
- E-banking safety: secure sites, OTPs, phishing
- Networking devices: modem, router, switch; LAN/WAN; common protocols such as HTTP/HTTPS, FTP and SMTP
- Security threats: virus, worm, Trojan, phishing, hacking; firewalls, antivirus, strong passwords, updates
Common mistakes
- Leaving it to the end. It is quick to prepare, but only if you actually practise.
- Memorising abbreviation lists without understanding. Questions often test what a feature does, not just its full form.
- Guessing freely. With a 3:1 penalty in a 15–20 question section, two or three wrong guesses can decide whether you qualify.
- Ignoring the post-specific standard. For CGL posts with prescribed computer proficiency, aim high.
Computer knowledge is one of the most scoreable sections if you prepare with the official syllabus and a computer in front of you. Cover the four areas, practise timed sections, and keep careless attempts to a minimum.