The minimum you need
Applying for almost any job now requires you to use a browser, manage an email account, attach a document, fill an online form and create a password you can retrieve. If any of that is uncertain, address it first, because everything else in a job search depends on it.
Create a free account with a professional address: some form of your name, no nicknames, no birth year. Learn to attach files, save drafts, search old messages and check the spam folder, where interview invitations regularly land.
Documents
Learn enough word processing to edit a resume, change fonts, adjust margins and export a PDF. Free office suites do everything a job search needs. Save every version to cloud storage so a broken computer does not end your search.
Spreadsheets
Basic spreadsheet skill is listed on an enormous share of office job postings and takes a weekend to reach a usable level: entering data, sorting, filtering, simple formulas, formatting. It is the highest return skill per hour invested for anyone applying to administrative, clerical or coordinator roles.
Video meetings
Learn to join a meeting from a link, mute and unmute, share a screen and switch the camera. Practice with someone before an interview rather than during one.
Where to learn for free
Public libraries in this region offer free computer classes, one-on-one help and computer and internet access for anyone with a library card. Large free online course platforms cover office software, workplace skills and technical subjects at no cost. Community colleges run short non-credit courses and often have free or low cost options for job seekers. Community organizations run basic computer classes aimed specifically at adults returning to work.
Keyboarding
If typing is slow, free typing practice sites will double your speed in a few weeks of daily practice. Data entry, clerical and customer service roles frequently test it.