What you ought to know about B-1 visa:

• Business visa (B-1) is meant for business purpose only. Legally, you are not allowed to work in the USA as a B-1 visa holder. 
• You are allowed to rent an apartment on B-1 visa. You might be required to show a recommendation letter from your company, and proof of your identity (i.e. your passport).
• You may open a bank account by showing proof of your identity (passport).
• You can get the ATM or debit card, from the bank in which you have opened your account, but not a credit card. Though most places ATM card can be used.
• You can rent a car, only if you have a valid driving license from your country (IDP or State Driving License). However, some US states insist on having a IDP (International Driving Permit).
• Initially you can drive in any US state on your IDP or State driving license, for a limited period of time. Rules vary from state to state. Confirm this from your local DMV office.
• You can't join any educational institute on B-1 visa.
• You can get a telephone/ cable connection installed in your apartment.
• You cannot convert B-1 to H-1 status, while you are in USA.
• B-1 visa can be extended for the maximum of total 1 year stay in USA.
• You are not liable to pay any taxes on your allowances, since it is not a salary.